Haynes Forums  

Go Back   Haynes Forums > Haynes Roadster Forums > Running gear
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #11  
Old 5th January 2010, 10:43 AM
axle's Avatar
axle axle is offline
Senior Member
 
Join Date: Jun 2007
Posts: 226
Default

Hi
It does need to be shortended, both the front wheels look like as if they are toeing out at angle of 20 degree.!!!!!!!!!!
Yes hope we get some clarification on this from some kind members!!
__________________
Regards Axle
Reply With Quote
  #12  
Old 5th January 2010, 10:48 AM
axle's Avatar
axle axle is offline
Senior Member
 
Join Date: Jun 2007
Posts: 226
Thumbs up

Hi Andy
I think we are getting somewhere, yes you are right without modification the car will be undriveable. Could you please tell me what is the totall lenght of the rack either with or without the extentsion.
__________________
Regards Axle
Reply With Quote
  #13  
Old 5th January 2010, 10:57 AM
HandyAndy's Avatar
HandyAndy HandyAndy is offline
Senior Member
 
Join Date: Jan 2009
Location: cleveland
Posts: 3,917
Default

Quote:
Originally Posted by axle View Post
Hi Andy
I think we are getting somewhere, yes you are right without modification the car will be undriveable. Could you please tell me what is the totall lenght of the rack either with or without the extentsion.
hang on a mo, i,ll go and measure my rack / extensions for you, 2 tics

andy
__________________
Flat Pack Chassis Kits for sale, contact me at andyroadster@yahoo.co.uk
Reply With Quote
  #14  
Old 5th January 2010, 11:08 AM
HandyAndy's Avatar
HandyAndy HandyAndy is offline
Senior Member
 
Join Date: Jan 2009
Location: cleveland
Posts: 3,917
Default

here goes....

total length between the center of the threads of the track rod ends is

135 cm

this includes the rack.... rack extensions & track rod ends....

the actual length of the rack extensions on their own is 13 cm.

sorry i can,t give the measurement of each individual part but its all put together on my car, so taking into account some final adjustment of tracking, the figure of 135 cm is about right....

as said it is a std escort mkII rack with the 13cm rack extensions fitted then connected to the track rod ends........hope that makes sense

if i may say.... i think folk are getting confused when talking about shortening the rack as i think this is meant to imply the SIERRA donor,s rack when mentioned in the book......use the escort rack & you,ll be fine, but don,t make the extensions to the spec as stated in the book.

hope this helps.

cheers
andy
__________________
Flat Pack Chassis Kits for sale, contact me at andyroadster@yahoo.co.uk
Reply With Quote
  #15  
Old 5th January 2010, 11:31 AM
axle's Avatar
axle axle is offline
Senior Member
 
Join Date: Jun 2007
Posts: 226
Default

Hi Andy
This is great, I am sure i will be able to sort something now.
Thanks 10000000000000000000000000............

One thing still a mistery I am using the escort rack, the suspension still in the air could this be the reason???????????
__________________
Regards Axle

Last edited by axle : 5th January 2010 at 11:35 AM.
Reply With Quote
  #16  
Old 5th January 2010, 11:35 AM
HandyAndy's Avatar
HandyAndy HandyAndy is offline
Senior Member
 
Join Date: Jan 2009
Location: cleveland
Posts: 3,917
Default

no prob.
hope my above post made some sense

Axle.... are you using extensions made from the book dimensions? if so they are too long, with the escort rack the extensions only need to be 13cm in length

cheers
andy
__________________
Flat Pack Chassis Kits for sale, contact me at andyroadster@yahoo.co.uk

Last edited by HandyAndy : 5th January 2010 at 11:37 AM. Reason: added text
Reply With Quote
  #17  
Old 5th January 2010, 11:45 AM
HandyAndy's Avatar
HandyAndy HandyAndy is offline
Senior Member
 
Join Date: Jan 2009
Location: cleveland
Posts: 3,917
Default

oops...

just read the whole thread again...

Axle... the rack extensions supplied by MK are to the book spec which makes them too long

either shorten them to 13 cm or buy extensions from Rally design & you,ll be sorted.

the extensions shown in the book on page 76 diagram 5.36 is incorrect.
the main body of the extension needs to be 13cm .

cheers
andy
__________________
Flat Pack Chassis Kits for sale, contact me at andyroadster@yahoo.co.uk
Reply With Quote
  #18  
Old 5th January 2010, 12:11 PM
twinturbo's Avatar
twinturbo twinturbo is offline
Super Moderator
 
Join Date: Jul 2008
Location: Carlisle
Posts: 4,393
Default

I think you will find,

The reason Chris has mentioned the shortening of the rack is so that the inner ball joint is in line with the suspension pivots. thus ensuring a constant distnace between the rack ball and the steering arm. This will negate any Bump steer. The slight difference will creatr a bit of bump but may be acceptable to the IVA.


Thats my take on it anyway.

You would not shorten the rack because your extensions were too long.

TT
__________________
You only get a woosh with a dump valve

Build Thread


Man Cave Mantiques



Cecil Street Auto Repairs Garage Carlisle




Build Cost £4181.65 - Last - Wheel Cylinders
Reply With Quote
  #19  
Old 5th January 2010, 12:14 PM
twinturbo's Avatar
twinturbo twinturbo is offline
Super Moderator
 
Join Date: Jul 2008
Location: Carlisle
Posts: 4,393
Default

Quote:
Originally Posted by HandyAndy View Post
if i may say.... i think folk are getting confused when talking about shortening the rack as i think this is meant to imply the SIERRA donor,s rack when mentioned in the book
Quote From book.

Athough the ESCORT steering rack is very close to the ideal.........


TT
__________________
You only get a woosh with a dump valve

Build Thread


Man Cave Mantiques



Cecil Street Auto Repairs Garage Carlisle




Build Cost £4181.65 - Last - Wheel Cylinders
Reply With Quote
  #20  
Old 5th January 2010, 12:16 PM
twinturbo's Avatar
twinturbo twinturbo is offline
Super Moderator
 
Join Date: Jul 2008
Location: Carlisle
Posts: 4,393
Default

In fact look at diagram 5.34 p 75

It shows the ball in line with the pivots with 533mm between ball joint centers.



TT
__________________
You only get a woosh with a dump valve

Build Thread


Man Cave Mantiques



Cecil Street Auto Repairs Garage Carlisle




Build Cost £4181.65 - Last - Wheel Cylinders
Reply With Quote
Reply


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

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


All times are GMT +1. The time now is 03:19 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.