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Engine Specific Info and Questions => IDI Engine => Topic started by: Powjetta on March 26, 2006, 04:10:11 am

Title: Timing belt idler pulley
Post by: Powjetta on March 26, 2006, 04:10:11 am

I'm new here as I just bought a '86 2 door jetta.  The odometer was broke so I am replacing the timing belt.  It looks pretty good but the back had some lines on it like it was sliding on the idler pulley and when I checked the pulley it seemed very tight.  I can turn it with the end wrench on it and sometimes after I get it started I can turn it by hand but not always.  Shouldn't this turn a little easier?  Is there a bearing in behind it?  My book makes no mention of this pulley that I see, the larger diameter pulley between the pump and crank.  I did a search but couldn't find any reference to this pulley.  Let me know if anyone has ever seen this, thanks.

Title: Timing belt idler pulley
Post by: wyldman on March 26, 2006, 07:24:09 am

That's the intermediate shaft.It turns the oil pump and vacuum pump.It may be stiff,as it has to work to turn everything else.You could also have a bad intermediate shaft bearing.

You could pop the vacuum pump off and see if it frees up.