Sullivan Palatek D210 fuel leaks into tank

by Joe Z
(Spartanburg, SC )

Sullivan Palatek pull behind D210 Compressor fuel leaks back down into tank.

My compressor uses a John Deer motor.

I have had a problem of it starting for about a month and finally quit. It would always turn over and eventually start, now it just turns over and doesn't start.

Mechanic says it was the fuel pump so we replaced the fuel pump, same problem, now he says its the lifter pump(one you use when you run out of fuel to prime the lines) so we replaced that and same problem.

So I changed the black fuel line from the tank to the lifter pump to a clear one so I could see what was going on. This is what I have found.

After a day or so of sitting the fuel starts to leak back down into the fuel tank leaving the line empty. If I catch it in time and there is some fuel left in the line i can start it but it will take about 10-15 seconds of turning it over to start. at that point the clear fuel line is solid fuel and no air pockets.

I've never had this problem before and I am stuck.

My mechanic is clueless as well.

Any pointers would be great. thank you in advance. I hope someone here has ran into this before.

Comments for Sullivan Palatek D210 fuel leaks into tank

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Jan 14, 2016
fuel leak
by: Doug in


If that's the case, then I'm thinking maybe a leaky injector. Does it smoke a bit after it's been sitting?

Jan 13, 2016
Check Valve installed
by: Joe Z

This particular compressor does not have a check valve in the fuel line or fuel supply. Today I talked with the JD guys at the local dealership and they have seen this problem before. They recommended a inline check valve, they install these on there bigger JD tractors. I bought one today and will see what happens after a couple days of sitting.

Jan 13, 2016
by: Doug in

OK, just to clarify, are you certain the fuel is going back into the tank, or maybe somewhere else?

If the hose is going dry, there has to be air or some other gas filling the void.

Maybe if you watch it, you can see bubbles and see where they come from?

There has to be some sort of check valve (maybe internal to the pump) somewhere to keep the rail pressure up. Maybe you have crud in the tank that's making the check leak...

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