OK, I've played with plenty of FDs but my "own" 93 R1 is pissing me off.

Tonight I had an INSTANT exhaust leak. One moment I'm driving, next moment it has a large exhaust leak from the turbos.

I know exactly what it is, the same thing happened last year (reinstalled the turbos 9/11/01). Last year a bolt that holds the center section of the turbo to the exhaust side housing fell out causing a huge exhaust leak. I R+R'd the turbos, found the offending bolt missing, replaced it with a stock replacement and checked the torque on the remaining bolts on BOTH turbos. I found a couple of bolts that were also loose. I tightened all of them, reinstalled everything with new gaskets, the car worked great, no exhaust or oil leaks.

~5K miles and 13 months later the SAME thing happens again. I've never heard of this problem before and haven't seen it happen to any of the 12+ FDs I've worked on.

Anyone else had this happen to them? My car is pristine, 60K miles, original motor and turbos, lightly modded.

Jeff

 

I had one start to back out on me once. I cought it before It got real lose though. A little locktite and no more loose studs.

 

Jeff,

The person i bought my car from had that same exact problem you did. He had an exhaust leak and thought the turbos were cracked, so he went to remove the turbos and found one of the bolts completely out! He found the bolt took the turbos out replaced all the gaskets and tightened it back up. No problems since my car has 50,000 miles original motor and turbos no mods at all. He did the turbo removal at about 35,000 miles.

 

Same **** happened to me. I all new gaskets and then went to pull the turbo's out and all the old gaskets were intact! I almost **** myself trying to find the leak...then I spotted the 2 bolts missing...

Locktite them bitches...

 

No, never had a problem with the bolts coming loose. Gaskets failing and carbon seals leaking ... yes.

Yeah, I agree ... locktite and a little elbow grease.

 

Thanks. At least I'm not completely alone out here. FYI, I went nuts trying to find the leak the first time too, I removed the turbos, saw a small leak in a gasket, reinstalled turbos, same leak! F*CK, remove turbos again and inspect really, really, closely. I saw the bolt missing, could have been installed without removing the turbos...

OK, so what type of Locktite do you guys use? It seems like the Locktite that I'm used to using will burn up under the temps seen by the turbos. At work we use several types of Locktite, don't know the numbers off hand but we have wicking permanent, blue (242?), etc. The wicking type is permanent, ie: the bolt breaks before it comes out, unless you heat it...

Jeff

 

<bump>
What type of locktite do you all use?

-M

 

I had a bolt fall out on mine in the same place. I thought it was the check valve in the Air Control Valve, so I fiddled with that for a while and the noise was still there. I finally pulled the turbos and found one bolt that had fallen out of the turbos and was just sitting right there on the manifold.

Even if the Loctite burns, it will probably leave a gooey enough deposit to keep the bolt from backing out. I didn't try it, but it makes sense.

-Max

 

When i removed my turbo's for my non-seq conversion, I noticed that one was just just a couple turns away from falling out, and anouther was on its way out too.

When dealing with peripheral motors I noticed you had to go throught the engine/transmition bays, and retighten everything about every 3 months. Rob at Pineapple said it was due to the harmonices(sp? I'm not the best speller!) of the engine at hi rpms. He said to tighten it once, the if it does it again, safety wire it. Thats what I plan on doing. CJ