Thread: Timing adjust.

Dougal - just found this section existed (yes I am slow!)

You are right those 2 bolts are a real PITA to get at! I have managed it a couple of times though, I think with some strange combination of socket extensions... (once beside a cheap hotel in Guatemala - NFI how we had enough tools to do the job!).

One method is to advance until it sounds really rough (even more tractor like) then retard a bit until the engine quietens down. Last time I did it though, I removed the pipe from NO 1 injector and actually measured the timing.

you need a 3/8 drive socket set and a 1/2 - 3/8 drive adaptor with a normal extenton Bar. its a PITA to do at the best of times..

check out one of the threads I did up on tools and the correct timing adaptor is shown but from memory if you spill time#1 to 12btdc your in the ball park.

catch me up when I get back to tge real world and i'll dig up the proper numbers

I backed mine back off a bit.
From the strip down and clean I did, I figured the timing was a little more retarded than it was previously. EGT's were a little higher at cruise being the main suspicion.

I advanced the pump by 1 deg, which should be about 2 deg crank angle. The result was EGT's dropping by about 40 deg at cruise, a little rougher at very low rpm and loss of boost.
I could still get the same max boost, but it shifted about 300rpm up the rev range, to the point where I didn't have enough boost on some hills and EGT's would reach scary levels.
The logical side of me tells me this can't happen. But I convinced myself it did.

I'm now running halfway between then and before, EGT's about 10 deg higher than really advanced but boost arriving when it should.
I should check the spill timing, but the "should" list for my rover is already too damn long.

Originally Posted by isuzurover

I have managed it a couple of times though, I think with some strange combination of socket extensions... (once beside a cheap hotel in Guatemala - NFI how we had enough tools to do the job!).

As I recall we borrowed a couple of extra tools from the guy across the street. I still don't know how I managed to say "Can I borrow your socket extension" in Spanish without getting a punch in the head