backfire in 53 chevy pickup


Old 03-07-02, 03:57 PM
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backfire in 53 chevy pickup

I have two issues , one is gas in the oil and motor backfires thru carburator. any advice will be helpful. the motor is a striaght six.
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Old 03-07-02, 03:59 PM
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Gas in the motor oil is a blown fuel pump diaphragm.

Rectify that first and go from there.
Old 03-11-02, 08:25 PM
Join Date: Mar 2002
Location: Louisiana
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If fuel pump replace does'nt work, try setting floats and/or replacing float valve seats in carb. Is '53 a flathead or overhead valved engine???
Old 03-11-02, 08:31 PM
jz brake
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don't forget to change the oil when you fix the fuel pump
Old 03-11-02, 08:36 PM
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My 52 Jimmy was an OV engine (6 Cyl). How much gas in the oil are we talking about? Does it put the oil level on the stick way above the full mark? Does it just smell gassey? What is your point gap set at? What is your timing set at? Has the Distributor been out lately? Did this just start? Do you have a compression gauge? Please give us as much info as you can.
Old 03-12-02, 06:29 AM
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I agree with Marturo. Need more information.

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