Installing pulleys on cams - Volvo Forums - Volvo Enthusiasts Forum


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Old 07-15-2018, 07:25 PM
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Default Installing pulleys on cams

I have a 98 s90 with the 24 valve I6. Had to pull the head to be resurfaced and reinstalled.well when we pulled the head off we also removed the pulleys/sprockets from the cams. These sprockets have three elongated holes, for fine tuning of the timing. But the biggest problem is that i have a 1 in 3 chance of putting the sprockets in the same position that they came off. Does anyone have any insight as to how they should go on the cams? I believe this to be an interference motor and would like to not have to do valves immediately following this project.
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Old 07-16-2018, 08:36 AM
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You have to use the alignment tool that attaches to the rear of the camshafts to hold them in the correct position. I do not recommend that you try to "eyeball" this as there is too much variation trying to do it another way.

Here is the tool.

https://www.ebay.com/itm/For-Volvo-C...ment.TRS0.TSS0
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