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Looks like I have a bad valve lifter...

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  #61  
Old 09-17-2012, 11:17 PM
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Originally Posted by pumalex
I suppose that since you need to remove the camshaft, you need to have all the special tools for this car to time them correctly? So taking the engine out isn't necessarly the hard part (longest but not hardest i guess)?
It was about 22 hours total for the job start to finish. Yes, special tools are needed to adjust the timing of the motor. You definitely want someone who knows what they are doing. I put an hour of track time on the car this past Sunday and the car ran like a champ. My techs are top notch.
 
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Old 11-22-2013, 02:53 AM
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Hi pwdrhound,

is the car still running silent without clicking noise after the new lifters? I wonder if it came back over time. Have to make a decision if this is worth to do. My engine rebuild is coming soon.

Andreas
 
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  #63  
Old 11-22-2013, 08:46 AM
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Originally Posted by GT996
Hi pwdrhound,

is the car still running silent without clicking noise after the new lifters? I wonder if it came back over time. Have to make a decision if this is worth to do. My engine rebuild is coming soon.

Andreas
Yes, engine is very quiet still without any clicking noises. I have 30 track days on the engine since the new lifters and all is great.
 
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  #64  
Old 11-22-2013, 08:46 AM
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Originally Posted by GT996
Hi pwdrhound,

is the car still running silent without clicking noise after the new lifters? I wonder if it came back over time. Have to make a decision if this is worth to do. My engine rebuild is coming soon.

Andreas
Absolutely do the 997 lifters. P/N 996.105.255.25

Early cars 01s and some 02s have 996.105.255.10

Later cars have 996.105.255.20 which are supposed to be less prone to failure yet looks identical to the .10s . The .25s (997 lifters) have a slightly dfferent design.
 
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  #65  
Old 11-22-2013, 09:55 AM
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Thanks a lot
 
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  #66  
Old 11-22-2013, 11:32 AM
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Originally Posted by GT996
Thanks a lot
Make sure you do the exhaust lifters 996-105-041-72 also. That is what failed on my car. Do all 24 lifters
 
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  #67  
Old 11-22-2013, 12:58 PM
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Originally Posted by pwdrhound
Make sure you do the exhaust lifters 996-105-041-72 also. That is what failed on my car. Do all 24 lifters
How did the exhaust lifter fail? The new ones are same as they old ones all the way back to 2001..

Edit saw your collapsed exhaust lifter few pages back.
 
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Last edited by Mark @ AIM Performance; 11-22-2013 at 01:14 PM.
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  #68  
Old 11-22-2013, 03:05 PM
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Originally Posted by prodigymb
How did the exhaust lifter fail? The new ones are same as they old ones all the way back to 2001..

Edit saw your collapsed exhaust lifter few pages back.
Read my post #47 for description and picture of the failed exhaust lifter.
 
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  #69  
Old 10-22-2017, 05:03 PM
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Pwdrhound, is your engine still quiet and smooth after few years?
My engine hss just started making that ticking noise after a recent oil change, the noise is better a few minutes after start but it is definitely still there.
Does it worth doing all the lifters when engine is out?
Thank you.

Originally Posted by pwdrhound
Yes, engine is very quiet still without any clicking noises. I have 30 track days on the engine since the new lifters and all is great.
 
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  #70  
Old 10-23-2017, 04:31 AM
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Is it safe to drive when it makes such noise?
 
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