TwinTurbo.NET: Nissan 300ZX forum - To see if the belt/and or idler pulleys were still intact.
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Subject To see if the belt/and or idler pulleys were still intact.
     
Posted by doug8867 on August 08, 2008 at 4:38 PM
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In Reply To Re: Re: Have removed the top left cover and inspected the belt? posted by mean_ass_devildog21@yahoo on August 08, 2008 at 11:47 AM
     
Message Unfortunately, it sounds like something slipped, or broke and caused you
to bend some valves which would explain the sudden loss of power. Won't
be cheap to fix. :-(

One theory would be that the auto tensioner was not properly set during
the timing belt change. It is supposed to be set the proper 4mm distance,
then let stand for 5 or 10 minutes, and then check the position again, and
readjust as necessary. It will want to move. Mine took 3 adjustments
before it would stay in the proper position. If it wasn't reinspected after the
intial adjustment, it's possible it moved after the belt was installed and you
drove it for a couple hours which caused the belt to slip and the cylinders
to be out of time, damaging the valves.

I can't really think of anything else that would cause you to lose
compression in 3 cylinders so suddenly, but perhaps others will have an
idea.


     
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