Replace oil seals in Mitsu G18 (where, cost?)
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Joined: Apr 2004
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From: Middletown, DE, USA
Replace oil seals in Greddy 18G (Mitsu turbo) - where, cost?
I'm near Philly, and am looking for a reputable/skilled shop with experience in rebuilding turbos. Diagnosis leads us to believe the oil seals in the 18G are bad, allowing oil to go pretty much everywhere - in the intercooler, the intake, the exhaust...it's even blowing up the air filter intake tube.
Perhaps these seals were bad before, which could explain how the motor blew up.
For some background, my car (set up and previously owned by my buddy RedTeg95) is a '95 Integra GS-R with a Greddy turbo kit. Lots of parts/goodies; the car was dyno'ed at 250 whp with ~9 pounds of boost, and is a daily driver. Shortly after I bought it, the engine lost compression in two cylinders. A subsequent tear-down revealed some damaged rings and pistons...and cylinder walls.
The motor was pulled, and I sent the block to Earl to have it resleeved by Dan Benson (beautiful work, BTW!). I ordered CP forged pistons (9:1) and Eagle rods. The new sleeves are 84mm, giving the engine a slight bump up to 2.0 liters. I had a valve job done on the head, and we put everything back together with new gaskets, oil and water pumps, new belts, etc. When finished, it fired right up and sounded good, thanks to Bryan and Mike!
However, the first time I put the car on the road, it started blowing smoke out the exhaust, and shortly it was down a cylinder (or two
). I parked it and let it sit for a few hours while I went back to work, and when I fired it up that night, it was running on all four cylinders again. Obviously oil had fouled the plugs (all four turned out to be really dirty), but ran off while it sat. This indicated oil was coming through the intake, and pulling some plumbing out for inspection proved the theory correct.
Now we're just trying to verify where the leak is. Through process of elimination, we believe it must be the seals in the turbo. Thus my question about where to go to have the turbo serviced and the seals replaced. Is it possible to do it ourselves with this unit? If not, who do you recommend to do the work...and what should I expect to spend (ballpark)?
P.S. Anyone else had a similar problem?
Thanks!
Modified by TAZorich at 6:03 PM 7/23/2004
Perhaps these seals were bad before, which could explain how the motor blew up.
For some background, my car (set up and previously owned by my buddy RedTeg95) is a '95 Integra GS-R with a Greddy turbo kit. Lots of parts/goodies; the car was dyno'ed at 250 whp with ~9 pounds of boost, and is a daily driver. Shortly after I bought it, the engine lost compression in two cylinders. A subsequent tear-down revealed some damaged rings and pistons...and cylinder walls.
The motor was pulled, and I sent the block to Earl to have it resleeved by Dan Benson (beautiful work, BTW!). I ordered CP forged pistons (9:1) and Eagle rods. The new sleeves are 84mm, giving the engine a slight bump up to 2.0 liters. I had a valve job done on the head, and we put everything back together with new gaskets, oil and water pumps, new belts, etc. When finished, it fired right up and sounded good, thanks to Bryan and Mike!
However, the first time I put the car on the road, it started blowing smoke out the exhaust, and shortly it was down a cylinder (or two
). I parked it and let it sit for a few hours while I went back to work, and when I fired it up that night, it was running on all four cylinders again. Obviously oil had fouled the plugs (all four turned out to be really dirty), but ran off while it sat. This indicated oil was coming through the intake, and pulling some plumbing out for inspection proved the theory correct.Now we're just trying to verify where the leak is. Through process of elimination, we believe it must be the seals in the turbo. Thus my question about where to go to have the turbo serviced and the seals replaced. Is it possible to do it ourselves with this unit? If not, who do you recommend to do the work...and what should I expect to spend (ballpark)?
P.S. Anyone else had a similar problem?
Thanks!
Modified by TAZorich at 6:03 PM 7/23/2004
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