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  #1  
Old 17th August 2011, 02:59 PM
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brainbug007 brainbug007 is offline
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Default Steering

I'm trying to finish this part off and struggling a little so hopefully someone can help! For some reason the only place I can put my steering rack is all the way over on the nearside rather than in a central position as per the book. If it's not all the way over to the nearside, the steering extension fouls on the diagonl chassis rail Because of having to put it all the over to the nearside, I end up having to let the track rod extension out pretty much all the way from the rack on the offside to compensate. On top of that I have to almost turn the rack slightly off center with the steering wheel so to speak. I'd imagine I wouldn't be able to go full lock to lock as the rack itself isn't completely centered (I presume the trackrod would stop it turning further). So anyone have any idea where i'm likely to have gone wrong or if it will be ok like this and go thru iva?

Last edited by brainbug007 : 17th August 2011 at 03:23 PM.
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Old 17th August 2011, 03:40 PM
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Bump steer!!!!!!!!!!!!!!!!!!

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Old 17th August 2011, 03:44 PM
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forgive my newbieness but bump steer??
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Old 17th August 2011, 04:07 PM
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As near as poss the ball joints on the ends of the rack should intersect with the top and bottom wishbone fulcrum points. As suspension goes up and down there should in theory be no affect on the steering geometry.

http://t0.gstatic.com/images?q=tbn:A...5R94akKxHGBbEQ

By shoving the rack over you are in affect making one steering arm long and one short.

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Old 17th August 2011, 04:10 PM
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Bummer, didn't think that would work. So I guess the culprit is likely to be the diagonal is too far over into the engine bay?? Did a bit of digging and thinking and I wonder if my problem is my column is out of a later sierra with power steering which has a different shape at the end and the spline to fit onto the rack is different because of this. Apparently earlier sierra columns without power steering have a spline which fits straight onto an escort rack. I had to get one of these http://www.rallydesign.co.uk/product...ducts_id=13580 and part of the problem originally was the part that connects onto the column fouls on the diagonal

Last edited by brainbug007 : 17th August 2011 at 04:36 PM.
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Old 17th August 2011, 04:44 PM
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Quote:
Originally Posted by brainbug007 View Post
Apparently earlier sierra columns without power steering have a spline which fits straight onto an escort rack.(
The old Mini steering rack spline is the same as the Escort Mk2 and you can use that rubber coupling - very similar to the Sierra's. Before I found a suitable Sierra one, I had a Mini one I planned to use instead....

I believe the old Mini's are like the plague in Brittain or are they all scrapped by now?
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Old 17th August 2011, 09:00 PM
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Unless they have a triangle end then it won't really attach to the column though I was thinking would it work to increase the height / angle of the rack mount to get the rack a bit higher to give me more clearance as the diagonal slopes outward so to speak?
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Old 18th August 2011, 09:01 AM
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Why put the triangle end at the steering rack?
The triangle end attach to the steering side of things. I had recently installed my steering unit (442E chassis) using Sierra column and Escort Mk2 rack. Here is a link how I did mine if you missed it. http://www.haynes.co.uk/forums/showthread.php?t=6843
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Old 18th August 2011, 09:36 AM
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Problem is it's a triangle shape at both ends of the column so to speak so I've got bendable coupling at the top like you have in http://www.haynes.co.uk/forums/attac...9&d=1313167124 but then i have a similar coupling at the bottom at the rack end (which has the escort spline on it). Also your chassis appears a bit different (must be because of being a 442e) in the front as your diagonals that can be seen in http://www.haynes.co.uk/forums/attac...8&d=1313167107 sit much closer to the outside of the chassis compared to the book spec ones. I do like how your rack mount looks though as it's kind of what I had in mind in terms of changing the height/angle of the rack slightly to clear the diagonals better.
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Old 18th August 2011, 11:41 AM
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Post some pictures of your chassis / steering setup so we can have a look and see what the problem is.
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