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08-18-2015, 01:07 PM
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#1 |
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Senior Member
 
Join Date: Mar 2014
Location: Toano, VA
Posts: 884
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What to do with engine out (rebuild? clean?)
Got my 350 out the other day. Runs okay, burns oil and leaks oil (we think around rear main seal) so I'm looking to use this time to do some work to it.
I cant afford a full on rebuild, but want to do this engine some good. My questions: whats some light work I can do to this engine to help her run better? Why does my oil smell like gas? Are there any smaller rebuild kits that will help me keep her running good if not better? I'm not a penny pincher, if its a sensible purchase with clear benefits, I'll go for it. But if I can just clean and reassemble and have it run better, that'd be great.
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"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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08-18-2015, 02:35 PM
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#2 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,961
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Re: What to do with engine out (rebuild? clean?)
Your oil smells like gas because your carb is leaking after shut down and it trickles past the rings. Stock 40 year old Q-jet? Fuel in the oil is bad... it will eat up your bearings.
If it's the stock 40 year old worn out engine... there isn't much you can do to it. It's burning oil and probably needs new valve guides and seals. But if you freshen up the top end, it will suck oil past the worn out rings and you will still have a mosquito fogger. Just clean it up. replace the leaking rear seal, and do a full on tune up. Get your carb looked at or rebuilt. If it is in fact an old Q-jet, chances are the well plugs in the bottom are leaking and it will also need to have the throttle bores rebushed. Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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08-18-2015, 06:47 PM
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#3 |
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Senior Member
Join Date: Mar 2014
Location: Toano, VA
Posts: 884
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Re: What to do with engine out (rebuild? clean?)
It's actually a new(ish) Edelbrock carb. 4 barrel. Would you happen to have a kit in mind? Possibly a link I could take a look at.
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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08-19-2015, 06:37 PM
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#4 |
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Registered User
Join Date: Jul 2010
Location: MD
Posts: 1,937
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Re: What to do with engine out (rebuild? clean?)
Now is the best time to replace all the freeze plugs while you can get to them easily.
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08-20-2015, 07:31 AM
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#5 |
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Senior Member
Join Date: Mar 2012
Location: Chesapeake, Va
Posts: 1,275
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Re: What to do with engine out (rebuild? clean?)
actually you can get a re ring kit with rings, bearings, gaskets for less than a hundred bucks, that is what I would do, tear it down, clean everything up and replace if done right I think it would last you until you are ready to upgrade
http://www.summitracing.com/parts/su...-000/overview/
__________________
Mike 72 C-10 Cheyenne off frame resto and Upgraded to 4 wheel disk, Tilt, Dakota Digital Dash / Rear slider. 421 SBC / TH350 3000RPM Stall Progression Ignition /Holley 750 DP/3:73 gear Eaton Limited Slip unit / 2 1/2 exhaust glasspacks 
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08-20-2015, 07:41 PM
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#6 |
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Registered User
Join Date: Aug 2012
Location: Fort Campbell, KY
Posts: 494
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Re: What to do with engine out (rebuild? clean?)
You are about where I am at. Don't want to tear down my '75 350 but want to stop the leaks. I'm running a bunch of seafoam through it, pulling it, cleaning, freeze plugs, replace dented and leaky oil pan, seals, paint, and throwing it back in.
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