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08-22-2004, 08:45 PM
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Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
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gas in the oil?
what would make gas get in the oil? the fuel pump is good as far as i know, so far it has done this with 3 carbs, 2 fuel pumps, an old set of rings, and a new set of rings... only thing i can figure is cracked head?
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ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
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08-22-2004, 09:43 PM
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#2 |
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Registered User
 Join Date: Dec 2002
Location: Northern Virginia
Posts: 1,269
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If your heads aren't rebuilt do a compression test. on my blazer it ran pretty good but had a little humpy dump feeling in it and gass in oil. went through a bunch of carbs and chokes. Did a comp test had 150 across the board except one cylinder had 10. I would think a cracked head would be dumping antifreeze just a thought
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08-22-2004, 09:56 PM
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67-72 truck surgeon
Join Date: Jul 2003
Location: Indiana
Posts: 155
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This happened to me. My carb was rich and the cam was too big, so it fouled plugs and dropped cylinders. The gas will get in that cylinder and work it's way into the oil. Checking the compression would be a good idea too. Possibly even check valve adjustment.
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1969 Chevy C10 1993 Toyota Camry LE 1999 Ford F250 Super Duty 4x4 diesel 2008 Dodge Charger Super Bee 1953 International R182 |
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08-23-2004, 06:35 AM
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Registered User
Join Date: Jul 2004
Location: Amish Wonderland of Central PA.
Posts: 31
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Quote:
I have seen this on a good running 327. The poor chap also rebuilt his engine to no avail. In his case it WAS the fuel pump that leaked into the block. Since you have replaced yours a couple of times, that shouldn't be it. Short driving trips or long idle times can contribute to fuel in the oil. Make sure your choke fully opens at warm-up and stays open afterwards.
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Dennis 68 GMC SWB Custom 1/2 ton, 2WD, 350 V8, PS, PB, 3-Speed, 3:08 12 bolt rear, tilt, tach, vac, cruise and more. . . . |
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08-23-2004, 08:06 AM
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Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
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this one happens to be a 327 too (the 332 in my sig-- 327 bored .030)
it did that in my 4x4, first i figured carb.. so i took off the holley, put on a edelbrock, changed the oil, it did it again, so i pulled the engine, rebuilt it, put on a new fuel pump, tried it with the holley again.. did it again.. ok gotta be carb right? i pull the carb, put on a rebuilt 73 quad, drove it 1/2 mile, brakes locked up, parked it, tried to start it a couple days later, and it did it again
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ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
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08-23-2004, 10:47 PM
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Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
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tt, any other ideas?
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ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
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08-23-2004, 11:07 PM
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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You don't have the fuel line going to a vac port do you?
 just kidding man. (I have seen this done once though...but it was a ford boy and he is dummer than a rock...just smart enough to keep from crappin himself.)
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