PONTIAC ZONE TECH FORUMS
 

Go Back   PONTIAC ZONE TECH FORUMS >
Engine Tech
> Engine Tech Discussion - Street or Strip
User Name
Password

sponser links

Reply
 
Thread Tools
Old 09-05-17, 10:41PM   #16
Mr.Pontiac
Registered User
 
Join Date: Feb 2003
Location: Weirton WV
Posts: 1,818
Default

Thanks Steve and Gach, now i need to figure witch valve spring tool i like to buy?? with retainers in place, hum still learning!!
Mr.Pontiac is offline   Reply With Quote
Old 09-05-17, 11:16PM   #17
Steve C
Verified User
 
Join Date: Dec 2002
Location: .
Posts: 962
Default

Most shops use a Rimac machine to measure valve spring pressure. Since this is probably not going to be a recurring thing consider finding a local machine shop to measure your set of valve springs. Just remember to have them tested at the actual verified installed height with their retainer.

.
Steve C is online now   Reply With Quote
Old 09-05-17, 11:58PM   #18
sprint250
Moteesuh
 
sprint250's Avatar
 
Join Date: Jul 2002
Location: La Jolla , California
Posts: 3,498
Default

On a small Ford we put together (1998) we used the the cam manufacturer's springs (not gonna mention names) and suggested installed height for them. Our machine shop guy doing the heads at the time built 100's of engines for circle track use and he advised us against it saying they were set up "too tight" for his liking.We insisted on the cam manufacturer's #'s and he reluctantly said ok and set it up as per.
Lo and behold 6 months later we are breaking valve springs. We took the heads off and took them back to the machine shop begging for forgiveness and told him to set the springs up the way he initially planned & with the springs that he wanted to use.

What a difference and no broken springs after that.
Car even ran better.
__________________
Step Away From The KOOL AID !
sprint250 is offline   Reply With Quote
Old 09-06-17, 01:38AM   #19
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,025
Default

One cam company in particular is famous for that light on the springs.
__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Old 09-06-17, 05:30PM   #20
Mr.Pontiac
Registered User
 
Join Date: Feb 2003
Location: Weirton WV
Posts: 1,818
Default

Holy cow!! Look what i found out today!!! Ok i can,t believe i did this & don,t know how long its been this way but looking at 2 of my Rockers i happen to look down and to my surprise I seen something i did wrong!! One side of trunion is recessed and other is perfectly rounded. I found 6 Rockers on wrong ( see picture i am posting)
Attached Thumbnails
Click image for larger version

Name:	SANY1443.jpg
Views:	42
Size:	27.5 KB
ID:	29232   Click image for larger version

Name:	SANY1444.jpg
Views:	43
Size:	31.9 KB
ID:	29233  
Mr.Pontiac is offline   Reply With Quote
Old 09-06-17, 06:02PM   #21
Dragncar
Registered User
 
Join Date: Aug 2005
Location: Mcinleyville CA
Posts: 563
Default

So, you put 6 rocker pivots in upside down. I would check the rest of the engine.
Dragncar is online now   Reply With Quote
Old 09-06-17, 07:16PM   #22
JSPONT
Registered User
 
JSPONT's Avatar
 
Join Date: Feb 2014
Posts: 1,333
Default

Yes the round side sits on the stud, the flat side the poly lock sits on. Check them all!!!
Your rocker geometry will be off with them upside down.
JSPONT is offline   Reply With Quote
Old 09-06-17, 07:47PM   #23
Mr.Pontiac
Registered User
 
Join Date: Feb 2003
Location: Weirton WV
Posts: 1,818
Default

Only 6 i checked everyone!!!
Mr.Pontiac is offline   Reply With Quote
Old 09-06-17, 09:32PM   #24
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,025
Default

Most likely was effecting opening and closing of those valves. It's easy to make those kinds of mistakes. Somme's times you have to walk away and then double check your every move. Trying to remember were I got my spring removel tool, think it's a Moroso one, real easy to use.
__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Old 09-06-17, 09:39PM   #25
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,025
Default

This is one I have, the other ones are junk, super easy to use and much more adequate

https://m.summitracing.com/parts/sum...saAqwQEALw_wcB
__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Old 09-07-17, 04:43PM   #26
ta man
Registered User
 
Join Date: Apr 2011
Location: Clinton Ontario
Posts: 214
Default

You may have found your 11's!
ta man is offline   Reply With Quote
Old 09-07-17, 09:55PM   #27
Mr.Pontiac
Registered User
 
Join Date: Feb 2003
Location: Weirton WV
Posts: 1,818
Default

yes Gach, thats what i have, very good tool!!
Mr.Pontiac is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Man found alive in sunken ship cavity after 3 days Mark G Grape Vine - General Discussion 0 12-02-13 10:18AM
CONTACT YOUR SENATOR form against UN Arms Treaty Zedo Grape Vine - General Discussion 24 09-01-12 08:21PM
it's the banks Zedo Grape Vine - General Discussion 8 08-12-10 09:20AM
I found some Pontiacs in a junk yard in Dayton Ohio area. flynbrian 1958 - 1981 Pontiac Tech & Restoration 22 03-18-07 10:07PM
Finishing my 69' Finally, Found a neat tranny! flynbrian 1958 - 1981 Pontiac Tech & Restoration 14 01-30-06 04:49PM


All times are GMT -3. The time now is 01:55PM.

Featured Ads
Ken's Speed & Machine
Mayhem Turbocharging

Carter Cryogenics.  What can we freeze for you?

Pacific Performance Racing

Central Virginia Machine Service.  Home of the Injun Engine!

All Pontiac Engine Kits

Larry's Auto Machine.  Full serivce auto, marine machine shop, domestic and foreign.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
2001 - 2007 PontiacZone.com
Page generated in 0.12291 seconds with 40 queries