MG steering SPF

Mark H.

Supporter
Supposed MGB however anyone know specific unit used on SPF ? Specifically the year and what did SPF modify to fit? My turning radius is very minimal. I removed the internal plastic stops, but this changed nothing. Would like to get another rack to experiment with. Appears I have quite a lot of tire to body room for additional turn radius. Any SPF owners know their steering wheel turns, lock to lock? Maybe it is what it is? Any info appreciated.
 

Rick Muck- Mark IV

GT40s Sponsor
Supporter
Supposed MGB however anyone know specific unit used on SPF ? Specifically the year and what did SPF modify to fit? My turning radius is very minimal. I removed the internal plastic stops, but this changed nothing. Would like to get another rack to experiment with. Appears I have quite a lot of tire to body room for additional turn radius. Any SPF owners know their steering wheel turns, lock to lock? Maybe it is what it is? Any info appreciated.
The rack is an MGB unit supplied via Moss Motors who have them made in I believe, Venezuela. Removing the plastic steering stops definitely reduces the turning radius, but the radius is still large. There is nothing you can do with the MG rack to improve the radius. The only option for improvement would be a custom rack from Flaming River, etc. however the tire clearance will still limit the radius. You might pick up a little but probably not enough to warrant the cost. Face it, three-point turns are in your future.
 

Neil

Supporter
The rack is an MGB unit supplied via Moss Motors who have them made in I believe, Venezuela. Removing the plastic steering stops definitely reduces the turning radius, but the radius is still large. There is nothing you can do with the MG rack to improve the radius. The only option for improvement would be a custom rack from Flaming River, etc. however the tire clearance will still limit the radius. You might pick up a little but probably not enough to warrant the cost. Face it, three-point turns are in your future.
A story I heard about scrutineering for Le Mans years ago- All cars were required to have a turning radius less than X. Ferrari passed the test but one Ferrari engineer muttered "It's lucky they didn't require us to turn left!". :)
 

Mark H.

Supporter
The strange thing is removing the plastic stops made no difference at all, so was thinking maybe there is something else going on? I thought more teeth machined on the rack could be a possibility?
 
You're right about the Moss Motors MG steering rack Rick except it's made in Argentina. Removing the plastic stops did make a sizable reduction in turning radius in my experience. Fewer 3 point turns.
 

Mark H.

Supporter
OK, my steering wheel is lock to lock, 1.5 turns. 3/4 turn from centered steering wheel to lock. If that is what it is then so be it. Just that there is a bunch of room left for more.
 

Ian Anderson

Lifetime Supporter
See here

It states the turns lock to lock is 2 3/4 if you are only getting 1 1/2 it could be snagging on something like chassis plate anti roll bar etc.

Ian
 
if possible move the pickup point on upright closer to wheel centre...
This will of course make the steering heavier..
I suspect , as started above, that there is an interferance issue somewhere that is stopping the upright from turning..
Jerry
 
Just checked my SPF Mk11. Lock to lock is almost exactly 2 turns. Also tires should start to touch inner wheel wells at full lock with plastic stops removed. Apparently you're having some interference getting full lock. Are you sure plastic stops are completely removed and no remnants were left?
 

Mark H.

Supporter
Yes, sure the .850 wide stops are out. The 215 Avons now just miss the inner well, but I found the issue! Being dumb and cauious!
I didn't want to force the steering wheel, as turning gets pretty hard after the initial 1 turn? Anyway, I do have a little over 2 turns until the rack hits its stops . Sorry to all for the hub-bub! Maybe getting old, weak and loss of gray matter is catching up.
 

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