Pics, missing bolts, coolant leak, oil leak...

Post by **wheelsup** » 23 Mar 2010, 16:18

No PTC just a flame trap that is completely clear, not sure wth is going on. Call your dealer for the part numbers and then order from FCP I doubt shipping is that much.

whoa · Post by **whoa** » 23 Mar 2010, 21:43

wheelsup wrote:I'm 130 pictures into a engine/tranny pull, I'll also include pictures replacing the RMS and tranny input shaft seal. Y'all can learn from my mess-ups!

Regarding the RMS leak, mine was/is slowed down considerably when I pull the dipstick out. There is pressure from somewhere, no idea where it's not the PCV system as it's clean.

Hey wheelsup, I'd suspect the valve stem seals for the pressure. For me, PCV repair did not eliminate positive pressure at dipstick and filler cap, but VSS replacement did.

Looking forward to your write up!

And what do you mean about the rear motor mount leaking. How can a motor mount leak oil?

I'm more than just curious, because my 850 Turbo developed a leak in the rear-engine/tranny area a week ago. It had been seeping out of the weep hole between engine and tranny (auto) housing very slowly for months (tell-tall marks on the car, but no drips on the garage floor), but suddenly it got a lot worse (after a PCV fix, and RIGHT after adding seal conditioner to the oil, perhaps coincidentally). Anyway, it doesn't really look like it's just coming out of the weep hole, so I'm not yet convinced it's RMS, but I don't have any better guess either. . . I'm not all that averse to putting in a weekend on a stupid seal, but I do want to be sure that's the problem!

Pics of my leak(s):

http://s77.photobucket.com/albums/j66/9 ... eak001.jpg

Mark

caymran · Post by **caymran** » 24 Mar 2010, 07:53

The dealer down here said that the trans bell housing bolts are a Metric 10 diameter, 40mm length, he's not sure of the pitch, but he guesses 1.5 or 1.75. The motor mount bolt he does not know. Says it may be the same, but I could pull a front motor mount bolt, and they should be the same. I'll let ya'll know how it goes. Once I get the engine up a little and on the mount, I should be able to better see my leak

C@lvin · Post by **C@lvin** » 24 Mar 2010, 15:13

Whoa, I wouldn't rule out the RMS, but it also looks (at least toward the front of the car) like you've got some coming from above. Have you checked your rear cam seals? Those are pretty easy to get to and replace......

whoa · Post by **whoa** » 24 Mar 2010, 15:42

Thanks, Calvin,

I replaced all the cam seals this weekend as part of a valve stem seal job. They were all dry except the rear exhaust one seemed to be a little oozy. I wouldn't have thought it was remotely bad enough to do this, though. And now that it's been replaced it seems dry there too. I'm going to start with the cheap and easy step of replacing the turbo return gasket and o-ring and see what happens.

Mark

C@lvin · Post by **C@lvin** » 24 Mar 2010, 21:14

You've probably already thought of this, but after you replace the turbo gasket and o-ring I recommend you get some engine cleaner and clean off as much of the oil as you can and then keep a close eye on it to see if the leak returns and if so, it will be much eaiser to see where it's coming from.

Let us know how it all turns out....

whoa · Post by **whoa** » 24 Mar 2010, 21:20

Thanks, yes, I plan to get it steam-cleaned. At the moment, though, I can't figure out how to get the oil return pipe out. There are instructions at IPD that say to twist it (after removing the allen-head bolts. But no amount of twisting seems to be able to free the thing---the top flange is prisoner of two thin metal pipes, one of which I assume is the oil inlet.

C@lvin · Post by **C@lvin** » 24 Mar 2010, 21:24

hmmm....I sold my 96 turbo a few years ago before becoming a serious DIYer. I had that same trubo leak repaired at the shop - wish I could help you. I'll bet some of these other guys will jump in and help you. Jablackburn and ozark lee both have turbos.

whoa · Post by **whoa** » 24 Mar 2010, 22:11

Ah, I just pried the steel lines a bit and then it was a five-minute job.

The old seal, unfortunately, looks fine: it's a green one, much like the dipstick-to-pan o-ring; it looks and feels new. The new one is orange, which I read on Bay13 is the old style. So I may have just put in an older seal than I took out. Anyway, it does feel a little tighter, maybe. I'll get the whole mess cleaned up, try to watch it leak, and report back.

Thanks!!

caymran · Post by **caymran** » 29 Mar 2010, 12:01

So, the motor mount bolts (3) are M10 x 1.50mm pitch x 40mm (far left).
And the I don’t know what it’s for in the transmission bolt is a M8 x 1.25mm pitch X 20mm (center).
And the Transmission Bell housing bolts are M12 x 1.50mm pitch x 40mm (right top).

If anyone knows what the middle arrow is pointing to (other than a threaded hole in the tranny), please let me know...
I'm going to plug it with a bolt for now, but it would be nice to know if I need just a short one to plug the hole, or a longer one that threads into something further back.

Also, when I got the motor bolted into the mount, I saw that the turbo coolant intake line (part num: 6842190 was actually stamped into the hose!) was cut through from the turbo sitting directly on the mount. Had to order it, thanks FCPGroton.

Thank you everyone.