Found my oil leak - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 7 (permalink) Old 12-29-2009, 09:50 PM Thread Starter
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Angry Found my oil leak

Engine side cover. My engine has always been relatively oily on the drivers side. I ruled it out to the blow by being blown over there by the fan. It just gave loose about 2 weeks ago. Now I just have it parked.

Now who can tell me truly how much of a [email protected] it really is to do. I can barely see a small part of it so I'm guessing it will be no fun at all. Can it be done without removal of the IP? Once I cleaned it and found the leak I just went in. Once in a while I used to change the same gasket on 12v motors, but they were natural gas engines. No IP and a huge bracket in the way. Still they were no fun, but doable without taking apart anywhere near the stuff I saw when was just in there.

(Quote: M123KT-450) "That's what happens man it's hard to Damage steal with tin foil ! "
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post #2 of 7 (permalink) Old 12-30-2009, 10:46 PM
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Are you sure that is the problem? Could be the seal between the ps and vac pumps.

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.
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post #3 of 7 (permalink) Old 12-31-2009, 12:47 AM Thread Starter
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Positive. Cleaned everything up and as soon as the engine started there it was from the only piece of the side cover I could really see. It looked like it was coming from a plug in the block, but when cleaned up I could see it so very clearly.

(Quote: M123KT-450) "That's what happens man it's hard to Damage steal with tin foil ! "
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post #4 of 7 (permalink) Old 01-01-2010, 12:41 AM
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Bolts tight?

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.
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post #5 of 7 (permalink) Old 01-01-2010, 05:20 AM Thread Starter
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Don't know. Forgot these engines had that cover. Couldn't even see it just a part of it, so if I'm gonna take enough apart to check the bolts, I'm gonna do the gasket. 230k, I think it's time to do a side cover gasket. The other thing is it is just pouring out. For that kind of leak, if the gasket is good, I'm lucky if the loose bolts are still there. Not bustin on ya man. I used to do these cover gaskets on 12v motors, but they were natural gas powered. No injector pump! Had the ecm on the engine, but you still didn't have to take near as much apart to get them done. bmoeller - can you help me out and tell me if there i a silicone gasket offered for this cover? The ones I used to do were black rubber type. I can't say for sure if the gasket has ever been changed. I will say that if it is the original, I would like to get one from Cummins, but really don't trust that the one made now is going to be the same quality as the one from 2001.

(Quote: M123KT-450) "That's what happens man it's hard to Damage steal with tin foil ! "
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post #6 of 7 (permalink) Old 01-01-2010, 05:41 AM
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I know you ain't bustin' my chops. I try to rule out the cheap and easy first. Amazing how often that can be overlooked. (Plus, not knowing everyone's skill level, I'll throw out any possible solution that fits.) I've had plenty of leaking gaskets over the years (typically valve cover) on various engines. I always try to check the bolts first. Most of the time that takes care of it.

'Fraid I can't answer the gasket material question. Never changed one. I know the grey v/c gaskets on the 12v engines are silicone...........

How much blowby, if any?

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.
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post #7 of 7 (permalink) Old 01-02-2010, 09:04 PM
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that side cover would be the tappet cover.

My truck:
1999 Dodge 24 Valve Cummins
P pump conversion with a 180 pump
Pump doesn't have a fuel plate, 4g springs, & full cut dv's, no afc, ect..
.093 fuel lines
Air Dog 165
custom ground cam
mahle pistons with .050 valve reliefs
balanced rotating assembly
8 x 11 injectors
ported head with 60lbs valve springs and 12mm studs
Pro 52
Polydyn header
stage 5 east coast diesel bullit automatic trans.
triple disk dunrite torque converter
4.10 gears
klienn train horns
Nubers with the twins and without header
603hp 1157tq
12.7 quarter mile (then ht3b blew again)
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