Hard Starting 188D - Any Suggestions?

robilmichael · Jul 31, 2016

Hi I have an older 480CK. The injection pump went out last year and was rebuilt. It then started and ran excellent. Now, it is impossible to start even in 90 deg. temperatures. When the starter turns over it turns the engine quickly and fine, but it will not even put out any blue or gray or black smoke when being cranked. It acts as if it is not getting any fuel while being cranked over to start. Fuel flows through the filters and if I crack open a line to the injectors I get fuel flowing. However, if I give it a shot of either, it will kick over and start quickly. When it runs, it runs perfectly with no smoke, lots of power, no missing and no blue or black smoke. Any suggestions of where to look to try to fix this?

Thanks.

1370rod · Jul 31, 2016

If it is not puffing out white smoke while cranking it it not getting fuel delivered to the cly's. Sounds like the pumping head in the injection pump has excessive wear. By getting the engine to fire on starting fluid the rpm's of the injection pump are increased enough to help the pump deliver fuel better by not giving it as much time to leak by the pumping plunger. Anyway, that is my two cents worth, Rod.

robilmichael · Jul 31, 2016

Thanks Rod. I am thinking the same thing - it is not getting enough fuel to the injectors. However, the injection pump was just rebuilt last year. I will call the fellow that did it and get him to look it over.

Thanks.

Case Nutty 1660 · Jul 31, 2016

make sure the fuel shutoff cable has not slipped and is moving the fuel shut off control fully to the "on" fuel position,, even a small amount will short them on fuel and cause this as well
cnt

robilmichael · Jul 31, 2016

Thanks, that was the first thing that I checked. No, that is not the problem. Can the pump plunger that Rod referred to be checked without taking out the pump?

DKase · Jul 31, 2016

Are you sure your pump is not 180 degrees off?

robilmichael · Jul 31, 2016

Thanks, yes, it was running perfect for about a year after the pump rebuild, and will run perfect once started.

1370rod · Jul 31, 2016

To test the pump correctly it has to be removed and run on a test stand. I remember a fellow having the same problem as you. He would pour ice cold water slowly over the pump to cool it down and then it would start. I guess that would thicken the fuel a bit and then the worn plunger could pump it better. Rod.

Hard Starting 188D - Any Suggestions?

robilmichael

Member

1370rod

Well-known Member

robilmichael

Member

Case Nutty 1660

Well-known Member

robilmichael

Member

DKase

Well-known Member

robilmichael

Member

1370rod

Well-known Member

Similar threads