First post and soon-to-be owner of '65 CL77

R100 · Post by **R100** » Mon Jun 08, 2015 1:57 pm

rideordie wrote:Also, my next problem to tackle is freeing up the frozen pistons. I sprayed some Pb Blaster into the cylinders but so far that stuff seems to not be doing too much for me. I read that automatic transmission fluid works well? I've also heard gasoline too. Does anybody have a suggestion that they have maybe used to free up their pistons?

I read on another forum (BOXERWORKS) that 50/50 ATF and acetone performed better than any commercially available penetrating oil.
Have not tried it.
Probably should wear a respirator if you do, or at least do it outdoors.

rideordie · Post by **rideordie** » Tue Jun 09, 2015 8:55 am

Yeah that's what the mixture was! Thanks again R100!

I want to get new screws for the cases also since I don't see a point in reusing these screws I've had such a difficult time getting out. Is this the correct sizing?

http://www.ebay.com/itm/50-NEW-HONDA-6M ... d0&vxp=mtr

R100 · Post by **R100** » Tue Jun 09, 2015 9:13 am

That looks like a bunch in various sizes and some could probably be used, but you will be missing some.
Some for the left cover are quite long.
http://www.cmsnl.com/honda-cb77-super-h ... ml#results

rideordie · Post by **rideordie** » Sat Jun 20, 2015 7:57 pm

Hey guys!

Started tearing down my engine and so far it's going pretty decent (with the exception of a couple difficult screws) but now, while my frozen pistons are soaking in hopes to be freed up next time I work on it, I focused on the cam-shaft. Holy hell am I stuck...from diagrams I've seen in Bill Silvers manual it looks like there is a large lock-nut that separates the cam-shaft and pulls apart from either side, correct? Well the problem is that I cannot hold it still to keep if from rotating. Was I supposed to do this before removing the chain? Suggestions would be greatly appreciated...

LOUD MOUSE · Post by **LOUD MOUSE** » Sat Jun 20, 2015 9:58 pm

I use Vice Grips on the left side of the sprocket then I use a flattened chisel to drive the set nut clockwise until the right side cam is loose.
Then I loosen the nut on the left side and hit the end of the shaft to loosen the left side cam. ...................lm

rideordie wrote:Hey guys!

Started tearing down my engine and so far it's going pretty decent (with the exception of a couple difficult screws) but now, while my frozen pistons are soaking in hopes to be freed up next time I work on it, I focused on the cam-shaft. Holy hell am I stuck...from diagrams I've seen in Bill Silvers manual it looks like there is a large lock-nut that separates the cam-shaft and pulls apart from either side, correct? Well the problem is that I cannot hold it still to keep if from rotating. Was I supposed to do this before removing the chain? Suggestions would be greatly appreciated...

rideordie · Post by **rideordie** » Mon Jun 22, 2015 9:47 am

Thanks LM, will give it a try when I get some more free time to work on it...

malcolmgb · Post by **malcolmgb** » Mon Jun 22, 2015 6:45 pm

I used a wedge shaped piece of wood between the sprocket and the inside of the cylinder head casting to stop it turning, the teeth dig in the more it tries to turn, and then the flattened chisel the same as LM.