Timing chain tensioner/ticking advice?

[racer]

I've been told a Marina t/chain tensioner will work on a duplex t/chain .I will need an A-Plus front plt,and t/chain cover ,cos it wont fit in my existing cover? Will the eng. mounts be the same? Also will need to drill /tap front plt. for tensioner ? Regarding the 'ticking' I was also told to check the run out (level)of the sprockets. Anyone know about this? cheers ,ROD

[57traveller]

To check the run out I would suggest using a dial indicator attached to the front plate. Very unlikely the cranKshaft wheel is out but the camshaft sprocket is a little more easier to distort, I've done this myself when trying to remove when reneweing timing chain. Alignment between the two is checked with a straight edge placed accross the camshaft sprocket and extending to the crankshaft sprocket. Any discrepancies are adjusted by adding or removing thin shims to or from behind the crankshaft wheel.

[rayofleamington]

The A-plus is better but if you go for a normal version with a duplex kit it is more than good enough, quieter and less prone to wear.

[racer]

Sorry Ray ,the a-plus what is better? I already have duplex t/chain .

[MrA.Series]

I think Ray means the A-plus front cover, tensioner and such, is a better set up than just the standard A cover with a duplex, but with the standard setup and duplex being fine enough as it is.

[racer]

Oh ,now I see! I fitted the duplex to avoid noise ,stretching etc. but it appears to have worn quickly (ie if the ticking is actually this) I wondered whether it was mis-aligned ,therefore worn on the inner edge of the links causing it to move around sideways on the sprockets?When you listen with a screwdriver to the t/chain case it does sound similar to the ticking I'm getting .Really need to find out if the a-plus front cover etc will go on .