VWDiesel.net The IDI, TDI, and mTDI source.

Engine Specific Info and Questions => IDI Engine => Topic started by: veedub on March 22, 2005, 05:52:25 pm

Title: 91 Jetta TD surging?
Post by: veedub on March 22, 2005, 05:52:25 pm

My 91 Jetta TD surges when I get to around 3000rpm.  It is not very noticable, but still quite annoying.  Does anyone have any ideas as to what might be causing this?

Regards

Title: 91 Jetta TD surging?
Post by: dieseltech on March 22, 2005, 07:09:05 pm

there are 4 bolts that hold the injection pump in. 3 of them are on the flange that holds it to the timing cover assembly. the other is under where the injector lines come out of the pump. if the one below the injector lines is loose or gone, it can cause this.

could be another problem but i would check there first

Title: Re: 91 Jetta TD surging?
Post by: chrissev on March 22, 2005, 07:13:46 pm

Quote from: "veedub"

My 91 Jetta TD surges when I get to around 3000rpm.  It is not very noticable, but still quite annoying.  Does anyone have any ideas as to what might be causing this?

Regards

turbo lag?

Title: 91 Jetta TD surging?
Post by: veedub on March 22, 2005, 08:54:36 pm

All 4 of those bolts are tight.  Any other suggestions?

Title: 91 Jetta TD surging?
Post by: Dr. Diesel on March 22, 2005, 08:59:39 pm

it's the max speed  govenor spring shouting, "shim me! shim me!"

Title: 91 Jetta TD surging?
Post by: Patrick on March 23, 2005, 03:25:24 am

Quote from: "Dr. Diesel"

it's the max speed  govenor spring shouting, "shim me! shim me!"

 :lol: