 Deck Height Question |
|
|
|
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. |
|
|
| clarkcou |
 Nov 28 2020, 09:16 PM
Post
#1
|
|
Member  Group: Members Posts: 115 Joined: 17-October 03 From: Peoria, Arizona Member No.: 1,257 Region Association: Southwest Region  |
Building a 1.7, 90 mm piston/cylinder. With no base gasket, deck height is .013in. Shouldn’t the head gasket/ shim be included in the deck height.
Barrel shim, not yet installed, is .21mm. Head gasket is .068. Seems to me that deck height would be.082 without barrel shim. I.e. .013 plus .068. Thoughts on this please? Randy |
   |
 
|
  |
Replies
| Robarabian |
Nov 28 2020, 10:10 PM
Post
#2
|
|
914 A Roo Group: Members Posts: 722 Joined: 11-February 19 From: Simi Valley, Kalifornia Member No.: 22,865 Region Association: Southern California 
|
They sell a kit to help with it... a deck height measurement kit. No head gaskets / shims. Put the base shim and assemble the cylinder. Using the kit, it will bolt down under pressure (torque spec not necessary but likely used) and measure the deck height. You want .040 to .060.. somewhere in that range. Do the math and calculate the base shim you will need to meet the deck height. Make sure you take the CC of the heads into consideration for compression ratio calculations...
Have fun! QUOTE(clarkcou @ Nov 28 2020, 07:16 PM)  Building a 1.7, 90 mm piston/cylinder. With no base gasket, deck height is .013in. Shouldn’t the head gasket/ shim be included in the deck height. Barrel shim, not yet installed, is .21mm. Head gasket is .068. Seems to me that deck height would be.082 without barrel shim. I.e. .013 plus .068. Thoughts on this please? Randy |
|
|
|
Posts in this topic
clarkcou Deck Height Question Nov 28 2020, 09:16 PM
Montreal914 I am sure others will chime in but per Porsche bul... Nov 28 2020, 09:48 PM
VaccaRabite
They sell a kit to help with it... a deck height ... Dec 1 2020, 11:59 AM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 8th November 2025 - 12:54 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.