Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat

 
 
LinkBack Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 12-18-2014, 11:42 AM   #8
Beginner
 
Jamesp's Avatar
 
Join Date: Mar 2013
Location: Houston
Posts: 1,659
Garage
Quote:
Originally Posted by jaykay View Post
Wow I would like to know how this is accomplished with the engine in the car!
That is a good question. Replacing chains with a master link on other engines is not uncommon, the trick here is finding a chain with a master link! Supposing such a chain was available (or even just the master link really), here are some ramblings on how it might be done:

1) lock the engine at TDC
2) back off the chain tensioner for the chain being replaced (or not? this could be one of the harder things to do with the engine in the car)
3) remove a valve cover to get access to the chain
4) remove the adjustable cam sprocket (the one with 4 screws)
5) remove a pin on the existing chain (grinder and drift punch)
6) connect the new chain via master link to the old chain
7) rotate the engine until the master link re-appears
8) install master link on the new chain
9) rotate to TDC and lock the engine
10) install the cam sprocket(s) and time the valves
11) put back together all the stuff you've taken apart

For 5 chain cars some disassembly of the variocam might be involved

Also, the clearance between the block and cam sprocket/chain are tight, so the remaining cam sprocket may need to come out so your not trying to rotate that cam while installing the new chain.

The chain tensioners will really only be in the way when trying to install the master link so finding a tool to pull the chain together might allow skipping the tensioners.

Thinking about the access to everything it's likely easier to pop the engine out of the car before doing this, but it would still beat the heck out of splitting the case.

So for all those who wrench on motor internals, what's missing in the above 11 steps?
__________________
2003 S manual
Jamesp is offline   Reply With Quote
 



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 04:46 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page