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05-17-2017, 10:51 PM
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#1 |
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Registered User
Join Date: Apr 2011
Location: Fairview Park, Ohio
Posts: 1,031
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Head gasket bad??
1970 c10
350 I bought this truck in 4 months ago. Only drove it short period at purchase Installed new intake and carb and then found antifreeze in oil. About a quart high on the dipstick Before the intake change oil was fine so thought problem with intake gasket Changed that and now I'm seeing white smoke on exhaust. It or possible for head gasket to go bad just by running it in my driveway here and there. The truck has no bed and I haven't even driven it yet See video and let me know. Thanks. https://m.youtube.com/watch?v=GAplbU6Ln_0 |
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05-18-2017, 11:27 AM
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#2 |
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Senior Member
 
Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,991
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Re: Head gasket bad??
What's the smoke smell like? Usually it will stink like burnt antifreeze. Hard to tell from the video.
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ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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05-18-2017, 11:41 AM
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#3 |
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Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Head gasket bad??
Go buy a cheap block tester kit to check for combustion gas in the cooling system from autozone. Then you have it and can lend it out to friends.
http://www.autozone.com/loan-a-tools...ter/391378_0_0 You won't get the answer you require on a forum. Or, you messed up the intake gasket install and now you have coolant leaking into engine and intake port. Pull plugs and one should look different (that has the coolant going into it).
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC Last edited by demian5; 05-18-2017 at 11:46 AM. |
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05-18-2017, 11:46 AM
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#4 |
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Registered User
Join Date: Jul 2016
Location: Brandon,MS
Posts: 489
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Re: Head gasket bad??
HA!! Thats funny
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05-18-2017, 04:19 PM
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#5 |
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Registered User
Join Date: Sep 2015
Location: Lake Placid florida
Posts: 599
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Re: Head gasket bad??
Intake or head gasket. Hope it's the former.
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05-18-2017, 07:40 PM
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#6 |
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Registered User
Join Date: Jun 2008
Location: Moss Point,Ms.
Posts: 1,439
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Re: Head gasket bad??
If your trans has a modulator valve,it could be bad,sending trans fluid to the vacuum port and cylinders.Will produce white smoke.
Mike. 
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05-18-2017, 09:16 PM
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#7 |
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Registered User
Join Date: Aug 2013
Location: cheyenne wy
Posts: 31
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Re: Head gasket bad??
If it's been run with coolant in the oil it's likely the bearings will fail
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05-18-2017, 09:18 PM
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#8 |
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Senior Member
Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: Head gasket bad??
"You won't get the answer you require on a forum."
Nope that will never happen ! 
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05-18-2017, 09:49 PM
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#9 |
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Registered User
Join Date: Apr 2011
Location: Fairview Park, Ohio
Posts: 1,031
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Looks like I figured it out
I've still yet to drive the truck since purchase 4 months ago. Restoring it now but start and warm it up once in a while Mechanic buddy install new aluminum intake, carb, and HEI Wasn't antifreeze in oil before so figured something went wrong with intake install. I installed new intake gaskets and fine now. Changed oil twice already and seems fine. Smoke must have been residual antifreeze. The edelbrock gasket directions said not to put silicone around water jackets on intake side. My buddy did and maybe it was that. May never know for sure but engine runs great and hopefully the bearings are ok since it was only ran on driveway a few minutes 3-4 times. Thanks for all the info. Great forum and yes does very often help us through troubles. Mark Posted via Mobile Device |
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