[Vwdiesel] NA injection pump runs rough when

[lbaird119 at aol.com]

Could be several things:  
  Idle could be a little low (adjust the screw)
  Air in the lines (find the leaks and tighten clamps, replace hoses, etc)
  Timing is set incorrectly (check, via the vw part number on the pump, what the correct timing is and check that it is set correctly.)
 
  Might be more but those are the common ones I can think of right off.
     Loren
 
 
-----Original Message-----
From: ken1 <ktzkarz at embarqmail.com>
To: 'diesel' <vwdiesel at vwfans.com>
Sent: Tue, Feb 16, 2016 6:14 pm
Subject: [Vwdiesel] NA injection pump runs rough when

I have a request from a neighbor who has a 1981 1.6L NA diesel caddy. He has a pump that was rebuilt for him about 40k to 50k miles ago. He said his pump has always started, but the idle was rough and low and , he has to give it more pedal to keep it running until it warms up; then the pump and engine runs and responds fine. After the initial cold start, the  engine starts, idles and responds fine. I told him I know nothing about pumps; but perhaps the cold start was not adjusted correctly. What else could cause the cold start problem? Thanks.   -- 1982 caddy 1.6L NA running1967 convertible bug running1980 caddy project 1991 2 door Jetta TD restoration in progress_______________________________________________Vwdiesel mailing listVwdiesel at vwfans.comhttp://www.audifans.com/mailman/listinfo/vwdiesel