Craig, Depends on the engine. On a 603, you don't need to pull the pump. On a 602, I'm not sure... if there's enough room to remove the rear governor cover (six screws on the rectangular flat plate), you might be able to. Remember, the tranny may upshift prior to the tick marks on the speedo face.
To see if you're getting to the proper governor speed, try leaving the gear shift in "L" and pinning the throttle... the engine should pull to approx 5100rpm (+/-) and stay there. If you're well under 5000, then you need to troubleshoot further... try the no-load test (floor it in park for a couple seconds and see if it goes to 5100), if not, you may have issues with air or fuel delivery... :) -dm > ------------------------------ > Date: Wed, 22 Feb 2006 22:53:02 -0700 > From: Craig McCluskey <[EMAIL PROTECTED]> > Subject: Re: [MBZ] RPM Redline > > > On Wed, 22 Feb 2006 19:26:06 -0700 "Dave M." <[EMAIL PROTECTED]> wrote: > > > Old spec was 5150rpm, +/- 150rpm, or 5000-5300. Later specs from the > > WIS specify +/- 250rpm, which is a 4900-5400 range. Both are limited > > by a setting inside the rear cover of the injection pump. I turned > > mine up to about 5300-5400. > > Do you have to remove the injection pump to do that? When I had my > injection pump checked on a test stand in Albuquerque, the fellow > apparently turned down the governor and now I can't make it to the ticks > for each of the gears (especially frustrating for the big hill south of > Santa Fe where I used to be able to go up at the speed limit of 75). > > > Craig
