Dvaid Brown 990 Selectamatic stalling

Doug Taylor · Feb 16, 2015

I have an old David Brown 990 Selectamatic Diesel that will run ok for about an hour then the engine RPM will increase then decrease repeatedly for about one minute until it finally stalls.

It usually requires a tow to get it started again, does not want to start on it's own again.

I have changed fuel filers but still does it.

Anyone have this problem before?

Thanks

Adirondack case guy · Feb 16, 2015

Scroll down to fred in Utah's post about his 880.
It may apply to your situation.
Loren

ArleninOr · Feb 16, 2015

Doug,check the fuel pump push rod on the lift pump.have seen them wear off to the point of the tractor doing just as you describe.Means you have to remove the lift pump. HTH.

RGMartin · Feb 16, 2015

Good thought. Also should consider a floater in the fuel system/tank, Bad check valve in the lift pump, cracked pickup in the tank(does it always quit at a certain fuel level?)... Lots of places to look.

Fred in Utah · Feb 17, 2015

Mine was a case of stupidity. Sounds like his is a mechanical issue.

Doug Taylor · Feb 17, 2015

Thank you for your reply. I will check it out.

Doug Taylor · Mar 1, 2015

It was the fuel lift pump that needed replacing. Tractor runs like a "new one" now.

Thanks for your help!

Doug

Dvaid Brown 990 Selectamatic stalling

Doug Taylor

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Adirondack case guy

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ArleninOr

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RGMartin

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Fred in Utah

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Doug Taylor

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Doug Taylor

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