 first compression test fails, second passes, can compression improve? |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| siverson |
 Aug 11 2013, 12:16 AM
Post
#1
|
|
Advanced Member  Group: Benefactors Posts: 2,458 Joined: 5-May 03 From: San Diego, CA Member No.: 654 Region Association: Southern California 
 |
Hi,
I'm looking at a -6 that had on compression test on 7/24 and the results were: 1-160 2-170 3-155 4-150 5-170 6-110 That car has sat for quite a while but the owner says it runs well. He asked the same shop to test the compression on 7/31 and now cyl #6 is showing 140. Can compression improve when taking a car out of storage and driving it? Or is this just sloppy work on the shop that did a PPI? -Steve |
   |
 
|
  |
Replies
| JoeSharp |
Aug 11 2013, 06:03 AM
Post
#2
|
|
In Irvine, Ca. May 15-18 Group: Members Posts: 3,947 Joined: 9-July 03 From: DeLand, Florida Member No.: 898 Region Association: South East States |
(IMG:style_emoticons/default/agree.gif) Yeah Steve, what he said.
|
|
|
|
| rgalla9146 |
Aug 11 2013, 06:11 AM
Post
#3
|
|
Advanced Member Group: Members Posts: 4,743 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
|
QUOTE(Joe Sharp @ Aug 11 2013, 05:03 AM)  maybe forgot to hold the throttle open for # 6 ? |
|
|
|
Posts in this topic
siverson first compression test fails, second passes Aug 11 2013, 12:16 AM
PancakePorsche Yes it can. rings could free up, valves seats can ... Aug 11 2013, 12:49 AM
siverson Got it, thanks.
-Steve Aug 11 2013, 11:57 PM Woody Could have had a chunk of carbon holding a valve o... Aug 12 2013, 08:15 PM
scotty b Once it runs again, it can improve even more as ev... Aug 12 2013, 08:24 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 11th May 2025 - 11:04 AM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.