Oil leak under lower timing cover

[wolfsburged]

Hey guys/gals.

About 1000 miles on the rebuild, I'm getting a significant pool of oil under the passenger side of the motor, and I can see it is wet under the lower timing cover. It also has run along the edge of the pan and created drips around the edges, but I have resealed the pan and I'm pretty confident those are just runoff of this primary leak.

Tonight I was able to strip the alternator, ac compressor, and remove the lower timing cover. Did not touch timing belt yet, will take that off tomorrow.

There was definitely oil on and around the seal carrier plate for the front main shaft seal. I could see through the holes in the intermediate shaft pulley and could at least tell that the intermediate shaft seal is bone dry.

There was no oil above the intermediate shaft, however there was some oil just above the upper edge of the main seal carrier plate. I can't tell if it has dripped down from where the body of the intermediate shaft seal carrier touches the block, or if it is from the main seal carrier.

Anyway looks like I may have to try to redo the main shaft seal and its carrier plate. Have new seals on hand in case.

Any tips on doing this again so that this is the last time? Also any ideas on holding the crank to undo the crank bolt if needed? Last time I had the pan off and just shoved a hammer in to stop the crank rotating. Would prefer not to drop the pan this time as I finally think I got it sealed up good.

[theman53]

Libby's home made tool

[nathan_b]

I went through an identical scenario.

Was an oil galley plug leaking, the one to the upper left of the intermediate shaft. replaced the plug and motor is bone dry 10k later.

[bajacalal]

Using incorrect bolts (too long) on the crank pulley will punch a hole in the front main seal and cause a major leak.

[wolfsburged]

Well got it all torn down, I forgot to install the o-ring behind the intermediate shaft seal cover plate to block. New seal install, belt back on and tensioned. Resetting timing tomorrow and hopefully good to go.

Did see some oil coming down off of the turbo drain line. Got a half turn on one of those bolts, hopefully taken care of that too.