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Drew1209
Monza


Joined: 31 Aug 2016
Posts: 151



PostPosted: Fri Nov 30, 2018 7:32 pm    Post subject: Lifter renewal Reply with quote

I’m going to be giving a mate a hand changing the tappets in his car, this will be on bank 2. The car has an intermittent knocking at idle but clears when the revs lift, I posted about this previously.

Is there any guides on this, Mainly for timing the car up and I’m also going to need something for locking the cams, and info would be much appreciated
 
  
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deMort
Zolder


Joined: 21 Mar 2015
Posts: 5533
Location: Brighton


PostPosted: Fri Nov 30, 2018 7:51 pm    Post subject: Reply with quote

996 manuals can be downloaded here ..


http://911uk.com/viewtopic.php?t=83491

An idea of the tools needed but this is more than you need so just a suggestion for you to search ..

https://www.ebay.co.uk/itm/222170095285

It depends on the year as to what kit you need .
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Drew1209
Monza


Joined: 31 Aug 2016
Posts: 151



PostPosted: Fri Nov 30, 2018 8:26 pm    Post subject: Reply with quote

Thanks for the links deMort, the car is a 1999 C4

Are we better going to Porsche for the lifters also is there anything else you would advise we do when we’ve got it timed up etc.

Thanks again
 
  
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deMort
Zolder


Joined: 21 Mar 2015
Posts: 5533
Location: Brighton


PostPosted: Fri Nov 30, 2018 8:39 pm    Post subject: Reply with quote

Tappet replacement is pretty straight forward .. not the easiest of jobs though .. be VERY carefull sealing the cam cover .. not too much sealent .. the grooves around the cam cover green bungs .. you DONT want sealent to block these .

I put the sealent on then use a ruler to spread it out and wipe off any excess sealent .

lifters .. anywhere you can get them , they are all the same as far as im aware .

Im not sure the year of your car .. if its vario cam plus then easy , just vario cam and you have to align the chain on the cams .. instructions though are on the download .

Road test the car .. 10 miles then inspect .. if a problem then you will have oil leaks at that point ... im thinking too much sealent and the green bungs get pushed out for this check .

EDIT ..

Read and understand the instructions BEFORE you do this job .

Second Edit .. align the chain as per instructions on the download . you have a chain linking the cams . .. if the slippers are worn then replace .
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Drew1209
Monza


Joined: 31 Aug 2016
Posts: 151



PostPosted: Fri Nov 30, 2018 8:59 pm    Post subject: Reply with quote

Perfect thanks again, it’s the vario cam version also.
 
  
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Marky911
Kyalami


Joined: 04 Jun 2009
Posts: 1921



PostPosted: Fri Nov 30, 2018 9:25 pm    Post subject: Reply with quote

As Demort says, you'll definitely want to stick a new set of cam chain guide pads in.
The head ones get the most stick due to the size and profile of them.

Inexpensive and a total no-brainer while you're in there. They can start wearing from as early as 50k miles.
Here are mine after 65k.

 
  
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