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Springs and manifolds

To: mgs@autox.team.net
Subject: Springs and manifolds
From: "A. B. Bonds" <ab@vuse.vanderbilt.edu>
Date: 09 Mar 1995 15:59:11 -0600
My rapid reply is because we are on spring break, and I would rather
do this than grade papers just now...

(1) Regarding throttle return springs.  I have always found SU's on
MG's to have both a linear and concentric throttle return spring.
This is true for my TD, A and B (when HIF-equipped).  The B came with
three linear springs, two attached to the accelerator cable and one
for the choke.  It is my belief that even the concentric springs
produce a lateral force on the throttle shafts, resulting in the
all-too-common shaft and bushing wear.  Somehow, surprisingly, SU
seemed to have figured this problem out by the time the HIF came
along.  Mine (with some 85,000 miles) had negligible shaft/bushing
wear.

(2)  Regarding manifolds.  HIF-equipped cars have thinner ears on the
manifolds.  This is usually not a problem, since one can shim the big
heavy washers with 1/8" stock for the manifold with thinner ears.  You
might need longer studs in your head (if it is of the HIF vintage) but
they are certainly cheaper than a new manifold.  Face it, you should
probably get new studs _anyway_.  And Vicky Brit sells brass nuts for
same for 35 cents.
                A. B. "Have I installed a head recently?" Bonds




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