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#1 |
Registered User
Join Date: Sep 2018
Location: GRAND JUNCTION, CO
Posts: 3
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1975 Cheyenne Project
I just got a 75 Cheyenne with a 350 someone put in at least 20 years ago. It's been sitting for almost 15 years out in a field but apparently the motor was strong back then and built by a professional. I'm trying to decide if I should tear this thing apart and try reusing the parts after inspection and rebuild or if I should just try and make it run with new rubber, fluids and a carb. The only thing I can tell about it without pulling it is it's got an Edelbrock Torker, some long block, and a Rochester QuadraJet 17053507, some small headers and a bunch of wasps nests.. the motor cant have more than 30000 miles on it but its been in the elements for a long time. Any advice or "if I were you's"?
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#2 |
Registered User
Join Date: Dec 2014
Location: Euless, Texas
Posts: 511
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Re: 1975 Cheyenne Project
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1974 Cheyenne 10 LWB Stock 350 W/HEI /TH350/AC/4 BBL Quadrajet Mopar by Birth Chevy by Choice |
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#3 |
Registered User
Join Date: Sep 2018
Location: GRAND JUNCTION, CO
Posts: 3
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Re: 1975 Cheyenne Project
Hey thanks!
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#4 |
Registered User
Join Date: Jun 2018
Location: Selah Wa
Posts: 68
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Re: 1975 Cheyenne Project
Welcome.
It is always a risk to take an engine that has been sitting for years and try to start it up. I have seen everything from just turning it over by had before firing, to filling the cylinder with oil and letting it sit for a day to a week. At a minimum, you will want to change all fluids. Turn it over by hand at least 2 full revolutions. Pull the distributor and use a oil pump primer in a drill to push oil through the system. Put in new spark plugs and try to start it. If it runs, you can decide if it runs good or not, do a compression test. See what the overall health is of the motor and go from there. I have a 1965 C10 that I got running after sitting behind a barn for 22 years. It runs great now and I have not pulled the engine apart at all. But every case will be different. Time does bad things to seals, so don't be shocked if the thing leaks from every place that hold fluids. Transmission, brakes, etc. are all another story and need to be dealt with. |
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#5 |
Registered User
Join Date: Sep 2018
Location: GRAND JUNCTION, CO
Posts: 3
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Re: 1975 Cheyenne Project
65 c10, what all did you do to it before cranking? Does yours leak all over or did you replace a bunch of stuff?
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#6 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,293
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Re: 1975 Cheyenne Project
Ive had a lot of luck over the years starting and using SBCs that were left idle for years. Ive always removed plugs and shot trans oil in the cylinders and let sit for a bit then hand cranked the motor Ive then changed the oil and made sure that I cranked the motor to get circulation of oil. New coolant plugs wires and then a start. Ive got a 79 now that has sat about 3 years im going to refire soon and that's how I will start it
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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#7 |
Registered User
Join Date: Nov 2015
Location: Smethport, PA
Posts: 1,213
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Re: 1975 Cheyenne Project
My big block truck sat for 12 years. The company that brought it to me said that they drove it onto the trailer and did nothing but rig up a can with new gas. I was a little worried at what damage they may have caused, but it runs strong. I would put some oil in the cylinders and after some time crank it by hand. If it seems to crank ok follow Old65C10's advice.
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85 K30 crew cab dually - Project http://67-72chevytrucks.com/vboard/s...d.php?t=694939 87 Wrangler Rock Crawler - Reason for the project http://www.wranglerforum.com/f330/da...ld-122601.html 04 1500 crew cab http://67-72chevytrucks.com/vboard/s...d.php?t=786514 |
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#8 | |
Registered User
Join Date: Jun 2018
Location: Selah Wa
Posts: 68
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Re: 1975 Cheyenne Project
Quote:
So far I have replaced the coolant hoses, all brake parts and fuel hoses. I also cleaned out the fuel tank. New fuel pump. Right now it still has the original plugs, wires, cap, rotor. Right now it has no leaks. However, I have not driven it for a couple of months and need to do some work on it. It is a project and I got it for fun. I have a 84 K30 and a Goldwing so it is not needed right now. I also work from home and rarely drive anywhere. |
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#9 | |
Registered User
Join Date: Oct 2013
Location: Maine
Posts: 2,357
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Re: 1975 Cheyenne Project
Quote:
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76 Chevy K20 76 GMC K15 77 Chevy C10 77 Chevy K10 |
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