Re: Why does my diesel not rev when in gear?
Based on our experience, it's a good idea to remove the injectors and have them tested (and often also go ahead and replace the tips) about every 1000 hours, give or take.
And on the subject of needing "fuel and air" I have found that when our engine has problems with starting or throttling up, it's always the fuel system -- miniscule air leak (vacuum side) around a fitting or at one of the gaskets in my Racor. Tiniest trace of a air leak may cause symptoms like that.
Last edited by olson34; 04-09-2012 at 02:53 PM.