Timing chain

Big Mat · May 17, 2013

I presume you mean camshaft sprocket? That doesnt move in or out.

jamesmartin · May 17, 2013

not much left ,is it possible to vid it whilst turning it till it comes off

Big Mat · May 17, 2013

I can try in the morning, its chucking it down out there now!

jamesmartin · May 17, 2013

seems very strange, will be nice to see reason

Big Mat · May 18, 2013

It does not seem to be doing it like it was now, there appears to be now slipping as such, but i set the timing and after a few turns round i lined marks up and ep mark is 6mm off the pointer.

I have noticed that where the join in the chain is it does not sit right on the sprocket. It leaves a gap compared to the other links which sit flush.

Off with the chain and i noticed that where the join is, the join plate that can be removed has allowed the link gap to be bigger that all the others causing an un even fit.

The holes on it have become ovaled.

Now what i'm thinking is that this dodgey link is causing the chain to move slightley and put the timing out?

jamesmartin · May 19, 2013

its not good ,but any slack gained through wear which there will be on an old engine retards timing

Freelaner · May 19, 2013

Can this be offset by turning the dizzy?

Or is a new chain needed

jamesmartin · May 19, 2013

somewhat but that wont help the cam which will matter once its worn enough

Freelaner · May 19, 2013

New chain then

jamesmartin · May 19, 2013

yes ,plus they dont normally come with a joiner

Big Mat · May 19, 2013

I did think the join looked abit dodgey, not surprising with some of the bodges on this landy!

New chain it is then!

Big Mat · May 25, 2013

Replaced the chain and some other bits and now got it all rebuilt and running. Smoking quite alot so need to get pump in the right place.

jamesmartin · May 25, 2013

did you actuially set cam using dti by the book and skew gear lined up 20 degrees tp front stud ?

Big Mat · May 25, 2013

yes i did

jamesmartin · May 25, 2013

good just a matter of getting pump right then ,was it marked or just doing it by moving it

Big Mat · May 25, 2013

Couldnt see any marks on pump, going to just move it 1mm at a time untill i find the right spot.

Big Mat · May 26, 2013

Think i've got it, runs pretty much clear at idle, but on initial acceleration bit of black which then clears almost completley.

tacr2man · May 26, 2013

IIRC the mark is inside the pump insp cover ,( but it is a very long time ago now:Cry: ) but it sounds like you pretty much got it . a diesel needs to sound crisp , if it sounds soft then you need a bit more advance on the injection point .

jamesmartin · May 26, 2013

Big Mat said:
Think i've got it, runs pretty much clear at idle, but on initial acceleration bit of black which then clears almost completley.

sounds good ,worth marking it in case you ever need to remove it again

trax · May 28, 2013

Big Mat said:
Think i've got it, runs pretty much clear at idle, but on initial acceleration bit of black which then clears almost completley.

Excellent, well done on getting it running

glad you didn't give up. :clap2:

Timing chain

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