bureau13

I previously replaced the other three caps, but I could never get a tool on the bolt head for this one. Then I saw a post about those Mountain (formerly EZ Red or something?) long flex-head ratcheting box wrenches, and someone speculated that the 10mm might work for this, since the inner part that goes over the nut protrudes a bit. So why not, I bought one, and I am happy to report that it does. Initially I was thinking it was long so I'd do it from below, but it's actually super easy now from the top with the air box removed.

Interestingly enough, this one was the two-piece seal (all the rest were one-piece when I took them out) so someone has replaced this one before. Now, with the one piece seal, it's easy to stick a screwdriver under the part where the bolt goes and pry it out. However, for the two-piece, that whole piece just comes off with the bolt, and you're left with a flat round disc with very little to grab. I was wondering how people are removing those two-piece cap seals?

My solution which is in progress is to glue the retaining piece (that the bolt goes into) back onto the round seal. It's still hardening so I haven't tried used it to pry out the seal yet, so we'll see. I'm sure there are better ideas though?

(Yes, I'm working on anything I can find to avoid the clutch issue lol)

bureau13

OK, well my solution failed. I was using super glue. Maybe something like JB Weld would work? I don't think I have any, but I can get some of course.

I think on the front ones I could get a small flat bade screwdriver in and work it out, but there's just no room. Curious if there is some tool that people have found for this.

bureau13

FWIW I cut into the old seal and then levered it out with an angled pick.

Here's the thing... With the car's nose in the air i had quite a bit of oil on the ground, which i assumed was a rear main seal. Now, i don't think so. The rear main seal area that i can see looks dry. However, that rear cam seal looks like it's still leaking. I'm guessing this was a problem before, given that is the one seal that had been changed by a PO. Any thoughts? Should i use a thin layer of silicone sealant on that seal?

Mrmerlin

Note it’s possible that if these seals were replaced the cam end caps may not have been properly installed with loctite 574
thus the oil willl leak out the side of the head
the only way to properly fix it is to remove the cam cover
Note it’s also possible the cam cover gasket is leaking due to a rough surface
if you remove the cam covers you should consider having the sealing grooves grit blasted

bureau13

Thanks Stan. That may be what is happening.

bureau13

OK, now that my clutch work is finally done, I need to start thinking about addressing the leak described above. I suspect it is as Stan suggested, unfortunately some of the terminology sounds similar and I'm getting confused. Is there a good pictorial thread of someone doing this job, by any chance?

From what I've been able to glean, I need to remove the cam cover, and then there is a cam end cap on the firewall end that is different from that hocky puck end seal thing, and this cap needs the Loctite 574. Is this also the thing that needs the triple square bit to remove? I suppose I would need a cam cover gasket as well, and it gives me a chance to at least inspect the chain tensioner pads. If I'm talking about the right part of the engine, anyway...

Anything else I should plan on doing while I'm in there?

skpyle

Hello bureau13:

It is not another seal, but the rear cam bridge. Meaning the two rear upper cam bearings/cap in one piece. It must be removed to properly install the cam end seals. Then the bridge must be cleaned and resealed with the Loctite 574.
My 1986.5 did not use the triple-square 'cheesehead' socket head bolts for the cam covers. Just plain old allen hex socket head bolts.
Yes, you will need a new cam cover gasket.

Please refer to my meandering thread here about chains, tensioners, and camshafts. It is long, windy, and I screw up alot. But I think you will find helpful information:

https://rennlist.com/forums/928-foru...s-as-well.html

Good Luck!

bureau13

Awesome, thanks!

Mrmerlin

87 low oil pressure Update lost the plug

bureau13

Thanks for that Stan. Trying to digest all of that. I think the first thing I need to do is pull the cam cover and take some pictures of what is inside. It's all still very confusing to me, but as I found with the clutch, once you're actually looking at the bits and pieces and see how they fit together and what they're doing, it makes things more clear. Plus I can post pics and get some feedback :-) Might be a little while. Car is actually driving really well right now....