BSA A65 post blow up repairs 6 Autopsy and the full scale of the blow up damage revealed.

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Paul Henshaw's classic motorcycle channel.

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@Cobra427Veight 10 ай бұрын

Wow, it must have been at 8500 rpm !

@martinowl 10 ай бұрын

Love watching the investigative vids. That Conrod really has smacked the case with some force!

@ChasDean-d9h 10 ай бұрын

I agree with Cobra - that engine looks like it was revving pretty hard to inflict that sort of damage. But stranger things have happened, as they say. When I rebuilt my '70 A50, even though it was fitted with the later rods, my research indicated that re-using 50 year old alloy rods might be a bad idea. For starters, I had to drive the rod bolts out, which I thought was a warning, and prompted the whole rod replacement saga. They might've been OK... Regardless, far be it for me to try and tell vastly more experienced people what to do. Just offering my two bob's worth.

@norsehall309 10 ай бұрын

G'day Paul, after 4 years since you last worked on this motor their is no warranty comeback and l hope you get a good price for scrap alloy, what an absolute mess, l have told mates in our motorcycle club too watch your videos and l will get feedback whether any have had this much damage to a motor, cheers mate, Neil 🤠.

@VinceJones-uj3cm 10 ай бұрын

Looks like it was in very good condition before the blow. 😢

@hermangibbs8163 10 ай бұрын

Thanks Paul.

@andrewslattery403 10 ай бұрын

Now that's what I call an eccentric camshaft! That must have gone with a very loud bang, so I can't help wondering if the rider has got his trousers clean yet?

@robmcl9819 10 ай бұрын

Had a 350 Honda twin do similar when it dropped a valve at high revs back in my youth.

@petershepherd6889 10 ай бұрын

I knew someone who had an 1972 A65 lightning and it managed to snap a crankshaft 🤔

@a65builder67 10 ай бұрын

hi Paul i don't know if your going for new old stock rods but if not try and get the later rods and they will be shot peened, 71/1112 r3r but be careful triumph use the same rod number but they have a smaller big end eye, anyway take care Paul, Adrian.

@anthonyhull2998 10 ай бұрын

It looks like it has had the oil changed at regular intervals and the damaged looks like the rod has snapped at high revs hence the brutal damage. By the cleanliness of the inside of the cases I would imagine the sludge trap is clean ? Fit the best rods to cope with future use ..... If racing carillo ..... Sunday tootling around B roads use the best alloy one's you think will do.

@peterwilson8797 10 ай бұрын

Big problem when these parts are no longer available. Lucky to find a spare set of cases.

@fredbailey2076 10 ай бұрын

37 sets available on the first page on ebay right now

@peterwilson8797 10 ай бұрын

@@fredbailey2076 As long as they are ok and actually exist. I got my fingers burnt a while back.😭👍

@fredbailey2076 10 ай бұрын

@@peterwilson8797 ime sure most of them you can call round and pick them up some were only one side and basically useless though

@MegaTubescreamer 10 ай бұрын

the alloy will weigh in for scrap so once its melted down no one would ever know 😂👍

@robbie2awesome 10 ай бұрын

crazy, would really love to know what happened there.

@robertcovell2787 10 ай бұрын

It seems to me that magnitude of damage indicates a downshift at too high RPM because it would require the inertia of the weight of the bike to create that much wallop.

@dufus7396 10 ай бұрын

A magical savage somewhere is thinking "I can straighten that camshaft" ...and he probably can🍺

@paulhenshaw4514 10 ай бұрын

I am not that magical savage ...

@noeldoran8884 10 ай бұрын

What a big bang Paul good luck with it mate and Happy New year

@fredbailey2076 10 ай бұрын

think of the cam as variable valve timing

@bananabrooks3836 10 ай бұрын

Ha ha, l had to go back to see what you meant.

@peterparsons3297 10 ай бұрын

so what the hell caused that, i had a A65 Clubman it was never ridden with care and the only failurs i had was timing side bush

@4418CARLOU 10 ай бұрын

May have changed down at high revs instead of changing up. I know somebody who blew their car engine doing that on the motorway. They have an auto now!