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Old 12-05-2014, 05:53 PM   #1
Dar Gin
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Default 1986 ezgo will not start

I have good fire , have 135-140 lbs. compression. New spark , new coil new igniter carb kit installed in carb.
.will flood out engine block. Will only pop doesn't even try to start.
should the hole under the fuel pump blow or suck
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Old 12-05-2014, 07:30 PM   #2
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Default Re: 1986 ezgo will not start

It should do both. When blowing, it should push your finger off pretty good.

You said flooded engine block. Since you have the fuel pump off, take it apart, and check the lower diaphragm for rips.

Looking at everything that you have listed, you are down to fuel pump, and crankshaft seals.
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Old 12-06-2014, 10:58 PM   #3
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Default Re: 1986 ezgo will not start

Agree with Cart..... The fuel pump diaphragm is probably leaking fuel back into the block. Crankcase pressure pulses drive the pump.
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Old 12-07-2014, 04:42 PM   #4
Dar Gin
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Default Re: 1986 ezgo will not start

Will look , but has a new fuel pump kit installed.
Thank You
With fuel pump on , it will not suck in at carb.
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Old 12-07-2014, 05:06 PM   #5
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Default Re: 1986 ezgo will not start

No suction at the carb would make me think that the piston is in backwards, or the crankshaft seals are junk.

Was this a recent rebuild?
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Old 12-07-2014, 07:33 PM   #6
Dar Gin
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Default Re: 1986 ezgo will not start

piston and rings replaced, installed piston with hole to carb side.
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Old 12-07-2014, 08:10 PM   #7
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Default Re: 1986 ezgo will not start

Did you align the end of the rings with the little pins in the ring grooves?

What was the result of putting your finger over the fuel pump hole while turning it over? Good pressure, or very little?

If the rings are on right, it screams crankshaft seals.

EDIT: The rings also have a bevel side that goes up.
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Old 12-07-2014, 08:43 PM   #8
Dar Gin
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Default Re: 1986 ezgo will not start

rings line up with notches , bevel side up. blows good pressure , but with fuel pump off and hole open sucks good , if I put my finger on hole no suction
Thanks for the help.
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Old 12-07-2014, 08:49 PM   #9
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Default Re: 1986 ezgo will not start

I'm sticking with crankshaft seals.
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Old 12-07-2014, 08:51 PM   #10
Dar Gin
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Default Re: 1986 ezgo will not start

is there any tested I could do before I pull engine again ?
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