V8S steering rack ball joints
Discussion
The replacement rack arrived and is standard S not V8. It's about a couple of inches short.
Quick comparison reveals its all the same except for the inner ball and cup track rod mounts
Standard S
V8S
They appear to screw on but I also suspect a pin into a blind hole.
Anyone been here before?
Quick comparison reveals its all the same except for the inner ball and cup track rod mounts
Standard S
V8S
They appear to screw on but I also suspect a pin into a blind hole.
Anyone been here before?
due to the rack problems I had I fitted extender like this
http://www.motorsport-tools.com/media/catalog/prod...
works a treat and when set up removed the horrendous bump steer
http://www.motorsport-tools.com/media/catalog/prod...
works a treat and when set up removed the horrendous bump steer
Provided you are absolutely sure the other dimensions are the same, then fitting the extenders is pretty standard practice in 'kit' and special cars.
DONT throw the old rack away, some day we may need these for rebuilding to keep cars going!
Matter of interest, was the offside rack to housing bearing worn oval? And by approx how much? We both know that should have been an MOT failure on that much play. Cant be sure from your pics but was the rack dry or dirty inside?
Just glad you got home without drama.
DONT throw the old rack away, some day we may need these for rebuilding to keep cars going!
Matter of interest, was the offside rack to housing bearing worn oval? And by approx how much? We both know that should have been an MOT failure on that much play. Cant be sure from your pics but was the rack dry or dirty inside?
Just glad you got home without drama.
Surely extending the track rods would be extending the wrong bit. It's the rack that's wider on the V8 by the TVR bit that joins the vauxhall and ford bits being longer.
I don't know how those come apart, I didn't look very hard when I did the boots on mine but I seem to recall seeing a pin in there somewhere.
I don't know how those come apart, I didn't look very hard when I did the boots on mine but I seem to recall seeing a pin in there somewhere.
zombeh said:
Surely extending the track rods would be extending the wrong bit. It's the rack that's wider on the V8 by the TVR bit that joins the vauxhall and ford bits being longer.
That's very true, but it's the track rod ends that are being extended here, not the rods themselves. The track rod ends are the part that are rigidly attached to the rack and alter the effective length of the rack as it relates to suspension geometry. GreenV8S said:
zombeh said:
Surely extending the track rods would be extending the wrong bit. It's the rack that's wider on the V8 by the TVR bit that joins the vauxhall and ford bits being longer.
That's very true, but it's the track rod ends that are being extended here, not the rods themselves. The track rod ends are the part that are rigidly attached to the rack and alter the effective length of the rack as it relates to suspension geometry. Lengthening the track rod with an extender on the rod (if available in 25mm per side) would not provide the same geometry as OE set up as it is the fixed rack that is longer not the track rod.
Clearly better than nowt but not the same.
Interesting the v8s hub has the track rod end entering the hub from below and on the v6 they enter the hub from above.
Top Gear TVR said:
the original V8S rack has the longer inner joint c. 1" per side.
Lengthening the track rod with an extender on the rod (if available in 25mm per side) would not provide the same geometry as OE set up as it is the fixed rack that is longer not the track rod.
Clearly better than nowt but not the same.
Interesting the v8s hub has the track rod end entering the hub from below and on the v6 they enter the hub from above.
Agreed with above - our advice was given thinking that the racks were identical and the extra width only in the rod. Lengthening the track rod with an extender on the rod (if available in 25mm per side) would not provide the same geometry as OE set up as it is the fixed rack that is longer not the track rod.
Clearly better than nowt but not the same.
Interesting the v8s hub has the track rod end entering the hub from below and on the v6 they enter the hub from above.
Top Gear TVR said:
..... The chevette ratios match up...
So how come,Top Gear TVR said:
Rack / Turns lock-lock / linear mm/rev
TVR V8S / 2.6 / 45
Chevette / 4.2 / 38
The Lotus track rod inner joints, Ford track rods and Mk3 Cortina track rod ends might explain the difference in linear mm/rev, but not the difference in lock to lock turns. The rack or the pinion, or both must be different as well. Mustn't they?TVR V8S / 2.6 / 45
Chevette / 4.2 / 38
Top Gear TVR said:
Lengthening the track rod with an extender on the rod (if available in 25mm per side) would not provide the same geometry as OE set up as it is the fixed rack that is longer not the track rod.
You're right. I thought the change being proposed was to fit a track rod end which had a longer attachment to the rack i.e. effectively extending the rack itself rather than the track rod. Re-reading I don't think that is what was actually proposed.Speed Matters | S Series | Top of Page | What's New | My Stuff