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Oil In The Coolant, No Oil In The Engine....

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Oil In The Coolant, No Oil In The Engine....

Postby 91dodgecummins12v » Wed Jun 24, 2009 10:23 am

hey guys, just wanted to check a few different places and make sure that im checking the right thing before i start tearing into my truck. got a 1991.5 intercooled dodge 12 valve and i got oil in my coolant. buddy at cummins said that it could be 1 of 2 things. blown head gasket (truck is stock) or faulty oil cooler. just wanted to see what you guys thought. thanks!

Also, the truck does not smoke at all, whatsoever. no white, just the regular amount of black....
1991.5 Dodge Cummins LE, SC LB, 12 valve 5.9L, 4x4, Intercooled, 4 speed A518 Auto, Straight Piped, 5" MBRP Curved Stacks, 158,000 Miles.

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Postby peobryant » Wed Jun 24, 2009 11:23 am

Oil in coolant usually means time for a new headgasket.

By the way, your truck can't be stock. Not if it blows black smoke at least... :lol:
Parker
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Postby 91dodgecummins12v » Wed Jun 24, 2009 12:21 pm

fuel pin is turned up a little bit.... thats all though...
1991.5 Dodge Cummins LE, SC LB, 12 valve 5.9L, 4x4, Intercooled, 4 speed A518 Auto, Straight Piped, 5" MBRP Curved Stacks, 158,000 Miles.

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Re: Oil In The Coolant, No Oil In The Engine....

Postby Richie O » Wed Jun 24, 2009 1:31 pm

91dodgecummins12v wrote: buddy at cummins said that it could be 1 of 2 things. blown head gasket (truck is stock) or faulty oil cooler.



Pretty much good info.
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
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Postby 91dodgecummins12v » Wed Jun 24, 2009 2:44 pm

going to pull the oil cooler out tonight. i hope to god thats the problem... theres enough of a mess as it is. i will cry if i have to pull that head off that truck... hahaha
1991.5 Dodge Cummins LE, SC LB, 12 valve 5.9L, 4x4, Intercooled, 4 speed A518 Auto, Straight Piped, 5" MBRP Curved Stacks, 158,000 Miles.

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Postby Richie O » Wed Jun 24, 2009 2:53 pm

Good luck. Take it out and do a pressure test under water and that will tell you. I have heard of people finding a bad cooler and then find out the gasket is bad also.


I have a question that goes along with this for somebody smarter then me. ( doesn't take much ). If the cooler was bad it would leak oil into the coolant while the engine was running due to the oil pressure being more then the coolant pressure. Wouldn't the coolant then get into the oil after you shut the truck off? The cooling system has 10 to 15 psi for a while after you shut down.
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
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Postby jogl » Wed Jun 24, 2009 3:03 pm

My bet is on oil cooler.

How much oil are you seeing in the coolant?

JP.
92 W250 and lots of others.
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Postby 91dodgecummins12v » Wed Jun 24, 2009 9:18 pm

90 % of my oil was in the rad and overflow, the coolant was forced out everywhere onto my truck... the cooler has a tiny hole right where the brazing is. taking it to a shop to get re brazed tomorrow. and off to cummins to get a new oil cooler gasket as well.

keeping my fingers crossed that this is the problem. seems to make sense though... thanks for your help guys!
1991.5 Dodge Cummins LE, SC LB, 12 valve 5.9L, 4x4, Intercooled, 4 speed A518 Auto, Straight Piped, 5" MBRP Curved Stacks, 158,000 Miles.

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Postby Old 'n Rusty » Mon Jul 20, 2009 3:33 pm

A half teaspoon of coarse ground pepper will usually put a stop to most small leaks. The pepper becomes incredibly sticky in hot coolant and seals leaks permanently. This of course won't work in Calgary because it makes the horses sneeze.
Early '91, Getrag, gauges, light mods,492 k., 354
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Postby Begle1 » Mon Jul 20, 2009 3:37 pm

That's some shade tree knowledge there. :shock:
1990 D-250 Regular Cab: Tweaked injection pump, built transmission, a cataclysmic charlie foxtrot of electronics, the most intense street-ran water injection system in the country, and some more unique stuff.
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Postby Richie O » Mon Jul 20, 2009 7:01 pm

Old 'n Rusty wrote:A half teaspoon of coarse ground pepper will usually put a stop to most small leaks. The pepper becomes incredibly sticky in hot coolant and seals leaks permanently. This of course won't work in Calgary because it makes the horses sneeze.


My grandfather always did that when he had a leak.
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
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Postby PToombs » Tue Jul 21, 2009 6:18 pm

Yeah, I'm sure that pepper will plug up that 60psi hole in the oil cooler in a heartbeat. :roll:
A coolant leak might be plugged like that though. They used to use oatmeal in the Model T's. ;)
pete

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Postby Richie O » Tue Jul 21, 2009 8:54 pm

I was talking coolant, you knuckle head. :D
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
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Postby PToombs » Wed Jul 22, 2009 6:21 pm

I was poking the other guy. Want me to start on you? :evil:










;)
pete

Just enough power to break everything behind the crankshaft.
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Postby Richie O » Wed Jul 22, 2009 6:23 pm

PToombs wrote:I was poking the other guy. Want me to start on you? :evil:










;)




Yes, its been awhile. :D
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
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