[Shotimes] Rookie Timing Belt Question

[Leigh Smith]

See below:
<Leigh>
----- Original Message ----- 
From: "Dave Ulring" <dulring@yahoo.com>
To: <shotimes@autox.team.net>
Sent: Tuesday, February 22, 2005 4:09 PM
Subject: [Shotimes] Rookie Timing Belt Question


> Ok, got a few hours to spend on putting the SHO back
> together and ran into a problem.  When lining up the
> timing belt with the cams, the lines on the belt match
> the notches on the pulleys, how do I know where to
> line up the line with the crank?

There is one dimple in each cam gear, two lines  on the belt, and two raised
marks on the timing cover at 12 noon. All of these must line up at once. On
the lower end, same deal, there is a line on the belt, a dimple on the crank
gear, and a raised boss on the oil pump at about 4:30-5:00 position. Line up
all three at once, actually all nine marks at once. The KOA letters on the
belt must face a specific direction for this all to work. IIRC you read the
letters as if you were standing on the driver's side, and looking over the
engine. Seems backwards, but that is correct.

> I guess I could
> reinstall the PS and Alt belt pulley to line it up,
> but I figured you guys have a method without having to
> reinstall the lower timing belt cover and pulley.  The
> second problem I have is with the timing belt
> tensioner.  I loosened the nut and used a 5 mm hex to
> relieve the tension to remove the belt but then forgot
> to tighten the nut back down.  Therefore the tentioner
> is no longer under tension.  I did not see it spin
> down, but is it safe to say that if I rotate it clock
> wise until tension is built back up and tighten the
> bolt I will be ok, or is the tentioner hosed?

OK, just rotate it clockwise. You'll be OK. I just built my motor and had
the tensioner all apart.  IIRC it only had about a half-spin of pre-load,
and wouldn't spin all the way round anyway, cause it bumped into something.
Twist it farther than required so you can have some slack in the belt to get
it on. Then release the nut so the tensioner can do its job. Rotate the
engine a couple times, and don't forget to tighten it back up, where it is.


> Thanks, you guys are saving me hundreds of dollars.
>
> Dave
>
> 93MTX
>
>
>
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