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-   -   Replacing Timing belt (http://www.toyota-supra.info/forums/mkiii-supra/13614-replacing-timing-belt.html)

Paul_NJ 03-20-2009 11:19 AM

Replacing Timing belt
 
I've been reading the timing belt removal procedure in the TSM, and it seems like they take off the belt by removing tension on the belt tensioner, then remove the cam and crank timing gears, then they reinstall the gears, and finally put the new belt on and tighten it up with the tensioner . Why remove the any of the gears at all? Is it just to replace the seals? That's not mentioned in the TSM. Otherwise it would be a lot easier to just switch belts. How difficult is getting the gears off and changing the seals? I see they call out a SST for removing the timing gears. Any suggestions on that?

IHateHacks 03-20-2009 01:11 PM

You don't need to remove the cam or aux shaft gears to replace the timing belt.

Why the TSRM tells you to remove the gears when replacing a timing belt.....because the TSRM is a joke, that's why.

burton51m 03-20-2009 04:52 PM

If you don't want to remove the gears then just skip that step. To change the seals you have to take the camshafts out.

Bill UK 03-20-2009 07:59 PM

IHateHacks is right; you donít need to remove the pulleys. As you know the most difficultly part is removing the crankshaft pulley. You would have thought Toyota would have designed the bottom cam belt cover in two sections to enable the belt to be changed without removing the crankshaft pulley. If you need to change the cam seals at any time; remove the cam covers and you will see a section of the camshafts that have two flats on it to place an open-ended wrench or spanner, this will hold the camshaft in place whilst undoing or tightening up the cam pulleys. Lots of good info HERE

Paul_NJ 03-21-2009 12:20 PM

Thanks for the replies. Bill, that link you shared with the series of images is terrific, thank you. That's also a great site . . . found an electonic parts manual on there. Once I buy 3 more M8x1.25 bolts I'll get that crank pulley hole spacing measured.

Bill UK 03-21-2009 05:35 PM

These are useful sites Paul if you didnít already have them Repair Manual and Parts and Guides


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