 2.0l Valve Questions |
|
|
|
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. |
|
|
  |
| tornik550 |
 Feb 20 2011, 03:27 PM
Post
#1
|
|
Senior Member  Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None  |
I am in the process of rebuilding my engine. I am using semi-stock 2.0l heads. I am using stock valves however two of the valves were damaged (1 intake, 1 exhaust). The remaining valves are in excellent condition.
-Would it be best to replace the broken valves with a used intake and exhaust valve or replace all of the valves with an aftermarket type? -What aftermarket stock sized valves are out there? Are they an upgrade or downgrade? -Do I need to have the seats re-cut when I replace the valves (the heads were recently reworked with new seats, guides,etc)? |
   |
 
|
| underthetire |
Feb 20 2011, 04:18 PM
Post
#2
|
|
914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
Don't know about the aftermarket valves, you can use clover lapping compound on the two replacements. That's only if they were done very recent. You can usually see pretty quick during lapping if they are going to work. IMO even brand new valves should be touched up or at least checked.
|
|
|
|
| Jake Raby |
Feb 20 2011, 07:42 PM
Post
#3
|
|
Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
The one thing that should always be replaced at rebuild time is valves. I'd rather reuse engine bearings as valves!
|
|
|
|
| tornik550 |
Feb 20 2011, 08:25 PM
Post
#4
|
|
Senior Member Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None |
Where can you buy stainless valves?
I searched t4store, PP and AA and I couldn't find any. |
|
|
|
| r_towle |
Feb 20 2011, 08:32 PM
Post
#5
|
|
Custom Member Group: Members Posts: 24,661 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
|
|
|
|
|
| Jake Raby |
Feb 20 2011, 09:47 PM
Post
#6
|
|
Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
We stopped selling them last year.. It seems that no one knew what sizes they actually needed and orders were always confused..
|
|
|
|
| Mark Henry |
Feb 20 2011, 11:42 PM
Post
#7
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
|
|
|
|
|
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 27th December 2024 - 05:42 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.