Timing Belt Tension 6M

[btuk00]

Looked everywhere and can not seem to find the proper tension for my timing belt on my 85 with a 6M? I have it rather tight right now but hope someone has an idea for me before I put it all back together and kill something.

Any Ideas?

[lil'devil]

I'm pretty sure there shouldn't be any more than 1/8 in slack b/t the two cam gears?

[RedP85]

Put a new spring on the tensionner, and for sure you will have the proper tension !

[williamb82]

http://www.cygnusx1.net/supra/library/TSRM_MKII/em/EM_011.html

[rabidchimp.com]

Put a new spring on the tensionner, and for sure you will have the proper tension !
I would not trust the spring alone to give the proper tension. I don't measure slack of the belt, and definitely put more pressure on the tensioner than the spring can do.
-Aaron

[Dave A.]

Turn the crankshaft clockwise slightly and hold it to maintain tension on the drive side of the timing belt. Then loosen the tensioner bolt and let the spring take up the slack. Tighten down the tensioner bolt and then rotate the crankshaft clockwise a few times to properly seat and align the timing belt on the sprockets. Repeat the tensioning procedure above one more time and you're done. A new tensioner spring is a great idea since the old spring may have less tension than a new spring due to age, heat, etc..

The timing belt tension will increase as the aluminum cylinder head warms up to operating temp. due to some thermal expansion. If you set the tension using just the tensioner spring alone, the timing belt will be plenty tight once the engine is up to operating temp..

[82MKIILtype]

Turn the crankshaft clockwise slightly and hold it to maintain tension on the drive side of the timing belt. Then loosen the tensioner bolt and let the spring take up the slack. Tighten down the tensioner bolt and then rotate the crankshaft clockwise a few times to properly seat and align the timing belt on the sprockets. Repeat the tensioning procedure above one more time and you're done. A new tensioner spring is a great idea since the old spring may have less tension than a new spring due to age, heat, etc..

The timing belt tension will increase as the aluminum cylinder head warms up to operating temp. due to some thermal expansion. If you set the tension using just the tensioner spring alone, the timing belt will be plenty tight once the engine is up to operating temp..

What he said... :stupid:

Do not over tension a timming belt or ... :nono: You're a very bad man.

[btuk00]

WOW - thanks everyone for the advice, especially for that link William!!! Looks like that will come in handy again.