 Type 4 - 1700 cylinder shims, Type 4 - 1700 cylinder shims |
|
|
|
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. |
|
|
  |
| Mrcrappy |
 Aug 19 2019, 12:03 PM
Post
#1
|
|
Newbie  Group: Members Posts: 2 Joined: 19-August 19 From: UK Member No.: 23,385 Region Association: England  |
Afternoon all
I am new to this forum and fairly new to 914 ownership, hoping someone may be able to help or give advice? I have removed my heads and cylinders on my 1700 engine due to pitiful compression and have noticed the head gaskets had gone or been badly installed on two of the cylinders. Looking a bit deeper I have also noticed that the base of the cylinder is fitted with a steel shim of 0.010” thick, I have bought some replacement shims and aluminium head gaskets, lapped the heads in etc but wondered if the shims should have a gasket either side too? Any help greatly appreciated. Jon |
   |
 
|
| wndsrfr |
Aug 19 2019, 12:24 PM
Post
#2
|
|
Senior Member Group: Members Posts: 1,428 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region 
|
QUOTE(Mrcrappy @ Aug 19 2019, 10:03 AM)  Afternoon all I am new to this forum and fairly new to 914 ownership, hoping someone may be able to help or give advice? I have removed my heads and cylinders on my 1700 engine due to pitiful compression and have noticed the head gaskets had gone or been badly installed on two of the cylinders. Looking a bit deeper I have also noticed that the base of the cylinder is fitted with a steel shim of 0.010” thick, I have bought some replacement shims and aluminium head gaskets, lapped the heads in etc but wondered if the shims should have a gasket either side too? Any help greatly appreciated. Jon Cylinder base doesn't need gasket, otherwise you're thereby changing the deck height and valve geometry... thin bit of sealant to help retain oil.... |
|
|
|
| Mrcrappy |
Aug 20 2019, 12:49 AM
Post
#3
|
|
Newbie Group: Members Posts: 2 Joined: 19-August 19 From: UK Member No.: 23,385 Region Association: England |
QUOTE(wndsrfr @ Aug 19 2019, 07:24 PM) QUOTE(Mrcrappy @ Aug 19 2019, 10:03 AM) Afternoon all I am new to this forum and fairly new to 914 ownership, hoping someone may be able to help or give advice? I have removed my heads and cylinders on my 1700 engine due to pitiful compression and have noticed the head gaskets had gone or been badly installed on two of the cylinders. Looking a bit deeper I have also noticed that the base of the cylinder is fitted with a steel shim of 0.010” thick, I have bought some replacement shims and aluminium head gaskets, lapped the heads in etc but wondered if the shims should have a gasket either side too? Any help greatly appreciated. Jon Cylinder base doesn't need gasket, otherwise you're thereby changing the deck height and valve geometry... thin bit of sealant to help retain oil.... Nice one, cheers, that is exactly what I assumed just wanted to check. Have a great day. Jon |
|
|
|
| porschetub |
Aug 20 2019, 01:18 AM
Post
#4
|
|
Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Don't use barrel to head gaskets ,they are BS even VW canned them back in the 90's,you will need base shims to set deck height ,and you will need to get your heads flycut to get a good seal without those useless gaskets after lapping.
Most gasket sets Elring and VR have the top head sealing rings god knows why because no one uses them,and they aren't alloy by the way. Research on here,lots of info or go to Samba.com. Good luck. |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 26th April 2024 - 05:05 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.