Trunnion land - not to be confused with Runyonland from "Guys and Dolls".
I mentioned last week that I was looking to shore up the camber on the Midget. I ordered up a set of offset Nylatron upper trunnion bushings for the Midget from Moss Motors, and they came with no instructions, which normally wouldn't be an issue, if not for the fact that, with these, I wasn't even able to bank on a YouTube video to observe somebody else's experience (or ineptitude).
Nylatron is a REALLY HARD Nylon polymer, self lubricating, and is often used in conveyer systems and as an aftermarket bushing material for the notorious Triumph Spitfire and TR6 rear suspensions. So if it's used in an upgrade in Triumphs, all that tells me is that it's at least a little better than rubbish.
The offset idea is to give a racing Spridget some negative camber for better cornering capability in road racing, but as the bushing is round with a non-concentric hole, it can be set infinately to make adjustments positive or negative.
DSCN1000 by
Chris Conrad, on Flickr
Now what's odd is that according to Moss Motors, this is how you're supposed to utilize this bushing - with the bolt head against the bush. A phone call to Moss gave me assurances that this is how it is, but the guy was unable to CONFIRM this with any tech resources, and nobody on staff had actually done this converision.
It may well be the hardest Nylon on earth, but it's still Nylon, and I simply don't feel secure bolting this into place without something more substantial than a machined plastic tube holding my front end in place.
The bushing on the other side of the trunnion mates to the iron control arm, and I certainly didn't want THIS wearing it's way into the bushing . . .
DSCN1004 by
Chris Conrad, on Flickr
The original rubber bushings have a metal flanged bushing inside -
DSCN1005 by
Chris Conrad, on Flickr
Despite the retailer's recommendation to use the Nylatron bushing as is, I wasn't convicted that it would be safe, so I stopped and picked up some stainless washers.
DSCN1001 by
Chris Conrad, on Flickr
I set up my vertical datum . . .
DSCN1007 by
Chris Conrad, on Flickr
And dicked around for about 3 hours - took both sides apart twice to get it right, but . . .
Top of wheel . . .
DSCN1014 by
Chris Conrad, on Flickr
Bottom of the wheel . . .
DSCN1011 by
Chris Conrad, on Flickr
At the end of the day, I'm at .28 degrees positive on the driver's side - from 1.11 negative, and .573 degrees positive on the passanger side, from .44 positive.
Considering the shape of the salt last year, I'm calling this a bullseye.