Timing belt install

907mge · 02-01-2011, 05:02 AM

The belt should be pretty tight to get on in the correct order and if you rotate it a few times the marks should always line up.

Busted Knuckles · 02-01-2011, 10:47 AM

Superwhite, it sounds like you did everything right. Rotating the engine twice will even out the tension in the belt. As a check, just push on the belt between the cams to make sure the tension is even with no sloppiness. When I did my timing belt, I had to adjust the exhaust cam slightly with the dowel pins to get the timing dead on. Did yours need any adjustment?

cre · 02-01-2011, 07:58 PM

Just put a beam type tension wrench on each cam bolt and rotate toward eachother until the reading matches on both... what's so hard here?

superwhite · 02-02-2011, 07:09 AM

Quote:

Originally Posted by Busted Knuckles

Superwhite, it sounds like you did everything right. Rotating the engine twice will even out the tension in the belt. As a check, just push on the belt between the cams to make sure the tension is even with no sloppiness. When I did my timing belt, I had to adjust the exhaust cam slightly with the dowel pins to get the timing dead on. Did yours need any adjustment?

Suprisingly no, all of the timing marks lined up. I also checked at point A and B per the TSRM witha Kricket tension checker as well as beween the cam gears and they all checked the same. I'm not sure how to measure the downward pressure on the belt and measure the deflection distance at the point they indicate.

It seems like it would be very hard to be accurate. The Haynes manual doesn't even mention that step!

CRE: I found the directions in the TSRM confusing in reguards to thier method of checking for proper tension between the cams after turning the gears toward each other.

02-01-2011, 10:47 AM	#2
Busted Knuckles 12psi boost Join Date: Dec 2007 Location: Atlanta Posts: 300	Superwhite, it sounds like you did everything right. Rotating the engine twice will even out the tension in the belt. As a check, just push on the belt between the cams to make sure the tension is even with no sloppiness. When I did my timing belt, I had to adjust the exhaust cam slightly with the dowel pins to get the timing dead on. Did yours need any adjustment? Last edited by Busted Knuckles; 02-01-2011 at 10:50 AM.

02-01-2011, 07:58 PM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Just put a beam type tension wrench on each cam bolt and rotate toward eachother until the reading matches on both... what's so hard here? __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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02-01-2011, 05:02 AM	#1
907mge 20psi boost Join Date: Dec 2009 Location: Harrisburg Posts: 759	The belt should be pretty tight to get on in the correct order and if you rotate it a few times the marks should always line up.