special tools & how to improvise....

[ME 109]

Check that guide ring O.D. for wear as it can be the cause of the leak. I know.
The guide ring O.D. can be 'ground' or 'turned' to remove any imperfections that may cause a leak.
I had my guide ring 'ground' about 15 years ago after replacing the seal without success. Leak stopped.
I had the same guide ring 'turned' about 5 years ago. No leaks today.

[Matt]

in my case there wasn't a leak. I'm rebuilding a bottom end and everything is getting replaced. Hopefully the guide ring wont need such a thing but thanks for the info, never heard of anyone getting the rear main seal surface refaced....

[ME 109]

never heard of anyone.......

My middle name!

[bbelk]

If you have the flywheel off, I think for any reason, there is a danger of the crank moving forward. It takes a few minutes to block it. Usually people put something fairly small that plugs into the forward hole on the alternator bolt so it sits maybe 0.5" proud of the bolt, and then slip the engine cover back on until it's snug. You could also rig up a 2x4 that is held back by wrapping roping around the board and the jugs. If the crank moves forward, you'll not be having a fun day!!

Kurt in S.A.

Something like this:



But this rig will still NOT ALLOW YOU TO USE THE CRANK as a fulcrum in prying out the seal.

[Matt]

thanks for the help everyone, I haven't wrenched on Airheads seriously in a some time.

[enigmaT120]

Often an old BMW part was used to make a tool. I have only used a few of Ed's tools, but there were all good.

So that's what happened to them! I was blaming my wife or the wood rats.

[Chuey]

Often an old BMW part was used to make a tool. I have only used a few of Ed's tools, but there were all good.

So that's what happened to them! I was blaming my wife or the wood rats.

Is your claw hammer missing?

Chuey

[melville]

Often an old BMW part was used to make a tool. I have only used a few of Ed's tools, but there were all good.

So that's what happened to them! I was blaming my wife or the wood rats.

Is your claw hammer missing?

Chuey

I started in the bike industry under an older Schwinn trained guy. He'd not permit claw hammers in his presence. "We're not wood butchers, son." Adjustable wrenches were called "Crescent hammers."

[Major Softie]

I started in the bike industry under an older Schwinn trained guy. He'd not permit claw hammers in his presence. "We're not wood butchers, son." Adjustable wrenches were called "Crescent hammers."

So, you were metal butchers...