Timing Belt Change How-To - Page 4 - Toyota Sienna Forum - siennachat.com
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post #46 of 47 (permalink) Old 05-18-2015, 09:22 AM
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Re: Timing Belt Change How-To

Originally Posted by clemsyn View Post
I'm having issues aligning my marks on replacing my belts. My camshafts align fine (TDC) but my crankshaft won't align to TDC. It's like 3 teeth short. If I align my crankshaft, my camshafts don't align. Any advice would be appreciated. Thanks.

Edit: BTW, I think I know what I did wrong (stupid me..) I was hand cranking the camshaft instead of the crankshaft, I did feel a slip while cranking the camshaft clockwise but never did happen again. Can I just align the crankshaft when I get the belt off? Can anyone help me in my dilemma. Thanks.
Yes once the belt is off you can rotate each cam or crankshaft manually. Make sure to only rotate it clockwise.

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post #47 of 47 (permalink) Old 05-18-2015, 12:12 PM
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Re: Timing Belt Change How-To

Originally Posted by jc View Post
Yes once the belt is off you can rotate each cam or crankshaft manually. Make sure to only rotate it clockwise.
Thanks, I hope I didn't break anything (concern of that slipping while turning the camshaft clockwise). I'll left the camshaft (since both where in aligment) where it was, removed the tensioner and removed the old belt and turned the crankshaft by hand to TDC. BTW: My belt had 120,000 miles life and still looked good, the teeth where still in good condition but I did notice quite a few belt dusts on the tensioner so I have a feeling it was going to give pretty soon. The seals on the camshafts looks OK and the water pump is pump looks great. I'm planning on just changing the belt, tensioners (Gates Brand) and let it run for 20,000 miles. Then I will go back in and replace the seals, tensioners and water pump with AISIN kit.

My other concern was the seal (gasket) on the upper timing belt cover. There seem to be a few areas where the gasket is broken. Can I just put a gasket sealer on it when putting it back?
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