Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

> #4 Cylinder intake valve stuck open
gnomefabtech
post Mar 19 2023, 09:20 PM
Post #1


Member
**

Group: Members
Posts: 96
Joined: 27-December 22
From: Los Angeles
Member No.: 27,063
Region Association: None



So I'm trying to resurrect this 76 (or is it a 75?) that I just bought and it doesn't have compression on the #4 (rear right) cylinder. After some tests with compressed air it's clear that the intake valve isn't closing. I pulled the valve cover and the rockers move OK but that valve does not close all the way. Everything else looks good.

I have a lift but was wondering if I could pull that head without dropping the engine. It looks like there is room but I'm not sure about the engine tin etc. Seems like either the valve is bent or somehow stuck and maybe I can just fix the one thing there.

Anyone pull heads while the engine is still in the car?

User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
gnomefabtech   #4 Cylinder intake valve stuck open   Mar 19 2023, 09:20 PM
VaccaRabite   Valve seat is probably dropped. You need to pull t...   Mar 19 2023, 09:27 PM
gnomefabtech   Thanks for the reply. I'll pull off the intake...   Mar 19 2023, 09:37 PM
930cabman   Thanks for the reply. I'll pull off the intak...   Mar 20 2023, 05:45 AM
VaccaRabite   Thanks for the reply. I'll pull off the intak...   Mar 20 2023, 06:03 AM
Superhawk996   Drop the engine. First - because that is the pro...   Mar 20 2023, 07:08 AM
technicalninja   SuperHawk- that is BEYOND nasty. Do people really ...   Mar 20 2023, 09:23 AM
brant   SuperHawk- that is BEYOND nasty. Do people really...   Mar 20 2023, 10:11 AM
TrailerParkBoy   This is number four. A few weeks ago. Now doing fu...   Mar 20 2023, 09:56 AM
robmac571   This is number four. A few weeks ago. Now doing f...   May 10 2023, 12:42 PM
gnomefabtech   Thanks for all the input. I guess I'll drop th...   Mar 20 2023, 10:47 AM
Shivers   Thanks for all the input. I guess I'll drop t...   Mar 20 2023, 06:20 PM
930cabman   Thanks for the great shot of an original hell hole...   Mar 20 2023, 11:14 AM
ClayPerrine   I know the original poster found his problem, but ...   Mar 20 2023, 11:21 AM
930cabman   I know the original poster found his problem, but...   Mar 20 2023, 02:03 PM
gnomefabtech   Thanks for the welcome. I'm a seasoned Porsch...   Mar 20 2023, 11:30 AM
gnomefabtech   I guess fortune smiles upon some of us! Did yo...   Mar 20 2023, 07:21 PM
Shivers   I guess fortune smiles upon some of us! Did y...   Mar 20 2023, 11:22 PM


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 27th April 2024 - 12:51 PM