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Submitted: 560 days and 16 hours ago.

Category: Car

Value: $15

Status: CLOSED

Optional Information:
1980 Chevrolet c 10 cargo 350

Already Tried:
Have not tried anything yet.

Posted by Dan 560 days and 16 hours ago.

Info Request

Hi XX XXXXX XXX. Thank you for asking your question on Just Answer. The other Experts and I are working on your answer. By the way, it would help us to know:

-What year is your Car?
-What make and model is your Car?
-How many miles are on your Car?
-What type of engine is in your Car?
-What have you already tried?

Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.

560 days and 16 hours ago.

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1980 chevy 350, 89,000 miles, havent tried anything yet.

Accepted Answer

Hi XX XXXXX XXX,
One of two things can be happening here. Either the diaphram in the fuel pump on the side of the engine is busted and pushing fuel into the engine, OR the carburetor bowl float is stuck and fuel is syphoning into the intake and down the cylinders past the rings and into the oil pan. If the engine seems to run ok, I would bet on the first choice. The first choice is also a more likely cause than a float in the carb.
I hope this information helps. If I can assist further feel free to reply here. Thanks for posting on JA.com
Autotech36

Accepts:
Expert:	autotech36
Pos. Feedback:	100.0 %
Answered:	5/11/2008

Auto Service Technician

ASE certified, GM certified, Chrysler certified

560 days and 15 hours ago.

Reply

Reply to autotech36's Post: Would you still have good presure on the gas flow from the fuel pump? Also this van has been setting for 6 years or so. To start it you have to hold foot pedal to the floor.
Thanks Richard

Posted by autotech36 560 days and 15 hours ago.

Answer

Yes XX XXXXX XXX, it is possible to still have sufficient pressure to run the engine.... mainly because it is carbureted and not fuel injected. A carburetor typically only requires about 7 psi of fuel preuusre to operate correctly. Most mechanical fuel pumps can pump between 10-30 psi.

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Optional Information: 1980 Chevrolet c 10 cargo 350Already Tried: Have not tried anything yet.

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1980 chevy 350, 89,000 miles, havent tried anything yet.

Accepted Answer

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Reply to autotech36's Post: Would you still have good presure on the gas flow from the fuel pump? Also this van has been setting for 6 years or so. To start it you have to hold foot pedal to the floor. Thanks Richard

Answer

Yes XX XXXXX XXX, it is possible to still have sufficient pressure to run the engine.... mainly because it is carbureted and not fuel injected. A carburetor typically only requires about 7 psi of fuel preuusre to operate correctly. Most mechanical fuel pumps can pump between 10-30 psi.

Related Car Questions

Optional Information:
1980 Chevrolet c 10 cargo 350

Already Tried:
Have not tried anything yet.

Reply to autotech36's Post: Would you still have good presure on the gas flow from the fuel pump? Also this van has been setting for 6 years or so. To start it you have to hold foot pedal to the floor.
Thanks Richard