Eegore - Eet Leeves! Got my 77 running! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

D13 · 04-29-2011, 09:15 AM

Bought this truck a year ago, 77 1/2 250 3OTT ex southern county truck. Well, it sort of ran, electric choke disconnected and manual choke not working well, etc.
Over the winter I rebuilt the carb, took 2 carbs to make 1 good one. Then I replaced the leaking valve cover (no gasket, overtorqued wet RTV, bent flange) cleaning the sand out of the cover and most of it off the head (truck had lived in a gravel pit the last couple years). Replaced the fuel pump (consitantly leaking down, bad check valve), cracked vacuum hoses (appeared to be factory), and capped off unused vacuum ports (since EFE and EGR are deleted). Pushed it out of the barn (lessons learned form previous carb rebuilds), threw a tablespoon of gos down it, and it fired up!
Poured gas out of the carb vapor port, probably a pint in 20 seconds!

Turned it off and walked away, grabbed the fire extinguisher and worked nearby for an hour.
Once it evaporated and cooled enough that I thought the risk of fire was acceptable (since the gas was dumped directly on the exhaust manifold...) I opened the carb, set the float way low, then buttoned it up and tried again.
Leaks gas, steady stream out the fuel line nut!

Turned it off, tightened both nuts (gotta be careful not to strip that filter nut!).
After waiting an hour (there was LOTS of gas on the engine) i started it up.
IT RUNS! Idle is too high, mix is a little lean, etc. but it ran!

Then it started smoking out the valve cover breather inlet, even with a new PCV and hose. Crap.

And the clutch (supposedly new) has zero free play, and the trans whines.

But it now runs and drives, although with manul steering and manual brakes (yes, manual front disc rear drum brakes) it's not really a pleasure. And every piece of trim is loose or broken. And the wireing is just.. scary. They added aftermarket AC and managed to get the fan stuck permanently on, then filled it with sand.

But it runs! And I love it! now 2 out of my 5 are running!

Eyegore · 04-29-2011, 12:56 PM

Blukker

justinburnett · 04-29-2011, 02:44 PM

Sounds like my kind of truck!

big10ratrod77 · 04-30-2011, 08:41 AM

Quote:

And the clutch (supposedly new) has zero free play, and the trans whines.

dont worry my 79 dose the exace thing same thing in both instances, i dont let it bother me becouse im looking at swaping the transmission to a richmond t10 and a better clutch... when i build another 250 for it

sounds like you are comming right along with you project keep us updated.

is your truck a 2 bbl or a 1bbl?

04-29-2011, 09:15 AM	#1
D13 Registered User Join Date: Feb 2007 Location: Memphis MI Posts: 1,851	Eegore - Eet Leeves! Got my 77 running! Bought this truck a year ago, 77 1/2 250 3OTT ex southern county truck. Well, it sort of ran, electric choke disconnected and manual choke not working well, etc. Over the winter I rebuilt the carb, took 2 carbs to make 1 good one. Then I replaced the leaking valve cover (no gasket, overtorqued wet RTV, bent flange) cleaning the sand out of the cover and most of it off the head (truck had lived in a gravel pit the last couple years). Replaced the fuel pump (consitantly leaking down, bad check valve), cracked vacuum hoses (appeared to be factory), and capped off unused vacuum ports (since EFE and EGR are deleted). Pushed it out of the barn (lessons learned form previous carb rebuilds), threw a tablespoon of gos down it, and it fired up! Poured gas out of the carb vapor port, probably a pint in 20 seconds! Turned it off and walked away, grabbed the fire extinguisher and worked nearby for an hour. Once it evaporated and cooled enough that I thought the risk of fire was acceptable (since the gas was dumped directly on the exhaust manifold...) I opened the carb, set the float way low, then buttoned it up and tried again. Leaks gas, steady stream out the fuel line nut! Turned it off, tightened both nuts (gotta be careful not to strip that filter nut!). After waiting an hour (there was LOTS of gas on the engine) i started it up. IT RUNS! Idle is too high, mix is a little lean, etc. but it ran! Then it started smoking out the valve cover breather inlet, even with a new PCV and hose. Crap. And the clutch (supposedly new) has zero free play, and the trans whines. But it now runs and drives, although with manul steering and manual brakes (yes, manual front disc rear drum brakes) it's not really a pleasure. And every piece of trim is loose or broken. And the wireing is just.. scary. They added aftermarket AC and managed to get the fan stuck permanently on, then filled it with sand. But it runs! And I love it! now 2 out of my 5 are running! __________________ 1987 2 ton 1982 250/TH350 beater in progress Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping Plus a mess o' tractors Last edited by D13; 04-29-2011 at 09:17 AM.

04-29-2011, 12:56 PM	#2
Eyegore What Hump? Join Date: Apr 2003 Location: New River AZ Posts: 2,009	Re: Eegore - Eet Leeves! Got my 77 running! Blukker __________________ Lil red 86 c-10 99 Sub 78 Camper Special w/ 454

04-29-2011, 02:44 PM	#3
justinburnett Registered User Join Date: Sep 2010 Location: The Dalles, OR Posts: 392	Re: Eegore - Eet Leeves! Got my 77 running! Sounds like my kind of truck!



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