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01-28-2011, 04:37 PM
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#1 |
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It followed me home?
Join Date: Mar 2003
Location: Yup
Posts: 5,751
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454 blowing blue smoke only above 3k rpm
I finally found a really cool 4*4 flatbed crew cab for work but the engine blows a lot of blue smoke but only above ~3k rpm. I took it for a test drive and through and on the highway it runs PERFECT, only blows smoke at high rpm. Owner said its been sitting on and off for a few years and once he drives it for a week or so the smoke stops? There is a little smoke on startup but not a lot, any ideas? Valve seals? rings? I did pull the pcv and it doesnt look like it is full of oil, let it idle with pcv out didnt see any smoke.
This will mainly be a big lot plow truck, and hauling small loads of rock, mulch, trailers etc... Oh the truck is an 89 tbi 454
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Adam That's why they call it a shortcut Kyle, if it was easy it would just be the way. 86 c-10 SWB 85 CCSB 90 GMC K30 Crew SRW 1985 C30 Dually Last edited by cochino12; 01-28-2011 at 04:47 PM. |
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01-28-2011, 10:21 PM
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#2 |
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It followed me home?
Join Date: Mar 2003
Location: Yup
Posts: 5,751
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Re: 454 blowing blue smoke only above 3k rpm
nobody?
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Adam That's why they call it a shortcut Kyle, if it was easy it would just be the way. 86 c-10 SWB 85 CCSB 90 GMC K30 Crew SRW 1985 C30 Dually |
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01-28-2011, 10:31 PM
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#3 |
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Garage wrench
Join Date: Feb 2008
Location: LaCrosse, WI
Posts: 1,855
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Re: 454 blowing blue smoke only above 3k rpm
it sounds like it could be pcv, but I am no engine builder. Maybe try pming BigBlocksRule. He seems to be pretty smart with the older big blocks.
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-Adam 90 V1500 GMC Suburban 350/700R4/NP241..... 01 Saturn SL1 stock DD..... |
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