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Join Date: Jan 2006
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Turbo 3.6 exhaust sealing with B&B headers: ideas??

My '91 turbo with retrofitted '94 T3.6 engine will not seal for squat on the #1 cylinder: gonna remove this weekend & reinstall again (3rd time) in effort to seal this exhaust. I Have the correct (supposedly) '94 sealing rings for the exhaust & even used a little high-temp ATV but it still leaks.

What are other people using?

Mark

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Old 05-21-2012, 08:40 AM
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On a related note: I have a small leak in my copper/brass/bronze turbo oil return line (as seen in this picture: I can solder that correct?)

Mark
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Old 05-21-2012, 08:43 AM
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Hi Mark,

You can also take the factory scavenge line + adapter + B&B AN line assembly and replace it all with a single braided -8AN line or piece of flared 1/2" hard line. The scavenge pump inlet is M16x1.5mm, and an 8AN/M16 adapter is not uncommon at hydraulics shops.

We have seen some 965 engines have sealing problems at the exhaust flange, and found running both the 965 sealing ring and the 930 exhaust gasket resolves this. Not perfect, but it works.
6x 965 sealing ring = 930.111.223.00
6x 930 Gasket = 930.111.191.13
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Old 05-23-2012, 10:14 AM
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Ok thanks again Chris, I'll try both this weekend: gotta fix, now that the exhaust is back on the leak sounds 3x as bad. :/

Makr
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Old 05-23-2012, 10:18 AM
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BTW car's a bat-out-of hell already; just gotta fix some leaks & such before & dyno. Most of the time it'll skate around through 2nd gear: quite fun...and that's still at .75 bar: I'm running a bit rich but won't raise the boost until I get my wide-band installed & the WUR tuned: good chance I'll run out of fuel before I surpass 1.1 bar or so. We'll see!

Mark
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Old 05-23-2012, 10:23 AM
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Oh, which goes against the head: the sealing ring or the 930 gasket??

The ring is for the Turbo 3.6 right? I recall a difference between the 3.3 & the 3.6

do you recommend using a high-temp silicone to help "secure them" as you install?

Mark
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Old 05-23-2012, 12:14 PM
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Ring goes into the head.
Gasket on the header flange.
A dab of the exhaust-specific sealant is okay provided it sates on the label it is safe for O2 sensors.
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Old 05-23-2012, 12:51 PM
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I lucked out.

Why not: I loosened the entire exhaust, lowered down about 1/8" or so, then fully tightened up the #1 (leaking cylinder) & then tightened up the other 5, evenly, analy.

Sealed!
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Last edited by MarkRobinson; 05-29-2012 at 11:40 AM..
Old 05-29-2012, 10:49 AM
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Quote:
Originally Posted by MarkRobinson View Post
I lucked out.

Why not: I loosened the entire exhaust, lowered down about 1/8" or so, then fully tightened up the #1 (leaking cylinder) & then tightened up the other 5, evenly, anally.
Sealed!
So how were you able to do this (analy) as it sounds quite uncomfortable? Wait, I don't really want to know!
Old 05-29-2012, 11:36 AM
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try not to picture it. :/

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Old 05-29-2012, 11:40 AM
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