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Just replaced timing belts on my 89 GL EA82 followed the link on here, turn crank till 3 marks one cam up turn crank 180 other cam up turn till timing marks install dist adjust to 20deg

 

idles perfect but backfires and now power driving

 

Please Help:eek:

Edited by pepsiguy
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wasn't my first thought but i bet Qman has your demon covered, so start there.

 

you pulled the distributor? if so, double, triple...more...check the alignment, they're easy to mess up and seem unclear sometimes.

 

turn crank till 3 marks one cam up turn crank 180 other cam up
i think you mean 360, which is what it should be, or i'm reading it wrong.
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Did you mean you turned the CAM 180? If you only turn the crank 180...actually, I have no idea what would happen. Turn the CRANK 360, which will spin the first cam (assuming it started with the mark pointing up/lined up with the valve cover seam/timing belt cover notch) so it is pointing down, 180 degrees from where it was.

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I just did this. When I put the belt over the tensioner it pulled the cam to the left one tooth. My bro said it was right, It wasnt. I ended up getting it right on the 3rd shot.

 

Make sure thy line up exactly, I looked through the hole in the cam pully and centered the valve cover gasket in it.

 

now all im waiting on is a petcock for my rad.

 

good luck

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rechecked cam gears

Flywheel at three marks

left is at 12 oclock in line with the grove in the cover

Right is at 6 oclock position

turn flywheel 360 deg to three marks Again

now left at 6 oclock

and right is at 12 oclock

 

firing order was set 1,3,2,4

 

is it possible the valve lash is way off from last person to work on it

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  • 2 weeks later...

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