 I made an engine crank, Tested Cylinder Pressures |
|
|
|
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. |
|
|
  |
| tracks914 |
 Nov 27 2003, 09:08 PM
Post
#1
|
|
Canadian Member  Group: Benefactors Posts: 2,083 Joined: 15-January 03 From: Timmins, Ontario, Canada Member No.: 153 Region Association: None   |
I made an engine crank to roughly test my cylinder pressures before I completely tear down my engine. It connects to the front pulley and worked pretty well. I wanted a baseline to judge the work I am about to do.
Cylinder 1 - 112 psi Cylinder 3 - 110 psi Cylinder 4 - 112 psi (IMG:style_emoticons/default/smilie_pokal.gif) this is going pretty good for a cold engine and a hand crank. Cylinder 2 - (IMG:style_emoticons/default/sad.gif) 25psi fading to 0 psi (IMG:style_emoticons/default/headbang.gif) (insert a Hommer "dope") I guess I will have more work to do. (IMG:style_emoticons/default/smash.gif) Air is bleeding past the exhaust valve. (and yes I did check to see if there was clearance between the rocker and the valve when it was closed) It just adds to the fun of owning a teener. (and the pocket book ) (IMG:style_emoticons/default/clap56.gif) |
   |
 
|
| davep |
Nov 28 2003, 03:23 PM
Post
#2
|
|
914 Historian Group: Benefactors Posts: 5,138 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
You might want to try getting that exhaust valve open and blowing air through the spark plug hole. or the exhaust port just in case there is a piece of crap stuck on the seat. See if you can rotate the valve.
DaveP |
|
|
|
| tracks914 |
Nov 28 2003, 10:01 PM
Post
#3
|
|
Canadian Member Group: Benefactors Posts: 2,083 Joined: 15-January 03 From: Timmins, Ontario, Canada Member No.: 153 Region Association: None |
Been there, done that.
No biggy though, I have my own valve grinding machine and can do my own heads. It's just more work than I had hoped, but when they are done... (IMG:style_emoticons/default/mueba.gif) (IMG:style_emoticons/default/mueba.gif) (IMG:style_emoticons/default/mueba.gif) |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 7th May 2024 - 10:42 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.