Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

 
 
LinkBack Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 08-16-2016, 12:35 AM   #2
Registered User
 
Steve Tinker's Avatar
 
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 1,522
patssle,
I can't help you with the leak down test as its a bit more complex than a simple compression test, but this is what I do to check compression. You can do it on your own, but its easier if there is a second person holding the accelerator open & turning over the car on the starter motor.
The test unit should lock in at the maximum indicated pressure (at least mine does) so there is no need to eyeball the max number and hope you saw correctly.

1) The engine should be at operating temperature, or at least quite warm.
2) Remove the fuel pump fuse. Remove all 6 spark plugs - this enables the engine to spin more freely on the starter motor.
3) Screw in the tester to the first cylinder spark plug hole and have helper A) put foot flat down on the accelerator & B) crank the engine for 4-5 seconds - record the max reading.
4) Repeat for all other cylinders.

Hope this helps - let us know what you find....
__________________
2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
Steve Tinker 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 10:19 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