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#1 |
Project Heaven in my 67!!!
Join Date: Jan 2009
Location: Bosqueville, TX
Posts: 899
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Firing motor after a long sit!
So I built the 350 4-bolt main in the 67 about 5-6 years ago. It has never been driven but before my last deployment it was run weekly to keep it going.
Now, 2.5 years later I have pulled the fuel tank to replace with an underbed tank. Im about to get ready to try and fire it again for the first time since before I deployed. What should I do before attempting to fire this engine that has sat for so long? It does turn over easily nothing is frozen... Im looking more along the lines of the carb, oil, etc... |
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#2 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: Firing motor after a long sit!
id replace the oil and oil/fuel filters then just to be safe after you put fresh oil in id prime the oil pump before you started it
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#3 |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: Firing motor after a long sit!
Since you already turned it over, I would just pull the plugs, squirt some oil in each cylinder, pull the power to the coil, and spin it with the starter for 30 seconds, put the plugs in and the wire back and fire it up. Might replace the fuel filter first. I would not replace the oil/filter until after it started. All this assumes it has been in a relatively dry place. If it is stored outside under a cover I might worry more about rust and moisture.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#4 | |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: Firing motor after a long sit!
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#5 |
Registered User
Join Date: Jul 2005
Location: AL
Posts: 1,828
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Re: Firing motor after a long sit!
fresh gas, hot battery... check the gas lines to carb.... hit the key...
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#6 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Firing motor after a long sit!
I let mine crank (fuel pump off, or coil wire off) for as long as it takes for oil pressure to come up to operating range. If you didn't add fuel stabilizer, you -might- consider draining the bowl first, it's probably full of that powdered fuel residue.
I'd change the oil -after- you got it up to operating temperature. Any junk in the motor will wind up in the oil in the first few minutes, and the "protective" value of new vs old oil in those few minutes is probably negligible. Drive slow at first, the tires are probably square on the bottom (and if its been long enough, they could separate and fail).
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#7 | |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: Firing motor after a long sit!
Quote:
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#8 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: Firing motor after a long sit!
MARKDTN i didnt mean to come off as rude or to sound like you didnt know what you are talking about i apologie if i did, you mke a ood point on the priming tool, he could possibly put oil in the new filter before putting it on we always did this on diesels at the lube shop i worked at
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#9 | |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: Firing motor after a long sit!
Quote:
__________________
'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#10 |
Project Heaven in my 67!!!
Join Date: Jan 2009
Location: Bosqueville, TX
Posts: 899
|
Re: Firing motor after a long sit!
I should have put a little more into the post. There was no stabilizer in the fuel, but the old tank is gone as I am in the process of installing an aluminum tank under the bed, already blew the line out from the carb back to make sure I got all the "bad" stuff out of the line. Not real smart on taking apart or putting back together the carb at all, so if any of you have a "How to" on that I would appreciate it. A buddy of mine said to spray WD-40 down into the carb and work the throttle levers real good before firing (not sure what that would do other than free it if it has stuck closed)...
I have rolled the motor over by hand not with the starter to make sure it was free. I was planning on pulling the coil wire and rolling until I built pressure up before attempting to fire. I plan on replacing the plugs, cap, rotor, oil and filter after she fires and gets to normal operating temperature. Thought about squirting oil down in the plug holes before rolling with the starter, most likely will do that so she doesnt turn dry... Anything I am forgetting???? |
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#11 |
Registered User
Join Date: Oct 2009
Location: Southeast PA
Posts: 57
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Re: Firing motor after a long sit!
It would be better for the bearings in the engine if you started the truck and immediately ran it at around 2000rpm to get the oil pumping through the engine rather than disconnecting the distributor and using the starter to turn it over at a lower RPM. This will quickly get the oil moving through and pressurize all of the bearings and coat all of the internal surfaces.
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Dave 1971 Chevy K10 1972 Chevy C10 |
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#12 | |
Project Heaven in my 67!!!
Join Date: Jan 2009
Location: Bosqueville, TX
Posts: 899
|
Re: Firing motor after a long sit!
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#13 | |
Registered User
Join Date: Oct 2009
Location: Southeast PA
Posts: 57
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Re: Firing motor after a long sit!
Quote:
Bearings will always suffer some wear on startup.
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Dave 1971 Chevy K10 1972 Chevy C10 |
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#14 | |
Project Heaven in my 67!!!
Join Date: Jan 2009
Location: Bosqueville, TX
Posts: 899
|
Re: Firing motor after a long sit!
Quote:
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