Hey Joe,
....sound to me like the lowering blocks are your problem!
Did that one myself.
I had purchased the wrong leaf springs...RBB 7 leaf for my CBB 73.
The arch was too tall..made my rear end sit up like a hotrod.
I at first put in the long u-bolts and lowering blocks.
Just days later ... my brand new rear driveshaft ujoint exploded.
I thought it was just a bad joint...or I had messed it up changing it.
That rubbing I heard was the entire rearend leaning on the tower
of blocks above the leaf springs grinding the rear driveshaft u-joint.
Accelerating, deccelerating and corning mad the whole rear end
lean and twist, pulling the drive shaft slip joint in and out and twisting
the u-joint into obscure angles. The leaf springs were being
distorted into an s-shape by the lever arm created by the tower of blocks
under the rear axle,and forcing the u-joint into an obscure angle.
The marks on the driveshaft yoke convinced me!
Replaced the springs (with the correct ones) removed the blocks...
no odd sounds anymore
I thought it was all maybe just loose or something, but with poly bushings
everywhere
everything was still very tight. Looking under the car, and just rocking it
forward and backwards harshly...with park brake on, you could watch it sway.
Paul Tegler
1973 BGT - Daily Driver
Rat - 1980 Spitfire w/ O/D - in re-hab
Punkin' - 1978 Spitfire - in Superb Shape!
email: wizardz@toad.net http://www.teglerizer.com
-----Original Message-----
From: Joe Short <buster_balz@operamail.com>
To: MG Mail list <mgs@autox.team.net>
Date: Friday, September 24, 1999 11:57 AM
Subject: Something rubbing in the rear.
For as long as I've owned my '75 B Roadster, it has done one strange
thing that I can't identifiy. When making a tight turn quickly, something
rubs. At first I thought it was in the front, but recently while testdriving
the car with the battery cover off it was obvious that it's coming from the
rear. It sounds like metal rubbing on metal, and the tires are not rubbing
inside the fenders. I've posted about this before, and have checked a few more
items. The rear bearings feel tight, and exhibit very little endplay. The
parking brake arm (what I thought it was)is assembled correctly and not
rubbing.
The lug nuts are on tightly. I am running the Rostyle rims with 195/60R14
tires.
I also have a set of the minilite look alikes with my autocross tires on them.
The autocross tires are the same size as the street tires. You would think
that the problem would be exagerated by the stickier competiton tires, but the
opposite is true. The problem is worse on the street tires. I'm going crazy
trying to figure this one out. Has anyone had a similar experience ?
My car is lowered with lower springs in front and lowering blocks in the rear.
Also, I have 7 leaf GT springs and and Addco sway bar in the rear.
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