Another Oil Leak. Oil Galley Plugs?

[lucianosanchez]

[djkeev]

WBX excessive end play is usually a non issue.

Yes, you can literally move the crank forward and back.

Dave
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[IdahoDoug]

If you can move it back and forth once you've put the shims in and bolted it up, its got excess play. I literally just did this yesterday and I'll try to describe it.

Freshly machined block/new bearings. With all shims out, I could move it about 1/16th inch (using measurements you can relate to - I was measuring to the thousandths). With two shims in (large one closest to block) plus the washer with the bent tang against the block, I could barely move it - about .016" which is barely noticable. Then when the 3rd shim is installed, I was in spec but could not feel any movement due to the oil between them for install but it was correct factory spec.

So, a 1/4" of movement WITH the shims in is kinda huge and would definitely explain why you have leaks recurring.

Doug
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[lucianosanchez]

That answers my question about the end play. Doug, the "1/4" end play I was getting was with the shims off. The end play with the shims on is much less. I was just concerned that I had too much play with the shims off but that sounds normal according to you.

So I'm still not 100% sure why I continue to get leaks and it sounds like I'll have to redo the whole thing .

1. End play set correctly
2. All three shims in
3. Flywheel oring is in
4. Felt ring is in
5. GoWesty's main seal
6. Seal sits flush with the case

It sounds to me like I am installing everything correctly right?

If this is accurate the leak should not be coming from the seal. So it leaves the plugs right? What about the nuts and bolts that hold the case together? Could I tighten those up to be sure? I didn't want to do it while I was in there because I didn't know. Should I just JB weld all the plugs to be safe?
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[Wildthings]

You are putting the flywheel o-ring into the groove inside the bore of the flywheel aren't you? Some people don't realize there is an old o-ring in the groove and just set the o-ring into the bore where it gets squished flat.

Places the case can leak besides the rear main seal.

-Cam plug
-Case seam
-Oil galley plugs
-Cracks in case

You can also get leakage from the transmission input shaft seal.

[lucianosanchez]

[Wildthings]

I think the 8M bolts for the case get torqued to something like 15 ft*lbs.

It is really hard to figure out where a leak behind the flywheel is actually coming from. You may just have to live with it if you are unwilling to split the case. Eventually your clutch is likely going to start to chatter from the oil though if the leak continues.

[marcotheturbosteamengine]

Have you checked if the oil can drain back to the sump? The is a small drain at the bottom and an air gap at the top, theses must be totaly clear, if you have had the engine rebuild, sometimes there is too much sealend in them galarys and it wont let oil return fast enough, use compressed air to blow through each one and make sure there totally clear.

[lucianosanchez]