996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Dimension stock head / valves

Thread Tools
 
Rate Thread
 
Old Mar 20, 2017 | 05:08 PM
  #1  
krikra's Avatar
Thread Starter
|
Registered User
Joined: Sep 2015
Posts: 143
From: Cph
Rep Power: 26
krikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud of
Measurement stock head / valves

Hi guys,

got my cylinder heads back from cnc porting and valve seat machining.
Would like to measure how much has been machined off of the valve seat. Or actually how much Higher top of valve stem is now positioned relative to the valve spring base.
to decide if I let the hydraulic lifter take care of it or machine parts to compensate.
is anyone able to measure on a stock 996tt head with untouched valve seats - the distance from top of valve stem to valve spring base?
 

Last edited by krikra; Mar 21, 2017 at 03:43 PM. Reason: Changed title
Old Mar 21, 2017 | 04:54 AM
  #2  
mxracer's Avatar
Registered User
10 Year Member
Joined: Jun 2015
Posts: 150
From: NC
Rep Power: 54
mxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond reputemxracer has a reputation beyond repute
Machine shop should be able to tell you how much they took off,
 
Old Mar 21, 2017 | 07:35 AM
  #3  
brnrdtns's Avatar
Registered User
10 Year Member
Joined: Jan 2012
Posts: 1,717
From: Boise, Idaho
Rep Power: 149
brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !brnrdtns Is a GOD !
Your machine shop should have handled this.
 
Old Mar 21, 2017 | 07:41 AM
  #4  
krikra's Avatar
Thread Starter
|
Registered User
Joined: Sep 2015
Posts: 143
From: Cph
Rep Power: 26
krikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud of
Thanks guys..

The seats has been machined twice, wasnt happy with the result from the first shop.
And maybe more times if previous owners ever did seats.
Can see that teh heads has defo been off before.
So I would like to measure how much offset from stock.
 
Old Mar 21, 2017 | 03:35 PM
  #5  
krikra's Avatar
Thread Starter
|
Registered User
Joined: Sep 2015
Posts: 143
From: Cph
Rep Power: 26
krikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud ofkrikra has much to be proud of
Anyone has a 996tt head lying around and can help with a quick measurement?
 



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -6. The time now is 10:04 PM.