Life saver!!! I had no compression after messing with this 8 horsepower Briggs & Stratton 4 days, and your video show me how easy it was to at least look in and see the valves. Once I did that I seen the valve stuck open lubed it tapped it down and it started right up! I love you! Thank you so much for this video, it saved more days of wanting to throw tools!
Another great vid. Straight to the point NOT telling us the history of the machine you are working on, what you have in your garage, when you built the shop, who you are married too, where you bought your shirt AND then getting to what we tuned in to see. THANK YOU.
Mark Weaver I gotta agree with you on the " Get to the Point " comment. I have a low tolerance for long, drawn out videos too. 5 minutes is Great. 7 Minutes is a little Borderline. 10 Minutes or more and I'm using my right arrow to skip to what I need.. Unless I'm doing a complete job or something similar..
Hey Moe, I have run across several stuck valves that were caused by the owners running old "varnishy" gasoline in the motor. The Engine, and valves work fine while it is hot, however once it cools the old gooy gas forms a perfect glue and effectively glues the valve into the guide. The first thing I fire down into the valve is carburetor cleaner. If the seizure is caused by gooey gas, it frees up instantly. I use a few squirts of Marvel Mystery where you use ATF. (I simply like the smell!)
This helped me save a mower from the scrap heap today. After watching your video, I put an engine back together that I was going to part out. After taking off the head, I could see the intake valve was slightly stuck in the open position. I then sprayed a bunch of penetrating oil around the valve and kept tapping it back down flush with the engine block with a plastic mallet when it was supposed to close. I also made sure the valves could be turned by hand. After putting it back together, it had compression and started right up.
Just purchased an old Montgomery Ward Edger with a 3HP Briggs, did tje compression test and "0" stuck valve. Your video is a big help for me and my 11 yr old son to get this thing going. Thanks
Thank you. That was really helpful! My generator wouldn't start this morning, no compression. I suspected the valves. After watching your video I took the plug out and shot some WD40 on the exhaust valve. I couldn't turn it around because it was too tight to get a screwdriver in there. Put the plug back, and it started first time. Have compression again! Cheers.
Nice video. Learning from you is easy. Thanks for showing what can be possible. My engines with this kind of access have always been down on a mower and facing front. I shoot them and pull them over to decarbonize valves sometimes, but this gives me more to think about. Thanks again.
MY FAULT but you saved me a ton of work. I tried using some 'older' gas (just to use it up) in a new rebuild. Big mistake. The 8-HP B&S started and ran but after it cooled down, the intake valve stuck open with NO compression. FIRE shot out of the carb. I used PB Blaster but now I think carb cleaner would work even better to dissolve the varnish deposits on the valve stem. Freeing the valve using a screwdriver was not easy. After tapping hard several times, the valve finally snapped shut, compression returned and now the generator works just fine. Thank You.
@@sixtyfiveford yep. BTW, im 65 and my first ride was a 65 custom. 4 door cruiser, white over black, 390 interceptor with the pull cable overdrive. No door handles in the back seat, made dates antsy,ha! first gear to 30, let off the pedal, and then to warp drive!! Well, at least back then...
Very common on these Tecumseh snow blower engines is the valves loose their clearance due to wear, in which case you can re-grind them and lap them. A bit of a daunting task if you have never done it, but still perfectly doable.
Nice i was going to take it apart but this worked for my snowblower.I noticed it lost power and the muffler was glowing red at night.Now i an tossing snow 20 or more feet and no more stalls or spits and sputters.Thanks a bunch and have a great day.
Good deal! I started using the Sea Foam Deep Creep and seems nice. Funny, is I use the WD40 more to coat thoroughly what's sitting outdoors. Thanks for sharing!
Hello, this video sounds extremely useful to me, as I have a similar Tecumseh 10HP, with the valves stuck, I believe. It was running great, then standing in the open for quite a few years. Now I tried to bring some life to it, it has no compression at all, and I could see through the spark plug hole that the valves did not move when I cranked the engine. I thought to open the engine, but after watching this video, I might be able to save some job there. Thanks!
I was working on an old Craftsman tiller with a 5 hp Briggs and Stratton engine. It had been sitting around for a number of years. I was able to get it started the first couple of times without much trouble and then nothing. After I took out the spark plug, I could see that the valve was indeed stuck open. I really had to wiggle the thing back and forth to get it unstuck. I used the penetrating oil and the trans fluid and it began working up and down. It eventually started. Now is running good.
Awesome. Glad the video helped. When you put it away, make sure it is on the compression stroke(pull until you feel resistance on the rope). This will make sure the valves are closed, so if they stick then the engine opens them.
Love it, I have a john deere that had been sitting for a while and did start up and ran but every now and then would start smoking and finally will not start. I am thinking its just what you are talking about.
There's a good chance if it feels like there is very little compression after it dies. If the smoke is black it could be flooding the engine with gas. Then it would be a carb issue.
Very Good 65! I have a similar video showing how you can remove the muffler and pinpoint lube the valve guide as another option to free a stuck exhaust valve. I can't count how many vintage engines I've acquired with this very issue and I've used your method as well. Again, Great execution on the explanation of how to free a sticky valve! Cheers!! Zip~
Hey I really appreciate this video. I didn't know that the valves should be free spinning in the up position. This really saved my mower. Thanks again.
You saved me from tearing a troybilt horse techumseh head off. Took a couple soaking over two weeks but it freed up. Zero dollars for a working tiller. Thanks
That's actually a difficult question. Most of these small engines have a cam mounted compression release that deactivates at a couple hundred rpm. This throws the off your compression reading. With that said most engines I have tested are around 70+ psi. If it is lower and adding a little oil to the cylinder dramatically increases the compression reading then the rings are shot.
Smashing tutorial as allways :-) love the graphics, it gets the understanding direct to the brain :-) No over complicated data to absorb, just the bit you need to get it going :-)
I would check for spark when it dies. Your symptoms are that of a failing ignition coil. Another option is a plugged vent on the gas cap. Check this by loosely attaching or removing the gas cap and trying to get it to run.
I’ve had great luck with marvel mystery oil: engine treatment. Half the bottle in the gas and the other half in the oil. Worked on a Mitsubishi Mivec engine that went +30k miles on an engine change and a Toyota pickup that sat for years
Great video, well explained. I will be using that method to free up a stuck open exhaust valve on a 6,000 watt Generac generator that has a 10 hp Tecumseh engine.
Had this problem (no compression and could not start), squirted in some PB Blaster, let that stand for an hour or so and then squirted in some transmission fluid and worked the valve loose. Hammered a chopstick on top of the valve to pop in back in fully and this really had it going when I spun the blade. Started and blew out some smoke but seems fine after this. Thanks for the advice and the video.
thanks a million WE are getting 15 to 20 cm. dumps of snow here..I have an 70s Canadiana snowblower with a briggs and stratton engine .. Back fires ,,,sputters.and stalls under load ..Im hoping the valves are just sticking
Great tips, sixtyfiveford! Thanks for sharing the info. You got a "thumbs up" from me. It is my experience that a good mechanic will share information because it is his/her desire to help others. Yes, I called you a good mechanic. Lol
Smart tip on putting you machine away for long periods . . .park the piston on the power stroke so no moisture will enter through the valves . . .I like that!
Great video. Mine wouldn,t start after lunch although had been standing a couple of years. I'd already taken off the head so lubed and turned the valve by hand. Easy fix and back running in 10 minutes. Thanks.
I HAVE A 5 HORSE BRIGGS WITH A STUCK VALVE, AND AM GOING TO TRY YOUR METHOD AND HOPE I DON'T HAVE TO REMOVE THE HEAD. THANK YOU FOR SHARING... Duane Hampton
I bad spring is rare. It is more than likely just the valve stem sticking from carbon buildup. Make sure you're rotating it as well as moving it up and down. Try a couple types of lubricant and/or even carb cleaner to dissolve whatever is holding it up.
My 8 hp Briggs & Stratton did this on my generator while it was running, I pulled the head off and the exhaust valve was stuck up I lubed it and it had compression again. What causes this? A lubrication problem? I could understand if it had been sitting a long time but it had been running for about 20 minutes when it stopped. The engine looks clean on the inside I saw no issues other than some carbon buildup. Has great compression again.
Very good trick and explanation ( originally I could see the edge of intake valve but wasn't positive it was really it and or if it was stuck ,it is and was ) but I was so involved trying to turn it with the screw driver I almost total stripped out the Spark Plug Threads !,!
i have a 8 hp tecumseh on my snowblower and when i turn the flywheel by hand , it will only make a few rotations and it jams up , this happens clockwise or counter clockwise, it will jam up , you can here something hit the top of the head. when i tried to start it with the electric start it made my starter just hum because it could't turn it over , that's how jammed it is .would you have any clue to what's causing it to jam like that, By the way, your content is great !!!
If you can get more than 1 full rotation but not quite 2(1.5). It is a valve issue. It could be stuck, too long of spark plug installed, debris on the cam gear. I assume you have a flat head(L head) and not an OHV engine(it'll have a steel cover that says OHV). This is an effortless engine to work on even for novices. Take the roughly dozen bolts out of the head and pop it off. You'll see the 2 valves and piston. See if you can spin both valves/they move up and down.
Thanks for the response Moe. You were right, the engine loses spark when it gets hot so i guess I'll be trawling ebay for a new coil. That is unless you've got a "how to fix an ignition coil without trawling ebay for a new one" video that I've not seen yet. ;-) Thanks again for the advice and all the very best of luck with your channel.
Thanks for the great vids. I will try this on my briggs and Stratton pressure washer tomorrow but don't know if it'll work. Thee The engine runs sweet for 5-10mins then stops and won't start again until it's gone cold. Could it be something other than a sticking valve? Atb and keep up the great vids. I feel like I'm back at school but this time I'm enjoying it.
Here's a good question. I have a tecumseh powered MTD snowblower, and it likes to vibrate the mixture screw on the carb out after a bit. I can fix it temporarily by super gluing the screw in place once I get the mixture set perfectly, but eventually the vibrations break the glue joint and it goes lean anyway. Really frustrating, especially when it happens halfway through snowblowing the driveway.
I have a Sportsman Gen4000 Generator and I am having a problem with the exhaust valve. It seems to not want to open and close. How would I correct this problem?
I have a 12.5 hp Briggs and Stratton on a MTD riding mower that I believe has a compression issue. If I pull the spark plug out the engine will crank over and over but if I put the spark plug in the engine only does about one rotation before it stalls out. Does this seem like the same issue? I tried lubing up the valves last night and it didn't seem to fix it yet. Perhaps I need more lube or does it sound like it could be something else? Thanks for your video.
Sounds like you have good compression and your valves are working properly. If they were sticking they would stick open and they engine would spin freely, the same as pulling the spark plug. You more than likely have a wiring issue to the starter and it isn't spinning hard enough. You can take jumper cables directly from the battery to the starter. Hook up the red + and black - jumper cables to the battery and put the other end/black Negative to the engine block; then put the other end of the red/Positive to the little bolt on the starter with the thick wire coming off. The starter should crank with full power once you touch it. Put the Key in the RUN/ON position and this should be enough to start the engine. If it is then you have a dirty connection somewhere or a failing starter solenoid. If it doesn't have enough power to crank the engine, more than likely the starter's brushes need to be changed.
I have a john deere L100 riding mower with no compression. Has been running ok but less power (towing a loaded trailer) than it once had. Shut it off and it hasn't started since. No compression. One valve was clearly stuck open. Sprayed crc lubricant in there and both valves now move when I crank it. Still no compression. The sticky valve is still not seating properly, I believe, because the rocker arm is very sloppy. Rods are not bent. The spark plug is located differently than the video and I cant seem to see the valves to turn then with a screwdriver. Do you think I need to pull the head? Lap the valves?
You have the 17hp ohv Briggs. If the valves stuck the likely touched the piston and are slightly bent. The head will need to be taken off and the valves replaced or bent back.
i have this exact engine on a yard edger, and i have already forced it down with a screwdriver a few times, then put liquid wrench in there, then forced it down a few more times, then it kind of slipped off of my to-do list. as i was walking around bored yesterday i popped off the spark plug and it was still sticking after soaking for a few weeks. i am pretty sure the valve spring is screwed, or mabey the lifter?
Do you have a How too, on a Stuck Exhaust Valve on Briggs OHV 16.50. It's on a Husky 5000 Generator. Thanks from St Louis, MO, for another Great Video.
George Edwards Since it is an overhead valve engine you can access the back/stem of the valve by quickly removing the valve cover. You'll be able to see which valve is stuck while you rotate the motor and help push it in and out to free it up.
I have a flat head 5hp Briggs that has been sitting in a field for 10 + years. The intake valve is stuck shut. I removed the tappets and tried to pry the valve up under the valve spring. It's like it's welded shut. I've used PB and Marvel. Any suggestions?
Took the valve out completely use some emory cloth on the stem, brake cleaner on the inside. The valve works properly now. If I can just get it all back together now.
Someone tried living in the intake of my mower, Model 28 briggs. That intake valve is stuck pretty solid, I gripped the valve with some channel locks and it wouldnt spin.. Ideas?
I think I have a sticky valve which causes low compression every 4-5 strokes. I'll try the PB Blaster thru the sparkplug hole. Tecumseh LV195EA. How long does this fix last?
Thanks, I'm glad it helped. Remember when you put it away, to pull the motor over until you feel resistance. This will make sure it is on the compression stroke, so both valves are closed.
Today, my 9 yr old gas snowblower tried its 1st run B4 winter. It started easily and ran for about 3 min then locked up. Cannot pull even an inch of the rope, and electric-starter works but not the engine. May be the piston/valve seized. Tomorrow, will try this method to see whether it can be saved!
Life saver!!! I had no compression after messing with this 8 horsepower Briggs & Stratton 4 days, and your video show me how easy it was to at least look in and see the valves. Once I did that I seen the valve stuck open lubed it tapped it down and it started right up! I love you! Thank you so much for this video, it saved more days of wanting to throw tools!
Thanks, I'm glad you liked it.
Another great vid. Straight to the point NOT telling us the history of the machine you are working on, what you have in your garage, when you built the shop, who you are married too, where you bought your shirt AND then getting to what we tuned in to see. THANK YOU.
+Mark Weaver Haha, hey Thanks.
Lol you must not like movies that much
No shit, when you're watching this, you've just been beating your knuckles like crazy in 10 degree weather. Nice job getting to the point.
Mark Weaver
I gotta agree with you on the " Get to the Point " comment.
I have a low tolerance for long, drawn out videos too.
5 minutes is Great.
7 Minutes is a little Borderline.
10 Minutes or more and I'm using my right arrow to skip to what I need..
Unless I'm doing a complete job or something similar..
You forgot to mention the useless 2 hour introduction..agree, agree, agree, agree agree agree agree (i think you get the point)
Carb cleaner is great to clean off old varnished gas. Thanks for watching.
Hey Moe,
I have run across several stuck valves that were caused by the owners running old "varnishy" gasoline in the motor. The Engine, and valves work fine while it is hot, however once it cools the old gooy gas forms a perfect glue and effectively glues the valve into the guide. The first thing I fire down into the valve is carburetor cleaner. If the seizure is caused by gooey gas, it frees up instantly. I use a few squirts of Marvel Mystery where you use ATF. (I simply like the smell!)
This helped me save a mower from the scrap heap today. After watching your video, I put an engine back together that I was going to part out. After taking off the head, I could see the intake valve was slightly stuck in the open position. I then sprayed a bunch of penetrating oil around the valve and kept tapping it back down flush with the engine block with a plastic mallet when it was supposed to close. I also made sure the valves could be turned by hand.
After putting it back together, it had compression and started right up.
Thanks, I'm glad you liked it.
Just purchased an old Montgomery Ward Edger with a 3HP Briggs, did tje compression test and "0" stuck valve. Your video is a big help for me and my 11 yr old son to get this thing going. Thanks
Thank you. That was really helpful! My generator wouldn't start this morning, no compression. I suspected the valves. After watching your video I took the plug out and shot some WD40 on the exhaust valve. I couldn't turn it around because it was too tight to get a screwdriver in there. Put the plug back, and it started first time. Have compression again! Cheers.
That's GREAT. I'm glad they video was helpful.
Nice video.
Learning from you is easy.
Thanks for showing what can be possible.
My engines with this kind of access have always been down on a mower and facing front.
I shoot them and pull them over to decarbonize valves sometimes, but this gives me more to think about.
Thanks again.
Thanks for coming over and watching. Thanks for the video compliment. -Moe
MY FAULT but you saved me a ton of work. I tried using some 'older' gas (just to use it up) in a new rebuild. Big mistake. The 8-HP B&S started and ran but after it cooled down, the intake valve stuck open with NO compression. FIRE shot out of the carb.
I used PB Blaster but now I think carb cleaner would work even better to dissolve the varnish deposits on the valve stem. Freeing the valve using a screwdriver was not easy. After tapping hard several times, the valve finally snapped shut, compression returned and now the generator works just fine. Thank You.
I really like this vid!! simple, polite and respectful, to the point, familiar with the details, short and sweet message. Good style bro!!
Thanks, I'm glad you liked it.
@@sixtyfiveford
yep.
BTW, im 65 and my first ride was a 65 custom. 4 door cruiser, white over black, 390 interceptor with the pull cable overdrive. No door handles in the back seat, made dates antsy,ha! first gear to 30, let off the pedal, and then to warp drive!! Well, at least back then...
and war pigs or black dog on the speakers!!!
Very common on these Tecumseh snow blower engines is the valves loose their clearance due to wear, in which case you can re-grind them and lap them. A bit of a daunting task if you have never done it, but still perfectly doable.
Yes, I've done many a valve jobs on Tecumseh engines.
Nice i was going to take it apart but this worked for my snowblower.I noticed it lost power and the muffler was glowing red at night.Now i an tossing snow 20 or more feet and no more stalls or spits and sputters.Thanks a bunch and have a great day.
Awesome.
Good deal! I started using the Sea Foam Deep Creep and seems nice. Funny, is I use the WD40 more to coat thoroughly what's sitting outdoors. Thanks for sharing!
Hello, this video sounds extremely useful to me, as I have a similar Tecumseh 10HP, with the valves stuck, I believe. It was running great, then standing in the open for quite a few years. Now I tried to bring some life to it, it has no compression at all, and I could see through the spark plug hole that the valves did not move when I cranked the engine. I thought to open the engine, but after watching this video, I might be able to save some job there. Thanks!
I was working on an old Craftsman tiller with a 5 hp Briggs and Stratton engine. It had been sitting around for a number of years. I was able to get it started the first couple of times without much trouble and then nothing. After I took out the spark plug, I could see that the valve was indeed stuck open. I really had to wiggle the thing back and forth to get it unstuck. I used the penetrating oil and the trans fluid and it began working up and down. It eventually started. Now is running good.
Thank you! Stuck intake valve on B&S chipper. Got it going!
Awesome.
Thank you! We just got 10 inches of snow in northern MN and my snowblower woudnt start, it was a stuck intake valve and this fixed it .
Awesome. Glad the video helped. When you put it away, make sure it is on the compression stroke(pull until you feel resistance on the rope). This will make sure the valves are closed, so if they stick then the engine opens them.
Love it, I have a john deere that had been sitting for a while and did start up and ran but every now and then would start smoking and finally will not start. I am thinking its just what you are talking about.
There's a good chance if it feels like there is very little compression after it dies. If the smoke is black it could be flooding the engine with gas. Then it would be a carb issue.
Very Good 65! I have a similar video showing how you can remove the muffler and pinpoint lube the valve guide as another option to free a stuck exhaust valve. I can't count how many vintage engines I've acquired with this very issue and I've used your method as well. Again, Great execution on the explanation of how to free a sticky valve! Cheers!! Zip~
Thanks. They always seam to stop with a valve open.
I heve a similar one on the pullcord black case hase no code or nothing
Thanks A lot! I got a free engine that had no compression and this revived it!
That's awesome.
I appreciated the diagrams and the suggestion to look under the spark plug hole. The intake valve was stuck open and I was able to free it up.
Glad it helped
This is just what I needed to revive a mower that had not been used. Thanks for sharing your expertise.
+Dillon Menefee GREAT! I'm glad the video helped.
Easy and simple way to diagnose/fix valve issues without having
to pull the valve cover and head............Great video thanks.
Hey Thanks.
Hey I really appreciate this video. I didn't know that the valves should be free spinning in the up position. This really saved my mower. Thanks again.
You saved me from tearing a troybilt horse techumseh head off. Took a couple soaking over two weeks but it freed up. Zero dollars for a working tiller. Thanks
Awesome
That's actually a difficult question. Most of these small engines have a cam mounted compression release that deactivates at a couple hundred rpm. This throws the off your compression reading. With that said most engines I have tested are around 70+ psi. If it is lower and adding a little oil to the cylinder dramatically increases the compression reading then the rings are shot.
Smashing tutorial as allways :-)
love the graphics, it gets the understanding direct to the brain :-)
No over complicated data to absorb, just the bit you need to get it going :-)
I would check for spark when it dies. Your symptoms are that of a failing ignition coil.
Another option is a plugged vent on the gas cap. Check this by loosely attaching or removing the gas cap and trying to get it to run.
I have an old Sears 12.5HP tractor that has a sticking valve that pops out the exhaust all the time. I think this will help lots, THANKS!
I’ve had great luck with marvel mystery oil: engine treatment. Half the bottle in the gas and the other half in the oil. Worked on a Mitsubishi Mivec engine that went +30k miles on an engine change and a Toyota pickup that sat for years
Great video, well explained. I will be using that method to free up a stuck open exhaust valve on a 6,000 watt Generac generator that has a 10 hp Tecumseh engine.
Thanks for giving your time for the video you helped me get my tiller fixed with no repair shop costs thank you again God bless
You're very welcome. I'm glad the video helped.
I highly recommend lubricating spark plug hole if you have an issue starting, let it soak in penetrating oil it will free it up
Great tip. I have two small engines to try this on. one is a generator and the other is a modified lawn tractor with a bucket lift. Thanks!
Thanks, I'm glad you liked it.
Had this problem (no compression and could not start), squirted in some PB Blaster, let that stand for an hour or so and then squirted in some transmission fluid and worked the valve loose. Hammered a chopstick on top of the valve to pop in back in fully and this really had it going when I spun the blade. Started and blew out some smoke but seems fine after this. Thanks for the advice and the video.
That's great. I'm glad the video was helpful.
thanks a million WE are getting 15 to 20 cm. dumps of snow here..I have an 70s Canadiana snowblower with a briggs and stratton engine .. Back fires ,,,sputters.and stalls under load ..Im hoping the valves are just sticking
Carb would be my first look with those symptoms, followed by a spark plug.
Great tips, sixtyfiveford! Thanks for sharing the info. You got a "thumbs up" from me. It is my experience that a good mechanic will share information because it is his/her desire to help others. Yes, I called you a good mechanic. Lol
Thanks. I hope it comes in handy.
This is a jedi engine trick my boy.
You just saved the galaxy👍
Smart tip on putting you machine away for long periods . . .park the piston on the power stroke so no moisture will enter through the valves . . .I like that!
Thanks for watching.
For some reason i assumed the spark plug wasnt directly above the valves like that. Thanks for the video.
Thanks, I'm glad you liked it.
Great video. Mine wouldn,t start after lunch although had been standing a couple of years. I'd already taken off the head so lubed and turned the valve by hand.
Easy fix and back running in 10 minutes.
Thanks.
+Neil Tong Thanks for watching.
Thanks for the video. Same problem with a Briggs on a small tiller. I'll give it a shot this weekend!
You're welcome. It's always something small with these things.
I HAVE A 5 HORSE BRIGGS WITH A STUCK VALVE, AND AM GOING TO TRY YOUR METHOD AND HOPE I DON'T HAVE TO REMOVE THE HEAD. THANK YOU FOR SHARING...
Duane Hampton
Let me know how it goes.
You are the man! We have another big storm on the way. My old Craftsman is ready to go. I thought it was junk. Thanks.
Scott Skinner Great.. Glad the video helped.
great vid! gonna give this a try on a 8 hp briggs powered manco 3 wheeler I just got.
I bad spring is rare. It is more than likely just the valve stem sticking from carbon buildup. Make sure you're rotating it as well as moving it up and down. Try a couple types of lubricant and/or even carb cleaner to dissolve whatever is holding it up.
My 8 hp Briggs & Stratton did this on my generator while it was running, I pulled the head off and the exhaust valve was stuck up I lubed it and it had compression again. What causes this? A lubrication problem? I could understand if it had been sitting a long time but it had been running for about 20 minutes when it stopped. The engine looks clean on the inside I saw no issues other than some carbon buildup. Has great compression again.
2 causes are rust from sitting for long periods and carbon buildup .
@@sixtyfiveford Thanks, I hope my problem is solved now.
Thanks for watching Bill
-Moe
Thanks for your video! In 5 minutes we had our tiller up and going without needing to buy a new engine!
Nancy Holland Awesome.. I'm glad it helped.
Saved me a ton of time! Thank you!
Excellent work sir! Thanks for your time. Helped me a lot.
Very good trick and explanation ( originally I could see the edge of intake valve but wasn't positive it was really it and or if it was stuck ,it is and was ) but I was so involved trying to turn it with the screw driver I almost total stripped out the Spark Plug Threads !,!
That's great to hear!
I have a stuck valve on the Onan of my SS16. Hopefully we can get it working again.
Sometimes they free up effortlessly. Sometimes they need a bunch of love to get them freed up
That's great to hear.
Thanks, thought I was going to take the head off!
Now you just need some snow and you're good to go. Thanks for the vid.
Thanks, I'm glad it was helpful.
Keep adding a little lube over the next week or so. Add a shot every day or so. If it doesn't free up then you will need to start pulling parts.
Thanks for this! Got my Briggs running again.
Thanks, I'm glad you liked it.
You work on other engines? Nice narration and explanations. Thanks
Thanks Joe.
It should have a spring, washer and oring on it. These all keep it from vibrating in-out.
i have a 8 hp tecumseh on my snowblower and when i turn the flywheel by hand , it will only make a few rotations and it jams up , this happens clockwise or counter clockwise, it will jam up , you can here something hit the top of the head. when i tried to start it with the electric start it made my starter just hum because it could't turn it over , that's how jammed it is .would you have any clue to what's causing it to jam like that,
By the way, your content is great !!!
If you can get more than 1 full rotation but not quite 2(1.5). It is a valve issue. It could be stuck, too long of spark plug installed, debris on the cam gear. I assume you have a flat head(L head) and not an OHV engine(it'll have a steel cover that says OHV). This is an effortless engine to work on even for novices. Take the roughly dozen bolts out of the head and pop it off. You'll see the 2 valves and piston. See if you can spin both valves/they move up and down.
Nice fix. Thanks for another great tip!
Thanks for the response Moe. You were right, the engine loses spark when it gets hot so i guess I'll be trawling ebay for a new coil. That is unless you've got a "how to fix an ignition coil without trawling ebay for a new one" video that I've not seen yet. ;-)
Thanks again for the advice and all the very best of luck with your channel.
Excellent video, thanks for sharing that with us 👍
thank you, one of the best how to videos I have ever seen.
Danny Manha Thanks, I'm glad it helped.
Thanks for the great vids. I will try this on my briggs and Stratton pressure washer tomorrow but don't know if it'll work. Thee
The engine runs sweet for 5-10mins then stops and won't start again until it's gone cold. Could it be something other than a sticking valve?
Atb and keep up the great vids. I feel like I'm back at school but this time I'm enjoying it.
Im thinking this is why some of these tecumseh's fart alot .......sticking exh valve.
love the vid.
Thanks, I'm glad you liked it.
Thanks a bunch. You saved me a lot of work and or buying a new generator.
Marvel Mystery oil works the best for this.
Awesome info man.. Thanks.. would have cost me a ton of money to fix. Appreciate your time in making this video.
Great tip I have that very problem on my snow blower. Thanks
Robert SLOAN JR. Thanks, hopefully it helps.
Here's a good question. I have a tecumseh powered MTD snowblower, and it likes to vibrate the mixture screw on the carb out after a bit. I can fix it temporarily by super gluing the screw in place once I get the mixture set perfectly, but eventually the vibrations break the glue joint and it goes lean anyway. Really frustrating, especially when it happens halfway through snowblowing the driveway.
I used to have that same snow blower. :)
They're built like tanks.
I have a Sportsman Gen4000 Generator and I am having a problem with the exhaust valve. It seems to not want to open and close. How would I correct this problem?
I have a 12.5 hp Briggs and Stratton on a MTD riding mower that I believe has a compression issue. If I pull the spark plug out the engine will crank over and over but if I put the spark plug in the engine only does about one rotation before it stalls out. Does this seem like the same issue? I tried lubing up the valves last night and it didn't seem to fix it yet. Perhaps I need more lube or does it sound like it could be something else? Thanks for your video.
Sounds like you have good compression and your valves are working properly. If they were sticking they would stick open and they engine would spin freely, the same as pulling the spark plug. You more than likely have a wiring issue to the starter and it isn't spinning hard enough. You can take jumper cables directly from the battery to the starter. Hook up the red + and black - jumper cables to the battery and put the other end/black Negative to the engine block; then put the other end of the red/Positive to the little bolt on the starter with the thick wire coming off. The starter should crank with full power once you touch it. Put the Key in the RUN/ON position and this should be enough to start the engine. If it is then you have a dirty connection somewhere or a failing starter solenoid. If it doesn't have enough power to crank the engine, more than likely the starter's brushes need to be changed.
Thanks for watching.
I have a john deere L100 riding mower with no compression. Has been running ok but less power (towing a loaded trailer) than it once had. Shut it off and it hasn't started since. No compression. One valve was clearly stuck open. Sprayed crc lubricant in there and both valves now move when I crank it. Still no compression. The sticky valve is still not seating properly, I believe, because the rocker arm is very sloppy. Rods are not bent. The spark plug is located differently than the video and I cant seem to see the valves to turn then with a screwdriver. Do you think I need to pull the head? Lap the valves?
You have the 17hp ohv Briggs. If the valves stuck the likely touched the piston and are slightly bent. The head will need to be taken off and the valves replaced or bent back.
Hey Thanks. I must have too much time on my hands if I'm playing with animations in my videos.
Moe, what is the minimum compression on a 6.5 Tecumseh?
Very nice! Easy to follow video.
i have this exact engine on a yard edger, and i have already forced it down with a screwdriver a few times, then put liquid wrench in there, then forced it down a few more times, then it kind of slipped off of my to-do list. as i was walking around bored yesterday i popped off the spark plug and it was still sticking after soaking for a few weeks. i am pretty sure the valve spring is screwed, or mabey the lifter?
Do you have a How too, on a Stuck Exhaust Valve on Briggs OHV 16.50. It's on a Husky 5000 Generator. Thanks from St Louis, MO,
for another Great Video.
George Edwards Since it is an overhead valve engine you can access the back/stem of the valve by quickly removing the valve cover. You'll be able to see which valve is stuck while you rotate the motor and help push it in and out to free it up.
I have a flat head 5hp Briggs that has been sitting in a field for 10 + years. The intake valve is stuck shut. I removed the tappets and tried to pry the valve up under the valve spring. It's like it's welded shut. I've used PB and Marvel. Any suggestions?
obviously with this condition the motor doesn't want to rotate. I would soak it and rotate the engine forward and backwards to try and free it up.
Took the valve out completely use some emory cloth on the stem, brake cleaner on the inside. The valve works properly now. If I can just get it all back together now.
+Robert Hoover Yeah, sometimes we have to dig all the way in.
Someone tried living in the intake of my mower, Model 28 briggs. That intake valve is stuck pretty solid, I gripped the valve with some channel locks and it wouldnt spin.. Ideas?
I think I have a sticky valve which causes low compression every 4-5 strokes. I'll try the PB Blaster thru the sparkplug hole. Tecumseh LV195EA. How long does this fix last?
If you get it freed up it will last indefinitely
Great video . Thanks
if it doesent free up would you guess the spring is effed or the lifter is stuck up?
For sure...
Good video. Never really thought of doing that. I will defiantly try that trick.
Alan Williamson Hey Thanks.
Hi sir. Whar are the liquid that used to penetrate the valves? Can I make my own? Thanks
Anything like WD-40. You could also use transmission fluid
Learned something today! Tnx
You bet!
Thanks for your video and explanation. I'm going to try this on a tractor.
Wayne White Sometimes just a little tap and they fall like their supposed to and sometimes they take a little work. Let me know how it goes.
Exactly the problem I'm having on my antique Jari sickle bar mower. Going to let it set in PB Blaster overnight!
I hope it's an easy fix like this one was.
I had the same problem today . great video
Thanks, I'm glad it helped. Remember when you put it away, to pull the motor over until you feel resistance. This will make sure it is on the compression stroke, so both valves are closed.
Today, my 9 yr old gas snowblower tried its 1st run B4 winter. It started easily and ran for about 3 min then locked up. Cannot pull even an inch of the rope, and electric-starter works but not the engine. May be the piston/valve seized. Tomorrow, will try this method to see whether it can be saved!
Was it empty on oil?
I called a service guy to come and check, he straightly told me must be the piston broke. Tell me to get a new one.
@@charlesyue3891 Sorry for the bad news.
Thanks Buddy, almost same motor with same problem, I subscribed to your channel
Awesome. I'm glad you liked it.
sixtyfiveford but mine a 8hp n looking in the spark plug hole, looks like 3 valves moving,, is that correct?