Mr_pharmD

iTrader: (48)

This crap is driving me crazy. After I installed a new long block and reused my old timing cover, chain etc. I can not get rid of this leak. It's at the bottom corner of the driver side. See the pix bc I marked it. Any information would be great bc I have no idea why is it leaking. It's like drips but it adds up and I can see oil on the oil pan and floor.

Dynosty

iTrader: (27)

The covers are extremely sensitive to prep when install and good silicone. I spend extra time on all of the mating surfaces of a VQ build. How thorough were you in this area? Are there any pry marks there etc that could possible create a bad contact surface?

Mr_pharmD

iTrader: (48)

This was the second attempt. I took a raiser blade and took all the crap off the timing cover but that is it. I even use the red expensive sealant from nissan instead of the grey one and still it leaked from that same place.

I'm also having a real main seal leak. This was also the 2nd time it leaked.

Dynosty

iTrader: (27)

We razor/screwdriver the big stuff including the grooves thoroughly, then use fine pads to clean it back to 100% like new, degrease, degrease again, then apply sealant. TQ in steps in sequence by FSM spec. Same goes for rear main.

JET MECH

iTrader: (2)

dose the bolt that goes into that portion of the timing cover go into a wet cavity or dose the bolt bottom out into the timming cover case? have you tried installing the bolts in that area with sealant applied to them?

Mr_pharmD

iTrader: (48)

So there's no oil ring around that area that could cause the leak... just need better installation?

Mr_pharmD

iTrader: (48)

naw, the bolts arent leaking. We use silicone also on the bolts.

I have noticed that when I touch the area that is wet, there is a lot of excess silicone that is danging but still attached to the timing cover and I pulled some off. Is that normal or could the silicone have came out before it was bolted down?

JET MECH

iTrader: (2)

generally when i assemble parts together wet with sealant i let them stand for a bit to let the sealant get tacky/semi dry before mating the parts together. i would recommend if and or when you pull the timming cover back off check that area for a possible hairline crack and or inspect the mating surface area with a straight edge to see if there may be some distortion due to the fasteners being over torqued. also check for tooling marks, screwdriver/prybar indentations.