Briggs and Stratton only running on one cylinder due to diodes
HTML-код
- Опубликовано: 10 окт 2023
- Follow along with me as I diagnose and repair this mower! Turns out it's an electrical problem. #diode #craftsman #briggsandstratton #lawncare #lawnmower #tools #diy #fluke #electricalproblems #electrical
Развлечения
Chased this issue for two days, this video got me to the problem. Thank you. Well done!
Thank you! Be sure and subscribe!
Very methodical diagnosis!! Great catch man!
Thanks Brad! I appreciate that!
First thing to check if the plug is wet is to check for sparks
Great job!!! I think I'm chasing one of these issues.
Thank you!
Great trouble shooting! Thanks for sharing the knowledge and experience. God Bless you and your business!
Great video! That’s a hard one to trace as most people would see spark and think good!
Thank you. I appreciate your kind words!
Good catch. I see these engines with cracked intake manifolds also causing dead cylinder.
Thank you! I have not seen one with a bad intake cause a miss yet! Thanks for sharing! I'll put that in the ol brain for later diagnosis'
The plastic ones can crack
What you are measuring is Forward and Reverse resistance in Ohms, not voltage, The voltage from the meter provides bias to either forward or reverse the diode junction (depending on the polarity of the meter probes) providing the two resistance readings. That's probably more info than anyone wants to know, but I'm too anal to have let it go. Good diagnostic video otherwise!
Thanks for the vid, this might be whats wrong with mine. Better this than a push rod. I would have never would have thought of this with a spark on both sides. Thanks for taking the time to post!!
Thank You!
Thanks for video. Time to troubleshoot.
This was exactly the problem I had. Many, many thanks for posting this repair.
Your welcome
When I see a new coil on that cylinder I AllWAYS pull the kill wire to check dio on b/s twin
Didn’t have the same problem, but this really helped me. Thank you so much.
Thanks for the positive comment!
Thank you for this content!
You're welcome
I have a 22hp BS running on one cylinder so i will go through that process and see if it works. Thanks for this video.
You're welcome!
Was that the problem?
Yes. The new diodes fixed it right up!
@@Wrenchesandrods those wires with diodes can be bought at auto parts stores?
@@JQUICK21 not that I know of, but you can order them on Amazon
It’s just a one way valve is all
Simple as that 😮
That was awesome I've seen that before but forgotten about it thanks for the info 😅
Nice job. 👍👍
Thanks, good trouble shoot
nice video and test. keep it up.
Thank you! I really appreciate comments like this!
MY daddy would have whipped my butt if I didn't clean that engine off when I was done fix'n it...All that dirt on them cylinder heads can cause overheating and bad things can happen to that sweet old engine....Great diagnosis though,,!!!!👍
Everything gets a bath before it goes back home to the customer.
I can see your dedication and common sense. World needs more mechanics like you, have any experience working on Boeing 777's. LoL
@@timmythepilot negative 🤣🤣🤣🤣
Mine tells me to get rid of some of my mowers i have but then always get more for free and buy a few more
Damn that black tool box looks familiar!!! 🤣🤣🤣🤣🤣🤣
Hell yeah it does! I'd rather him be using it still though!
Awesome👍
With the wire hooked up to the coils and the plug unplugged, should there be continuity from the terminal on the coil to ground?
Great video!
I learned my new thing for the day. Lets go for another.
With a bad diode, yes. With a good diode no
Perfect
Like the video and process... haven't seen this issue yet... wondering would it be a good way to test kill wires and diodes to unplug both wires, crank it up? To shut it back off after simply crimp the fuel line to shut down?
I don't think so. When the diode goes bad, it allows current in both directions, which makes it spark out of time. It's still sparking, but it's just at the wrong time.
Good vedios
Mines the same engine except for the air filter cover is different mine doesn't screw on it has the yellow piece you undo mine is 40h777
I have a question? If a 24HP Intel only has one coil (and it's bad) how can one cylinder have spark and the other doesn't?
I've never seen a 24hp intek with only one cylinder to my knowledge
@@Wrenchesandrods oh my goodness, thank you for responding so fast. No, you are correct. It has two cylinders. Does it have two coils or one? I’m having the same issue as the title of your video
Another video showed one coil, two cylinders with one misfiring cylinder
I can see two coils in your video at the 15 minute mark overhead view of your engine. Mine must have two coils so I could swap them from one side to another to see if it makes a difference. Once I do this I'll investigate the diodes. Already took carb apart and cleaned it.
Thank you. Thumbs up!
@user-ik4fd9ny4b pull the kill wires off of your coils and see if the spark returns. If it does, you might have a bare spot on one of your kill wires that is grounding to the block, or one of the diodes is bad.
@@Wrenchesandrods I did have a bare spot.. MiCE! Also, the coil was nearly touching the wheel, maybe 3 or 4 thousands. Could/would that interfere or stop sparking?
@@user-ik4fd9ny4b use a business card to gape the coil to the magnetic and you should be set!
These diode wires can be bought at Auto Zone or Harbor Freight maybe? Or where?
No but there are available on amazon
@@Wrenchesandrods Thank you...but those that popped up on Amazon with a search don't look like these originals at all......
@JEFFQUICKLE9 the key is that they work. They might look different. That's okay. If you shoot me an email with your model type and code, I will look the parts up for you and get you a part number. Justinseabaugh3464@gmail.com
@@Wrenchesandrods I just emailed you Justin....
AMAZON & E BAY
I don't have a spare mower lying around, any idea where I might get that wire with the diodes?
Amazon
Most repair shops keep them in stock 😊😊😊
Where did you get that fancy compression tester?
My mom made it! It took about 9 months!
@@Wrenchesandrodslolol 😮
How about the size of the diode ???
Don’t want to buy the wire harness 😊
Thanks for sharing and any part information possible
amzn.to/3Pe853v Here is an Amazon link to the whole wire.
$12 for two of them makes it worth ordering just to have it on hand.
@@markchidester6239I agree and did that and in a week used one
Thanks
For me both cylinders are firing but the “driver side” one isn’t firing as much as the other side and i can’t figure out why for the life of me, i’ve tried everything i can think off and it doesn’t seem to want to work properly, both fire but one is not firing as much
Pull your kill wire off the weak coil and see if the spark improves. If it does, you kill wire is grounding to the block somewhere.
It could be a to tight valve
Could I just run the engine without the coil safety ground wire? Theoretically of course
Yes, but you won't be able to shut it off
Sure just starve it of gas and it'll shut off or choke the air breather or leave your kill wire plugged to the coil and unplug it from the harness let it dangle touch it to any metal to shut the mower off
I know one man who ran a wire just to kill it until I told him what was wrong and I had the part 😊