Windsor Pedestal Mount Roller Rockers - what maintains their alignment? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Windsor Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto EscrowInsurance

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-29-2013, 22:29   #1 (permalink)
Newbie #10458632
 
twr7cx's Avatar
 
Join Date: Dec 2003
Location: Howrah Heights, Tasmania, Australia
Age: 27
Posts: 100
Question Windsor Pedestal Mount Roller Rockers - what maintains their alignment?

I have a 5.6L 342cui Ford Windsor motor factory fitted in my 2002 Ford AU Series 3 Falcon XR8 Pursuit 250 ute. The motor was hand built by Tickford using a variety of parts from additional manufacturers. The heads are the Ford GT40P units.

The roller rockers were supplied by Yella Terra ( Yella Terra - Yella Terra high performance engine parts ) and they were manufacturers to Tickfords specifications in a 1.72 : 1 ratio. One of my roller rockers has been damaged.

I am considering upgrading the roller rockers and have identified the Scorpion Performance Endurance Series roller rockers in a 1.72 : 1 pedestal mount configuration as a potential suitable replacement - http://www.scorpioncheckout.com/Sear...ts.asp?Cat=198

My concern relates to maintaining the geometry/alignment of the roller rockers. With the Yella Terra units, they are grouped in pairs with a common shaft running between them - there is two bolts securing the pair of roller rockers to the pedestal on the GT40P head:



Clearly the setup stops any chances of the roller rocker coming out of alignment between the pushrod and valve.

With the 'aftermarket' roller rockers available, including those from Scorpion Performance, the roller rockers seem to be individual units. What maintains their alignment? Surely if there is only a single bolt through the centre securing them to the head, there is a chance that they can pivot around on it?





Below are pictures of the valve train setup and GT40P head setup that I have, if anyone is able to recommend an alternative set of 1.72 : 1 ratio roller rockers that I should consider:







twr7cx is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-30-2013, 00:52   #2 (permalink)
FF.com Administrator
 
Big Block Ford's Avatar
 
Join Date: Apr 2001
Posts: 4,578
Re: Windsor Pedestal Mount Roller Rockers - what maintains their alignment?

Rocker alighnment is usually done by pushrod guide plates or a recess in the tip of the rocker that sits over the valve tip. As these are roller tip then I would guess you need push rod guide plates.

Can you purchase the original Yella Terra ones and then you can be sure it will work correctly.
__________________
Lance
71 429SCJ Mustang
Big Block Ford is offline   Reply With Quote
Old 05-30-2013, 17:26   #3 (permalink)
Newbie #10458632
 
twr7cx's Avatar
 
Join Date: Dec 2003
Location: Howrah Heights, Tasmania, Australia
Age: 27
Posts: 100
Re: Windsor Pedestal Mount Roller Rockers - what maintains their alignment?

Quote:
Originally Posted by Big Block Ford View Post
Can you purchase the original Yella Terra ones and then you can be sure it will work correctly.
Sadly not at this stage, they have no replacement cups to repair the damaged rocker and no replacement rockers. They may be making some more in a few weeks, but it's a maybe!
twr7cx is offline   Reply With Quote
Old 05-31-2013, 02:27   #4 (permalink)
FF.com Administrator
 
Big Block Ford's Avatar
 
Join Date: Apr 2001
Posts: 4,578
Re: Windsor Pedestal Mount Roller Rockers - what maintains their alignment?

Have you tried Ford. They would probably be expensive but if you could purchase the exact replacement then you could just buy a replacement rocker rather than a whole set which would be needed if you used the Scorpion rockers.
__________________
Lance
71 429SCJ Mustang
Big Block Ford is offline   Reply With Quote
Old 06-02-2013, 16:48   #5 (permalink)
Newbie #10458632
 
twr7cx's Avatar
 
Join Date: Dec 2003
Location: Howrah Heights, Tasmania, Australia
Age: 27
Posts: 100
Re: Windsor Pedestal Mount Roller Rockers - what maintains their alignment?

Quote:
Originally Posted by Big Block Ford View Post
Have you tried Ford. They would probably be expensive but if you could purchase the exact replacement then you could just buy a replacement rocker rather than a whole set which would be needed if you used the Scorpion rockers.
Yep, tried Ford as well. They have no listing on this motor as the Ford factory assembled it as a 5.0L 302W, then the vehicle was sent over the road to the Tickford workshop were the motor was removed from the vehicle, stripped and worked -
twr7cx is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Windsor Tech



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

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 11:22.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.