Ernst has been sitting a while as I've gotten Edgar sorted. Partly because of this:
I parked Ernst at the end of June and took the final drive to Hansen's for new seals, and as it turned out, new bearings. That took a while as they rebuilt their FD fixtures but Craig thinks they're doing better work with better tools now. Here's what I got back:
I cleaned up the surrounding area and got Ernst back on both wheels a little while ago. Then I was able to push him to my new shop in the backyard. A little time to build a bench and bike stand, and we got to here:
A bit later in the winter than I'd planned (today is the first day of Spring) but I'm digging it nonetheless.
I've got some other stuff to deal with:
And I'm likely doing an alternator upgrade and a crank-triggered ignition with that front plate coming off. Possibly a new cam chain if it's showing wear. To get better access to that area, I'll be servicing the fork and head bearings. When the fork goes back together, it will have dual disc sliders, with the full brake upgrade to follow later.
In the meantime I've got to finish some things I'd started at the back end so I can dick with the front end. First, the Progressive shocks (nice pieces!) got entirely too patinated in 10 years on the coast, so they'll get handed down to Edgar, who is all about the patina. I'd come into these a while ago:
They are gas charged and rebound adjustable Sachs shocks from a Moto Guzzi V11 if I've researched it right. Statically, they're 1/2 longer than stock Airhead shocks which matches up nicely with my plans. I'd like Ernst to be a bit more of a backroad scratcher now that I've got Edgar for pillion and getting out of town use. And with the chrome bodies and springs, they really belong here:
I looked inside that book, and I'm just a little disappointed Ernst didn't make the final edit. But with these shocks, perhaps he'll make the next edition.
The bit I didn't know was whether or not the spring rate was anywhere close to what I needed. So I built a test rig:
It gets used like this (you don't see my ass on the end of the board):
I checked the Sachs springs against the OG BMW springs for load at installed length, load at installed less 1.25" (sag height), and load at 1' and 2" less than that. 3" was well beyond the rating of my $10 scale! The Sachs springs are progressive and probably will ride less than the 1/2" taller than stock. Otherwise, they were close enough to stock that it probably won't matter.
With some work with a hole saw, the test rig was also a reassembly rig:
Somewhere in here I ran the shiny bits on the buffer to refresh them:
And then it was time to reinstall. Ernst has an issue with the subframe on the left side:
I had similar issues with some Hagons I wanted to try. So I got the Dremel out and made some clearance to get to here:
That gets us caught up. Updates as they happen. As always, never too quickly.