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Replacing a camshaft seal on a Lesus Es300

Tiny
MARKNAUTH
  • MEMBER
  • 2000 LEXUS ES
  • 106,000 MILES
Help!
I replaced the camshaft seal on my 2000 Lexus es300 and replace everything the same way I found it. The car starts but sound loud. Sounds like a knocking in the head. No bolts are loose, everything seems fine, double check the timing after and that was also good. What happened? Was the camshaft suppose to be in a certain position? Caps removed and tighten in a certain sequence? Did I bend the cams?
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Monday, January 9th, 2012 AT 1:39 AM

6 Replies

Tiny
MHPAUTOS
  • MECHANIC
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Did you tighten the cam gear up correctly? Is the valve timing correct and the tensioner ok?
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Monday, January 9th, 2012 AT 1:45 AM
Tiny
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All the caps were tighten up evenly to approximately 13 ft lbs. However, no specific sequence was followed for removal or installation. This is a vvt engine not sure if they require one. Timing is correct and the tensioner is good.
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Monday, January 9th, 2012 AT 8:40 AM
Tiny
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As long as the caps are pulled down evenly there should not be a problem, I will look into the system and post back a bit later.
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Monday, January 9th, 2012 AT 8:53 AM
Tiny
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Also does the cams need to be in a certain position in order to remove and does the sprocket need to be in timing?
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Monday, January 9th, 2012 AT 10:10 AM
Tiny
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When ever the cam belt is removed, the engine should be set at TDC top bead centre, this will align up all the timing marks, was this not done?
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Monday, January 9th, 2012 AT 9:39 PM
Tiny
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No. I used a wire-tie to lock the belt in place with the sprocket. I doubled the the timing again and it is correct.
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Tuesday, January 10th, 2012 AT 1:08 AM

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