fuel pump and filter

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critter
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Joined: Wed Jan 18, 2006 7:45 pm
Location: New Bern, nc

fuel pump and filter

Post by critter »

First of all, I am by means a mechanic so please excuse me if this question sound stupid. My pinz would not start last night so today I started to trouble shoot. I believe I have figured out that my problem is no gas to the carburator. I disconnected the gas line to the carburators and no gas was delivered when I turned the starter.

I do believe that my problem is the fuel pump. When I disconnected the supply hose behind the fuel filter I felt no sucsion. And when I disconnect the hose leaving the pump no gasoline is disharged.

After the fuel pump is a resevouir that is usually 1/2 full with petro but I am not seeing a fuel filter. I did notice that a section of fuel line was spliced just before the fuel pump, is this where the fuel filter should go????
If so the previous owner has removed but not replaced it.
Jim LaGuardia
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Post by Jim LaGuardia »

The filter goes on the suction side(from tank to pump)and then there is an adapter to reduce the hose size to the pump inlet. From your description the pump is not working and should be rebuilt or replaced. Easy to fix.
You may want to check your oil for fuel contamination from a failed pump diaphram(if it smells like gas, change it).
Cheers, Jim LaGuardia
http://smg.photobucket.com/albums/v510/Goatwerks/
"Arch Magus of Machines."
critter
United States of America
Posts: 119
Joined: Wed Jan 18, 2006 7:45 pm
Location: New Bern, nc

Post by critter »

Please excuse my question, what I meant to say is when I dissconnected the line behind the fuel pump there was no suction when the started turned.
critter
United States of America
Posts: 119
Joined: Wed Jan 18, 2006 7:45 pm
Location: New Bern, nc

Post by critter »

Jim,

Thank you for replying. Yes there is a reducing tube behind the fuel pump, however, the same size fuel line has been used. Is there a reason for this reduction in fuel line size? What are the specs??

Thanks in advance'
Bob
Jim LaGuardia
United States of America
Posts: 1707
Joined: Wed Apr 14, 2004 3:42 pm
Location: San Bernardino Ca
Contact:

Post by Jim LaGuardia »

Specs are in parts book, hose is reduced for clampless connections(no clamps on fuel lines). I think the hose goes from 7mm to 5mm, depending on position.
Should have suction on the inlet when engine is turning over.
Cheers, Jim LaGuardia
http://smg.photobucket.com/albums/v510/Goatwerks/
"Arch Magus of Machines."
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