Early 93 Mechanical Pump Motor Not Starting... [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Early 93 Mechanical Pump Motor Not Starting...


MrTailLight
10-02-2005, 11:24 AM
this rig will start right back up after it is hot and running, but if you wait 15-20 minutes, it will not fire up....like it is not getting fuel. it starts fine cold, and runs long after it is fired up, but if you wait, it wont start.

no PMD on the injector pump, as this model does not have it.

any suggestions?

this post is for a friend of mine that is not internet inclined, you can call him with your info if you want at 419-295-3240, his name is Ted.

thanks guys!!
Steve

Texas Diesel Guy
10-02-2005, 12:01 PM
Hard Start hot with a 4911 pump, almost a guarantee that your injection pump needs a new head&rotor.

That 15-20min of sitting allows the pump and fuel inside to heat soak. The fuel loses viscosity and clearances inside the head are higher causing internal leakage.

CanadianRigger
10-02-2005, 01:46 PM
Nice Avatar Mr.T....:D

MrTailLight
10-03-2005, 09:00 AM
yea, i like it also! i friend of mine made it up for me....maybe he can do one for you

MrTailLight
10-03-2005, 09:04 AM
TDG....you hit it on the head! literally....bad head and that was the problem.

thanks,Steve