Hi Ray,
On the BN1 arms the half moon (cotter) pins are vertical whereas on the
later cars they slope inward toward the top. As I recall this modification
prevents interference between the top of the pins and the steering arm on
full droop.
For this reason the BN1 arms are all the same but the later type are pairs.
I check arms for straightness using a surface table to do comparisons. The
most common problem is a bow in the arms resulting from their being heated,
with the spring load on them, to free up the spring pan bolts,
Michael Salter
www.precisionsportscar.com
-----Original Message-----
From: owner-healeys@autox.team.net [mailto:owner-healeys@autox.team.net] On
Behalf Of Ray Juncal
Sent: Tuesday, July 27, 2004 3:50 PM
To: Healey list
Subject: Front Suspension
Guys
I have a question about the lower wishbone arms ( control arms , A-arms
).
The Moss catalog shows a seperate number for the BN-1. It also has two
numbers for all the other cars (BN-2 thru BJ-8). That tells me they are
handed (left front / right rear) and (right front / left rear). Since they
look identical there must be a top and bottom like a taper pin hole. I
measured the half moon pin holes and they seem to be constant bore. So what
makes these guys different and how can you tell them apart? Also what's the
difference from the BN-1 arms and how can you tell them apart? Last what is
the best way to check for a bent one? The parts car took a bad hit in the
front end and may have a bent arm.
Thanks
Ray Juncal
PS: So glad we got over the French politics topic. I'm sure some of you
guys
would have problems with my politics and I might not agree with yours. So
lets talk about cars, something we all can agree on. Yea right!
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