Gen1 SHO

[Steelranger2]

I have a issue with my 1990 sho, after it gets up to operating temp it seems to make a ticking noise under the valve cover it sounds like the timing gear. Has anyone had this problem? Thanks for the feedback!


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[luigisho]

how loud is it? injectors make a ticking noise normally. at this age a pulley or tensioner bearing could be wearing out

 

[Steelranger2]

It's not really a ticking noise it's more like the cam shaft chain is rubbing on the valve cover


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[droptSHO]

The pad on the cam chain tensioner could have worn off and the chain my be grinding on it. That happened to my 94.

 

[Steelranger2]

I'm gonna pull the intake and valve cover tomorrow, is there anything I should look out for?


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[sperold]

Check the valve lash and see if any of the shims are deeply dished.
Before you dismantle anything, use a wooden handle or a chopped up hockey stick (to listen) to try and figure out if it coming from one bank which will make your quest easier.