2.5 Petrol timing chain replacement

Happy New year all.

I'm having another Doh! moment!

Have worked on and owned Landy's for years but at the moment seem to keep arriving at roadblocks!

I am doing a freshen up of a 2.5 petrol engine...... had one years ago in a series and is a particular favourite... will be replacing a 12j in my 90

Was a good runner but the camchain was at it's service limit so today went to do the swop, checked manuals, set timing remove and replace...... but no...not enough slack.

Took the original off by removing the cam sprocket, all tensioners and such are removed.

Compared chains, both same pitch and number of links, new one very slightly shorter due to lack or wear as expected.

But no way can I fit it, tried putting it around the cam sprocket and then bolting it up but there is too little slack to get it square and installed on the cam.

I must be missing something blindingly obvious, help please!!

That's worrying, as I'm about to do this job.
The manual says to align the cam sprocket on the engine, then remove the sprocket again.

Then it instructs you to assemble the chain on the sprockets BEFORE fitting the sprockets and chain assembly to the engine.

Only then fit the damper and then the tensioner.

Wildefalcon said:

That's worrying, as I'm about to do this job.
The manual says to align the cam sprocket on the engine, then remove the sprocket again.

Then it instructs you to assemble the chain on the sprockets BEFORE fitting the sprockets and chain assembly to the engine.

Only then fit the damper and then the tensioner.
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Ah that's really handy Wildefalcon, my manuals don't mention that ( Haynes and the generic LR one for all engines )
Think they are still in the world of the series!
Probably will get on with that tomorrow....... recon it will be a bit of a pain lining it all up.........

I agree, there's only a couple of pages in the 110 manual about the 2.5 petrol.

I'd use tippex or something to count the number of links of chain to get the cogs lined up with the timing marks.

All done, actually wasn't too bad, lined them up and then shuffled the chain one link at a time to get it spot on.
That is with the engine on a stand in the garage...... may be a bit tougher installed!
Ta muchly Wildefalcon

Thank you for letting me know, I'm only at the "clean the block" stage: