Triumph 650 Motorcycle Engine Disassembly & Rebuild part 5 - Lowbrow Customs
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- Опубликовано: 13 сен 2024
- This video is presented by: www.lowbrowcust...
Part 5 - With helpful tips and tricks, Todd takes a step by step walk through on splitting the cases, removing bearings and race bearings in preparation for vapor blasting. He shows you what to look for and how to know when certain parts need replaced. Plus we have a Triumph BBQ for lunch!
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00:40 - Start to remove all fasteners holding the two halves together.
05:32 - Remove Tac Drive
08:25 - Plug the Tac drive hole with Lowbrow Customs Plug - www.lowbrowcus...
09:00 - Remove through bolt on front of cases where L bracket attaches for exhaust
10:30 - Check one last time for any remaining oil in the crank case and drain.
10:56 - Remove engine from engine stand if you have one.
11:05 - Remove final two fasteners on bottom of the cases.
12:38 - Important* don't forget to remove the two flathead screws located on the top of the engine by the rods.
15:10 - Double Check all of your work, make sure all fasteners have been removed from the cases.
16:00 - Split the cases using a dead blow hammer.
16:50 - Please don't beat on your crankshaft!
17:24 - Pull the two halves apart, protect your rods.
17:53 - Remove exhaust and intake cams.
18:00 - Crank case breather vent info.
18:25 - Remove timed breather disk from the intake cam hole and explanation on how it works
19:55 - Difference between early and later year's breather systems and what to look for, seals, etc.
21:05 - Remove crankshaft seal if you have one.
21:50 - Later breather system walk through.
22:55 - Remove the crank shaft from the right side case.
24:00 - Again, Do not beat on the crank shaft!
24:20 - Oil Filter Screen overview, removal and cleaning.
28:45 - Remove Transmission Seal.
29:47 - Remove the Snap ring from the bearing on the transmission.
30:04 - Remove your plunger from your transmission or try to...
31:11 - Remove your drain and level plug from transmisson.
31:50 - Try again to remove the plunger from your transmission.
32:16 - Remove the three bearings from the right side case. Crank shaft bearing, transmission bearings - layshaft and main shaft.
37:18 - Check the specs on your cam bushings, they are the least ware item in this engine and most likely will not need replaced in most cases.
37:54 - Wash your crank cases.
38:03 - Gasket scraping tip.
38:30 - Remove the race from the left case. Theres one way to do it and then Todd's way to do it.
39:14 - Chef Todd cooks up some Triumph BBQ
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"Orbiting a Distant Planet"
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The BBQ trick is absolutely priceless. Thanks! Even after 50 years working on such engines, it is never to late to learn a new trick.
Living in the far north of Canada among few who work on Triumphs, nobody ever showed me that trick before.
God bless ya. :-)
That barbecue trick was the most impressive thing i've seen this year
Todd you rock this rebuild, I have had a few bikes in my past Honda, Harleys, Kawasaki KZ 1000, even a Jawa for a first bike that I trashed while jumping a burned out abandoned 1959 I ford found in the woods. I always wanted to do a build on a Triumph so now at age 65 I am keep my eye on a few to buy. Will be looking at all these videos again in the future I am sure. THANKS FOR DOING THEM.
just bought a 70, busy stripping it down, thank god for this series.
You, sir, are a genius. Popped my case half in the oven for 10 mins at 140C (300F), and the outer race fell out as soon as I turned the case upside down. Didn’t even have to smack it on the wood. Thank you! :)
todd is the man.......................I have worked on triumps since 1980........hes a old school highly skilled mechanic.........
The crankcase in the grill worked great!!! LOL. I didn't even get to bang the race out, it fell out by itself when I set the crankcase down on an old tree stump I was going to use.
As a old Triumph lover/owner, enjoying this series.
Thanks Todd; for grabbing the later case and explaining the other breather system. Senior moment said I was going to call for a seal? Answered my own question thanks to you.
Removal of the crank outer bearing race ... coolest part, genius idea, and thank you for the idea. I'll be starting on my own '69 T120R some time next year. It's been in boxes in dry storage for 30 years.
Not only are you a great wrench, your also a great chef! 😂 Thanks for another informative video.
This video is a god send thank you! Bought all the pullers off u guys too to support
Even though I rebuilt my 68 last winter,I still enjoyed your video and learned new ways.Thank you.
great tips ,, i did the 300 degree in the oven and with a light tap out she came and slipped the new race straight in . good to go ..many thanks
Great video! Very helpful and easy to understand. Thanks for posting this series.
For those working on 71 and later "oil in frame" motors, some (if not all) have a 14 mm dowel pin that runs through the very front of the cases where the engine bolts to the front downtube of the frame. Mine (a 76) was so corroded I could not separate the cases without drilling this dowel pin out. I used a 1/2 inch bit suitable for drilling through steel and a lot of cutting oil. It left a very thin layer of the pin, which came loose with some heat on the surrounding aluminum.
(They sell new dowel pins for about 10 bucks a pop, so I bet this issues comes up pretty often.)
Another outstanding video professor Todd. Enjoying the tutorial!
More great info as I continue to tear down my wife's '73 T140. C'mon Part 6!!!! Thanks a ton Todd and Lowbrow.
Thanks Todd. I'm really enjoying this series.
Enjoyable vid again taking me back in time.
D/S brg race - mig a brace across. Allow to cool. Heat c/case and press or bash out. Quicker.
Just inspirational Todd ,am watching these because I’m about to purchase 650Thudrebird,
All the best ,Philip UK
Todd is the man.
I’ve got to get me an old Triumph that needs rebuilding!! 😂
Thank you, great well explained vids
Excellent info here
Great informative video ,can't wait for more
I remember the two inside screws you have to make sure you don’t forget.
40 years ago I had some weird sealer for machined surfaces made by Permatex and I used it on my cases and inner transmission cover. It made them totally leakproof but now I wonder if it’s going to let them come apart.
Impressive that you've had that beauty all these years.
I've always been told replacing the cam bushings are tricky, I hope you do it...it would be interesting to see what the issues are. Great series though. Thanks.
I will not be replacing the cam bushings they were within specifications it is a fairly easy job with the correct tools
I'm doing my 72' TR6R right now, I imagine the oven will work just as well, what kind of wine goes with this dish?
The Timed Breather Valve can be eliminated and substituted with a Reed valve. It will perform better.
Also you really should have been using a hand impact driver and hollow ground screw drivers.
Other than that I think your video's have been very helpful so far.
Don't forget to remove the pressure relief valve from the timing side crankcase!
Just in time..thnx
Thoroughly enjoying this as I prepare to dig into my 1966 TR6SR basket. I really want to do this myself, I've built a SBC, Ford Windsor and a 383 MoPar motor over the years and did the head/cam chain on my 650 Yamaha. All are still running lol. I'm 55 and want to ride this Trumpet I've had since 1992 before I'm too old to kickstart it. Any advice on getting a really stuck cylinder off? Crank turns and I have 3 hardwood wedges around the bottom of the barrel, up around 1/4 inch. Heat? And pound down with a hammer and block of wood while I tap wedges in s what I'm thinking. Any advice?
Nice
What year did Triumph completely switch from Whitworth to Standard? Thank you for these videos, they are great!
So that crankcase seal at 21:14 that you knock out... can that be changed without splitting the cases? Would oil spitting out of the sprocket area be the cause of this seal not properly sealing?
I'm loving these videos. How do you know you're at the point where you need to break the engine completely down and rebuild it? I'm looking at buying a 67 Bonneville that hasn't run in a couple years, but appears to be in decent shape and has low miles. It's one of those "ran when parked" deals. Owner claims it was running but it's been sitting in his garage for two years. I'm hoping a good carb clean, new battery and new fluids will get it going and I won't have to take apart the engine. Doing some work on the top end seems doable, but taking everything apart feels way above my pay grade.
that prob just needs the carbs cleaned out, gas tank drained and cleaned, and a new battery
Advice from a close friend that has been working on British bikes for 4 decades: "If you buy a British bike with the understanding it won't need an engine rebuild you're an idiot. If it doesn't that is a bonus".
I bought a running TR5T recently, it is now in a thousand pieces ready for the rebuild. Can't wait to get on it!
@@lowbrowcustoms how much would a reputable vintage Triumph mechanic charge to do a full tear down and rebuild like Todd did in this series? Ball park figure. Just curious.
@@daveco1270 depends on the mechanic really. Todd usually just getting parts he needs and doing one him self could be over a grand. then think hourly rate etc... probably a few grand if you had someone do it or more.
Must the transmission come out to split the cases?
I think I will need a bigger grill
Hi Todd, I have a 1972 T120v and on checking the torque settings on the flywheel bolts i found the bolt that holds the flywheel and sludge tube in place has stripped the threads on the crank.
Any suggestions to what i could do? Many Thanks for the vids keep them coming.
That does not sound good , sorry to say I have not had that problem before , if it is the bolt that locates the sludge tube you may be able to tap it out to one size larger and make a custom bolt that has the correct end . If that does not work it would be time to replace the crank .
Hi Todd, Many Thanks for the reply. I sent it to a Machine shop and as you said in your reply that's what they said they will do. I should not have any further issues with it.
Many Thanks again.
Stop talking just take it a part !!!!
This is a "how-to." So, he's showing, and talking. You can mute it :-)
Would these special tools needed for these triumph motors fit a BSA ?
Most are Triumph specific if you are looking for a certain tool let me know .