Can 2 cyc seals be changed W/O splitting case?

[loren6547]

Simple question I haven't found the answer to in searches...how do I pull the seals without splitting case? I'd like to change them without pulling jug off.
Thanks

[Ga_goat]

I've did it before by screwing a selftapping screw into the metal side of the old seal and prying it out with a prybar or screwbar , it may take 2 screws on opposite sides and be careful to stay away from the shaft with them .

[loren6547]

Thank you. I was hoping something like that would work. I really don't want to split the case if I don't have to. I'll post results in a day or so.

[loren6547]

Problem solved! I took off the flywheel to check the seals and I found the seal had come out. I scrunched it in and the engine popped right off on my test stand!! I am a happy guy! It has ~140 psi of compression and lots of vacuum! Almost sucked me into the carb!

Thanks for your help. This site is great!

[Workstead]

I am rebuilding my top end and in the process am changing the crank seals. I got the old ones out by using the screw trick but couldn't pry one side out so I used a pair of end cutting pliers and used that to pry out the old seals.

T H E N
I ran into a problem. When I put the new seals in I put them in too far. Now I think they are rubbing against the bearings making the crankshaft a little difficult to turn easily.

I think I'm going the have to get new seals and start over.

Moral of the story: Don't put the new seals in too far.

Clem

[loren6547]

Thanks, Clem.
Good advice. I just received the seals so I will looking into that today. Great timing!!

[Workstead]

Originally Posted by loren6547

Thanks, Clem.
Good advice. I just received the seals so I will looking into that today. Great timing!!

Speaking of timing.

Do you have a procedure for timing this engine? It is not in the engine rebuild section of the service manual. I only have that one rebuild section of the manual.