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<DIV>I have the MGB arms on my Tiger. They require about a 1/2” spacer on
the front bolt to fill in a gap between the arm and the spindle. The two bolt
holes do not align perfectly. You need to file or mill out one of the holes a
small amount as I believe the spacing is too large on the MGB arm. If you are
searching for every bit of help you can get, my recollection is that the front
hole is filed towards the rear and that positions the arm about a 1/16”-1/8”
more forward, rather than 1/16”-1/8” more rearward if you file the rear
hole. I did this over 10 years ago so check by observation for which hole
to file, but the goal is to get the arm as far forward as possible. The backing
plate/shield needs a notch about 1” high and about 1/2” deep as the arm
positions in its path and you need the room for the tie rod end. For the
record I have 13” Cosmic wheels (like those on the Harrington Tiger) and they
clear this modification though I believe I have about a 1/4” spacer under the
wheel. Sorry for the vagueness but my car has been on jack stands for 15 years
now and is currently buried in wood for my daughters Tiny House.</DIV>
<DIV> </DIV>
<DIV>Regarding rack modification; my rack apparently had one of the ends damaged
at some time in its life. Someone did a hack repair by simply welding on an
Alpine section. A very dubious repair. Some here were horrified when I
shortened both rack ends and then cut threads with a die (left and right
threads) as the original threads are rolled. The die was somewhat adjustable and
I made light cuts after the initial cut. I constantly back cut after a few
degrees of rotation of the die. I then lightly chased the threads with a fine
file and did everything I could to remove burrs, tears, etc.. I did the threads
likewise with a grade 8 bolt which attached to the tie rod end. To couple the
two together I used the split tube and clamp that just about every American car
had before struts became popular. They needed to be as short as possible and
70’s era AMC tubes (Hornet I recall) were used. Both the adjustable die
and the split tube/clamps were helpful because the diameter of the rack is not
consistent. It allows for the incremental adjustment people desire and frankly I
feel a whole lot more comfortable with this than a welded on Alpine piece.
That said, it would be something that one does at their own risk. I don’t
advise cutting up a stock rack, but in my case it seemed irrelevant.</DIV>
<DIV> </DIV>
<DIV>Notes on the images: I do not have the clamps on the split tube at
this time, for the record I plan on having two clamps per side. Parts for the
modification. Buried Tiger (will it EVER see the road in y lifetime???).</DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=tigers@autox.team.net
href="mailto:tigers@autox.team.net">Gary via Tigers</A> </DIV>
<DIV><B>Sent:</B> Wednesday, May 20, 2015 7:08 PM</DIV>
<DIV><B>To:</B> <A title=tkparker1941@gmail.com
href="mailto:tkparker1941@gmail.com">Tom Parker</A> </DIV>
<DIV><B>Cc:</B> <A title=tigers@autox.team.net
href="mailto:tigers@autox.team.net">Tiger's Den</A> </DIV>
<DIV><B>Subject:</B> Re: [Tigers] Backing up other cars</DIV></DIV></DIV>
<DIV> </DIV></DIV>
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<DIV>Thanks Tom, but I knew all that..</DIV>
<DIV>What I was wondering was what tie rod ends</DIV>
<DIV>or machining on the steering arms did you</DIV>
<DIV>have to do? The Alpine arms are slightly</DIV>
<DIV>longer than the MGB arms and should help</DIV>
<DIV>even more, that was part of Doane's race</DIV>
<DIV>mods IIRC. I haven' t heard of anyone else</DIV>
<DIV>using the stock rack like you. Did you have</DIV>
<DIV>to "unbend" the rack arms and did you make</DIV>
<DIV>sure you didn't run out of rack ball joint</DIV>
<DIV>travel? You should be able to do your own</DIV>
<DIV>precision alignment using the "strings"</DIV>
<DIV>method, I do.</DIV>
<DIV>Gary</DIV>
<DIV><BR><BR>Sent from my iPhone</DIV>
<DIV><BR>On May 20, 2015, at 6:31 PM, Tom Parker <<A
href="mailto:tkparker1941@gmail.com">tkparker1941@gmail.com</A>>
wrote:<BR><BR></DIV>
<BLOCKQUOTE type="cite">
<DIV>
<DIV dir=ltr>Hi Gary, and Buck,
<DIV> </DIV>
<DIV>First, Buck's right, and I think I implied that. The MGB arms DO NOT fix
the Ackerman Angle issue in the Tiger. "The best we can hope for is a steering
angle of about zero degrees with the stock crossmember." The issue
is the MGA rack George fitted to the Alpine crossmember is way too far
forward, and it isn't possible to get close to a proper Ackerman Angle. It
isn't, imho, a problem with the rack, it's with the mounting position. For
about $10,000 Dale can "fix" the problem by constructing a new crossmember
with the rack in a straight line with the steering arms. Is it that simple?
No, and I won't begin to try to understand the math involved. See DrMayf's
article.</DIV>
<DIV> </DIV>
<DIV>What the arms do is what we both said earlier: the make the steering a
bit easier, and they reduce the tire scrub a bit. That's all. The MGB
arms are about an inch longer than the stock Tiger arms. It's about as far as
you can go, and it requires 15" or larger wheels.</DIV>
<DIV> </DIV>
<DIV>There are a few "solutions to the problem. I know the redesigned
crossmember works, and I'be seen Alpine spindles reversed (swapped side to
side) with Alpine steering arms to the front, but I don't know how close it
comes to solving anything. And I don't know if that "fix" works with the Tiger
rack.</DIV>
<DIV> </DIV>
<DIV>Now to the MGB steering arms: Randy Willett (<A
href="mailto:willett581@msn.com">willett581@msn.com</A>) did the modification.
It involved elongating the center mounting hole a bit and adding a spacer to
align the arm "parallel" (more or less) to the spindle. I torqued it down to
Tiger specs, Randy argued for a bit more torque. He supplied grade 8 bolts.
There's maybe an inch of thread left at the tie rod ends, and less than an
inch clearance to the inside of the wheel. I'm not going to race the car,
street or otherwise. The MGB "solution" helps, and that's all I was looking
for. I knew up front it wasn't a "fix."</DIV>
<DIV> </DIV>
<DIV>So... a bit easier (lighter) steering, not as much scrub. With @ 0" toe
the steering is quite sensitive. I used a Toe Alignment Bar; it's close to
zero toe. How close? I dunno; that takes an alignment rack and the local guys
aren't interested in aligning a car without alignment turnbuckles for less
than @ $350.00. That'll keep 'till I get the Kitty back to Georgia.</DIV>
<DIV> </DIV>
<DIV>Tom</DIV>
<DIV>'67 Mark 2</DIV>
<DIV> </DIV></DIV>
<DIV class=gmail_extra>
<DIV> </DIV>
<DIV class=gmail_quote>On Wed, May 20, 2015 at 6:41 PM, Gary <SPAN
dir=ltr><<A href="mailto:garywinblad@comcast.net"
target=_blank>garywinblad@comcast.net</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV>
<DIV>Tom,</DIV>
<DIV>Interesting... I bought some MGB arms a</DIV>
<DIV>long time ago. How did you connect them?</DIV>
<DIV>Gary<BR><BR>Sent from my iPhone</DIV>
<DIV><BR>On May 19, 2015, at 7:22 AM, Tom Parker via Tigers <<A
href="mailto:tigers@autox.team.net"
target=_blank>tigers@autox.team.net</A>> wrote:<BR><BR></DIV>
<BLOCKQUOTE type="cite">
<DIV>
<DIV dir=ltr>MGB steering arms with the stock Tiger rack (since Dale no
longer makes the Midget rack kit...) solves a lot of the wheel scrub
issues when backing up. The steering's lighter, too, by just a bit. DrMayf
wrote (imho) the definitive analysis on Ackerman v Tigers issue. The best
we can hope for is a steering angle of about zero degrees with the
stock crossmember.
<DIV> </DIV>
<DIV>Tom</DIV>
<DIV> </DIV>
<DIV>'67 Mark 2</DIV></DIV>
<DIV class=gmail_extra>
<DIV> </DIV>
<DIV class=gmail_quote>On Mon, May 18, 2015 at 10:21 PM, Jay Laifman via
Tigers <SPAN dir=ltr><<A href="mailto:tigers@autox.team.net"
target=_blank>tigers@autox.team.net</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV dir=ltr>Every time I back up a non-Tiger, my predispostion to not
going full lock on the Tiger seems to always come through and prevents
me from doing it with the non-Tiger too. I get a chuckle out of it
each time - but I still can't bring myself to do it!
<DIV> </DIV>
<DIV>Just thought I'd share that thought.</DIV><SPAN><FONT
color=#888888>
<DIV> </DIV>
<DIV>Jay</DIV></FONT></SPAN></DIV></BLOCKQUOTE></DIV></DIV></DIV></BLOCKQUOTE></DIV></BLOCKQUOTE></DIV></DIV></DIV></BLOCKQUOTE></DIV></DIV></DIV></BODY></HTML>