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Rack prelaod adjustment?

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GeorgeOhr Nonya Business
Yes, confused, USA   USA
My rack doesn't have any slack but it doesn;t have any preload or dampening. How do you go about adjusting preload on these? Thanks

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Yellowhawk Valley Avatar
walla walla, WA, USA   USA
1969 Triumph Spitfire "Walla Walla"
1969 Triumph Spitfire "Portland"
1972 Triumph Spitfire MkIV "Spokane"
1975 Triumph Spitfire 1500 "Dayton"    & more
I don't believe there is any special preload except what is built in with the assembly of the unit. There are springs on each end that are part of the steering rod inner assembly. Nothing else that I saw when rebuilding mine.
Dan

jimgt6 Jim E
Seekonk, MA, USA   USA
Quoting from the factory manual:

When the nut is correctly adjusted, a force of 2 lb. is required to rotate the pinion shaft at a radius of 8" (16 inch pounds). Parenthesis added by me.

There are shims under the cap nut.



Edited 1 time(s). Last edit at 2018-02-02 10:38 PM by jimgt6.

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Tonyfixit Avatar
Tonyfixit Tony M
Duncan, BC, Canada   CAN
If there is no slack, don't fix it.

jimgt6 Jim E
Seekonk, MA, USA   USA
Lube is 90w GL4

GeorgeOhr Nonya Business
Yes, confused, USA   USA
In reply to # 1511164 by jimgt6 Quoting from the factory manual:

When the nut is correctly adjusted, a force of 2 lb. is required to rotate the pinion shaft at a radius of 8" (16 inch pounds). Parenthesis added by me.

There are shims under the cap nut.

There isn't anything that drags on the rack gear itself like some type of plunger?

spitfire50 Avatar
spitfire50 Paul Mugford
Rochester, N.H., USA   USA
In reply to # 1511198 by GeorgeOhr
In reply to # 1511164 by jimgt6 Quoting from the factory manual:

When the nut is correctly adjusted, a force of 2 lb. is required to rotate the pinion shaft at a radius of 8" (16 inch pounds). Parenthesis added by me.

There are shims under the cap nut.

There isn't anything that drags on the rack gear itself like some type of plunger?
George,
Yes there is a damper plunger under the big hex plug. Shims there adjust the damper. There are also shims on the pinion itself to adjust the mesh.
All the best,
Paul

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