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982 Fuel Pump Change...
- Thread starter Ida Red
- Start date
gitractorman
501 Club
Red,
I've got no idea on this one. Never have had any problems with the original fuel pumps, so I'm not sure why you would want to change one out.
Bill
I've got no idea on this one. Never have had any problems with the original fuel pumps, so I'm not sure why you would want to change one out.
Bill
Bill
She came with a JDeere vaccum pump that had one nipple broken off and and a new electric pump in the box. With the electric pump it seems to flood, smoke and run rough like it is getting too much gas. Yet the inline fuel filter is only 1/4 full of gas when she is running. Les
She came with a JDeere vaccum pump that had one nipple broken off and and a new electric pump in the box. With the electric pump it seems to flood, smoke and run rough like it is getting too much gas. Yet the inline fuel filter is only 1/4 full of gas when she is running. Les
Compare the original fuel pump to NAPA or Federated part number 7-08015. That fuel pump is used on single cylinder engines and operates off of crankcase internal pressure/piston movement. The same fuel pump is used by Briggs, Kohler and other engine manufacturers.
If that is not the correct fuel pump, take the old one in to a small engine shop or well staffed auto parts store. If they want to take the time they can visually compare the fuel pump to their paper parts books.
If that is not the correct fuel pump, take the old one in to a small engine shop or well staffed auto parts store. If they want to take the time they can visually compare the fuel pump to their paper parts books.
Problem is that fuel pumps operate at different psi's. The electric fuel pump is probably over powering the Onan's carburetor float.Ida Red":2968c89h said:The electric pump it seems to flood, smoke and run rough like it is getting too much gas.
You may be able to disassemble the fuel pump and replace the broken nipple with a bit of metal tubing and some epoxy. Done this in the past - drilling out the old nipple with a drill bit matching the diameter of the tubing.one nipple broken off
Tried to identify a single vacuum powered fuel pump for a 20 HP Onan. Did find a repair kit for one for $60- on E-bay. Ouch. There were quite a number of electric (DC) powered replacement fuel pumps for Onan engines.
If you want to replace the original fuel pump - take it to your favorite auto parts store or small engine shop.
Test the psi of the current electric fuel pump. If you find the fuel pump has a pressure above 5 psi it's probably over powering the float and needle valve. If it's not the fuel pump, carburetor problem.
Low pressure electric fuel pumps, some as low as 1.5 psi, are available at reasonable prices.
Low pressure electric fuel pumps, some as low as 1.5 psi, are available at reasonable prices.