870 fuel screw

870blackknight · Mar 11, 2012

Where is the fuel pump screw on my 870 diesel? Thanks

Case Nutty 1660 · Mar 11, 2012

if you can't read this let me know I can e-mail it to you make sure you don't turn more than it say's at a time cnt

870blackknight · Mar 11, 2012

Thank you cnt I will try that

jon f mn · Mar 11, 2012

When doing this be carefull with the 4 bolts on the cover. They screw into aluminum and strip out very easily. Trust me on this one.

RGMartin · Mar 11, 2012

(quoted from post at 15:45:39 03/11/12) When doing this be carefull with the 4 bolts on the cover. They screw into aluminum and strip out very easily. Trust me on this one.

Big +1 to that.

Gene Dotson · Mar 11, 2012

If the load screw doesn't give the desired fuel delivery, you may have to open the fuel rack stop on the front top of the pump. There is a screw with shim washers under it. Remove shims as needed to get required fuel. This controls maximun fuel delivery under heavy load like tractor pulling. When I was pulling my 700, I would take the cap off during the pull. Would really put out the smoke.

Gene

Lamont · Mar 11, 2012

Got anything like that on a 2090? Is it about the same? Pump housing looks the same. Thanks.

Case Nutty 1660 · Mar 11, 2012

I have it for the 2090 but it is the same adjustment procedure

Lamont · Mar 12, 2012

OK. The title on the page says "Engine Speed Adjustment." Then, I notice it says "Continued." I know this particular page is addressing what I call the "Fuel Load." What is there, or is there anything, internally, other than the governor, that will adjust the RPM? Thanks.

Dieseltech · Mar 12, 2012

Gene is correct about rack screw at front of pump, Bosch used screw and shimms to set 100 RPM cranking delivery on testbench originally. High speed stop screw is on housing to limit throttle lever travel. RSV governor also has sensetivity adjustment internally for quicker response if desired, but may have surge trouble if set too hot.

870 fuel screw

870blackknight

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870blackknight

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jon f mn

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RGMartin

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Gene Dotson

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Lamont

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