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09-23-2013, 04:37 PM
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#1 |
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Registered User
Join Date: Aug 2013
Location: Mahtomedi, Minnesota
Posts: 335
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burning oil
Okay, I have a 68 with a 350 from a 73 pickup that has recently started burning oil, would this be a bad piston ring? Or is there something else that may cause it? Any input would help. And I have dual exhaust and the burning oil is only on the pass side (right) bank.
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Austin 2005 GMC Sierra 1500 4X4 4.8l V8 (Wrecked) 2003 Chevy 1500 standard cab short bed 4x4 w/ 5.3l |
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09-23-2013, 05:15 PM
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#2 |
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Active Member
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: burning oil
Is it burning oil while you drive or do you notice mostly on startup?
If it's primarily on startup, it could be valve stem seals. I just replaced them on a 75 350. They were so hard that some broke into pieces when removing them. If they've never been replaced I would do that anyway just to be on safe side. Of course the other possibility is rings. Maybe try some Sea Foam in the oil.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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09-23-2013, 05:50 PM
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#3 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: burning oil
do you have factory stock valve covers with the baffels/ cheapo chrome ones with none allow motor to suck oil in thru the PCV system
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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09-23-2013, 09:00 PM
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#4 |
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Registered User
Join Date: Aug 2013
Location: Mahtomedi, Minnesota
Posts: 335
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Re: burning oil
Well I've only had it for a month but it seemed to start running really rough in the 2000-2500 rpm ranges and it isn't the fuel filter, but it seems to kinda surge, hardly noticeable in 2ND gear but 3Rd and 4th it's easy to notice and it does it either until you let off the gas or put it to the floor, but then it starts again when the speed levels out
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Austin 2005 GMC Sierra 1500 4X4 4.8l V8 (Wrecked) 2003 Chevy 1500 standard cab short bed 4x4 w/ 5.3l |
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09-24-2013, 09:13 AM
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#5 |
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Registered User
Join Date: Oct 2012
Location: Scottsville, Virginia
Posts: 7
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Re: burning oil
Surging while at cruising speed could be caused by a lean condition. What carb are you running?
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09-24-2013, 10:02 AM
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#6 |
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Registered User
Join Date: Aug 2013
Location: Mahtomedi, Minnesota
Posts: 335
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Re: burning oil
It's a Holley 600cfm, but it didn't do it till just now so unless the adjustment screw was vibrated in I don't see how that's the problem.
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Austin 2005 GMC Sierra 1500 4X4 4.8l V8 (Wrecked) 2003 Chevy 1500 standard cab short bed 4x4 w/ 5.3l |
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