5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

valvetrain geometry

Thread Tools
 
Search this Thread
 
Old 05-17-2008, 11:57 AM
  #1  
hi_tek_rednek
2nd Gear Member
Thread Starter
 
hi_tek_rednek's Avatar
 
Join Date: Apr 2008
Location: Mousewitz,FL
Posts: 192
Default valvetrain geometry

i just measure for my pushrod length and i think the rocker geometry is pretty good.do ya'll think the pattern is good on the valve tip?
heres a vid of the geometry.
http://smg.photobucket.com/albums/v3...t=P1050675.flv


will...
hope this is the right section.
hi_tek_rednek is offline  
Old 05-17-2008, 12:13 PM
  #2  
AdderMk2
Banned
 
AdderMk2's Avatar
 
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
Default RE: valvetrain geometry

It looks alright from here, but that doesnt mean ****.

take the rocker off, color the top of the valve with a marker, and put the rocker back on.
crank it over a few times, remove the rocker, and inspect the wear pattern
AdderMk2 is offline  
Old 05-17-2008, 12:21 PM
  #3  
bikeboy587
4th Gear Member
 
bikeboy587's Avatar
 
Join Date: Mar 2007
Location: Buffalo, NY
Posts: 1,541
Default RE: valvetrain geometry

looks a little too far to the inside, aka pushrod too short, but you got to check the wear pattern with a marker like adder said
bikeboy587 is offline  
Old 05-17-2008, 01:12 PM
  #4  
OnyxCobra
6th Gear Member
 
OnyxCobra's Avatar
 
Join Date: Nov 2005
Location: Rochester, NY
Posts: 8,467
Default RE: valvetrain geometry

Yeah do what Adder said, that's how I did mine and it worked great. Also make sure you're using a solid lifter, if you're using one of the stock ones then it'll be inaccurate.
OnyxCobra is offline  
Old 05-17-2008, 01:31 PM
  #5  
hi_tek_rednek
2nd Gear Member
Thread Starter
 
hi_tek_rednek's Avatar
 
Join Date: Apr 2008
Location: Mousewitz,FL
Posts: 192
Default RE: valvetrain geometry

thx guys. i'll do the marker thing. i'm using hydrolic roller lifters. with it tightened down so as to compress the lifter about an 1/8" in.


will...
hi_tek_rednek is offline  
Old 05-17-2008, 01:40 PM
  #6  
OnyxCobra
6th Gear Member
 
OnyxCobra's Avatar
 
Join Date: Nov 2005
Location: Rochester, NY
Posts: 8,467
Default RE: valvetrain geometry

You can't use a collapsed hydraulic lifter because when your engine is actually running the pushrod will be too long. You need to use a solid lifter so it acts like a hydraulic lifter pumped with oil when your engine is running. The solid lifter doesn't compress when checking the geometry thus giving you an accurate reading.
OnyxCobra is offline  
Old 05-17-2008, 02:33 PM
  #7  
hi_tek_rednek
2nd Gear Member
Thread Starter
 
hi_tek_rednek's Avatar
 
Join Date: Apr 2008
Location: Mousewitz,FL
Posts: 192
Default RE: valvetrain geometry

ok so i gotta buy 1 solid roller lifter and put it in and check it that way right? what a pain. lol.




will...
hi_tek_rednek is offline  
Old 05-17-2008, 04:36 PM
  #8  
OnyxCobra
6th Gear Member
 
OnyxCobra's Avatar
 
Join Date: Nov 2005
Location: Rochester, NY
Posts: 8,467
Default RE: valvetrain geometry

if you want it to be right that's what you have to do. Or you can make a solid lifter out of one of your hydraulic ones: http://www.trickflow.com/articles/stroker_1/# Scroll down to where it says "Do It Yourself Checking Lifter"
OnyxCobra is offline  
Old 05-17-2008, 05:28 PM
  #9  
wrenchturner75
2nd Gear Member
 
wrenchturner75's Avatar
 
Join Date: Jan 2008
Location: pa
Posts: 313
Default RE: valvetrain geometry

the pattern your looking for will be a very narrow stripe right down the center of the valve tip. then your right on the money
wrenchturner75 is offline  
Old 05-17-2008, 07:20 PM
  #10  
hi_tek_rednek
2nd Gear Member
Thread Starter
 
hi_tek_rednek's Avatar
 
Join Date: Apr 2008
Location: Mousewitz,FL
Posts: 192
Default RE: valvetrain geometry

cool thx onyx. thats what i'll do. thx again for the info guys.


will...
hi_tek_rednek is offline  


Quick Reply: valvetrain geometry



All times are GMT -5. The time now is 11:29 AM.