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murn murn is offline
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Join Date: Mar 2004
Location: Houston, TX
Posts: 61
Question Problems tensioning the timing belt

Into the final stages of replacing a blown headgasket on my 86' 951. I'm following the procedure as outlined on Clark's Garage and the factory manual, but using the Krikit tool instead.

After I get 4-5 readings of ~37-38 lbs and I turn the cam sprocket back to TDC (from the 10 degree or 1-1/2 tooth counterclockwise position) I loose the tension on the belt. If I continue to rotate the sprocket 360 degrees clockwise back to TDC there are times when I recheck tension and it will be OK again, but it will also fluctuate from a low of ~20 lbs to 60-70 lbs.

My balance shaft belt is tensioned properly and does not fluctuate in tension like the cam belt as I rotate the cam 360 degrees.

any idea what I'm doing wrong?
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1986 944T (for sale)
2003 Boxster S

Last edited by murn; 07-03-2005 at 06:05 PM..
Old 07-03-2005, 02:32 PM
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