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Grenadiers · Posted: Sat Aug 10, 2013 8:10 am Post subject: Rebuilt Turbo query.

Just got back my '79 euro turbo with the 6.10 hotside and the rebuilders sent back two gaskets. One for the pressure side and one for the drain side. I still have a Vitron o-ring for the pressure side, and a new black o-ring that Dan supplied for the drain side. However, I have oil seepage problems on the drain side with this o-ring and am wondering if doubling up with the supplied gasket would make a dry difference?

Here are some pics, turbo was rebuilt by Majestic Turbo in Waco, TX. 400 bucks delivered.

Goes in this car~!

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'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

I would do one or the other but not both. If you use the paper one I think I would use anaerobic sealant on it.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Did you use specified torque values on the fasteners? I'm using the drain seal gaskets with OEM spec torque and no issues with leakage. I do, however, continue to get minor seepage at virtually ALL of the banjo bolt fittings, even after using factory torque + blue loctite on the crush gaskets. I have not found a way to prevent those from seeping. (There are four of them: one on the top of the filter console that feeds the turbo; the two oil cooler lines, and the main bolt for the filter console itself.

Also, the upper feed line has a copper crush washer that can seep if you don't replace it. Setting torque on the compression fitting is guess work because there's no way that I've found to get a torque wrench on it. These connections have been the source of all my oil leakage frustration on new builds, not o-rings.
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erstwhile owner of just about every 924 variant ever made

Grenadiers · Posted: Wed Aug 14, 2013 4:42 am Post subject:

I reused all of the aluminum 'o-rings' on the oil cooler lines, and the big kahuna, on the oil filter adapter plate. For some reason, this time around, nothing is leaking after I put the new turbo in. However, that can change over time and with engine vibration, I'm using the Vibratec(?) engine mounts. Just have to keep an eye on them, and retighten as needed.
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'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

After fighting banjo hell for years, I finally defeated them on my most recent install. In addition to abandoning Loctite in favor of Permatex anaerobic sealant, I also polished all sealing surfaces with a soft wire wheel on my Dremel until they were operating room shiney, including the undersides of the bolt heads.

Remember, there are four sealing surfaces per banjo fitting!

Also, DON'T RETIGHTEN these fittings after you have put the correct initial torque on them. This is guaranteed to gall the crush washer and make leaks worse (AMHIK).
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3