Let me introduce myself . . . and my project - 1979 R100T (Otto)

Discussion in 'Airheads' started by Jim K in PA, Mar 22, 2011.

  1. Jim K in PA

    Jim K in PA Long timer

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    I finally got the front end back together last night. I spent more time cleaning all the oil and grime off of everything than actually reassembling the forks. It is pretty easy to do this job. Alignment was straightforward, just had to add a washer to shim the fork brace.

    Rode the bike a little over 100 miles today. What a difference. I now have functional forks! Not a hint of a leak.

    Now, on to the rear shocks . . . :eek1
  2. Jim K in PA

    Jim K in PA Long timer

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    Went for a great ride today along the Delaware River on the NJ side. My friend rode his 636 Ninja. Below is a crappy cell phone pic of us on a gravel road. I was surprised he agreed to follow me on it with the Ninja! :wink:

    [​IMG]
  3. Jim K in PA

    Jim K in PA Long timer

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    It seems my celebration of the rebuilding of the front forks was a bit premature. No leaks, but they are binding up pretty bad. Have to re-do the alignment. :cry
  4. Jim K in PA

    Jim K in PA Long timer

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    It has been a few weeks since I have updated this thread, as I have been away and also shipped my first born son off to college :eek1 :cry. A few catch up points:

    The fork alignment is still "in progress". I removed the washers I put in the fork brace, and rotated the left fork tube about 45 degrees. This helped immensely, but it is not quite there yet. I rotated the right fork tube about 45 degrees today, and will see how that helps/hurts. Thunderstorms are here now, so the test ride will have to wait a bit.

    I got the old Krausers cleaned up and mounted on the bike this afternoon. When it stops raining, I will take some pics of them with the DWAP straps I bought and the foam "shims" I installed on the mounts to stop them from rattling around.

    I have been playing with an aftermarket windshield on and off for the last few months. I am finally giving up on it. It is not solidly mounted enough for my tastes, and more importantly, it puts tremendous turbulence right at my helmet. I hate the noise and buffeting, and the minimal protection it provides my torso is not worth it. It also was in the way of remounting my OEM "hub cap". I cleaned it up and it looks pretty nice now:

    [​IMG]

    I think I will start a seperate thread on this piece. I would like to find some switches to fit in the two side filler plugs, but cannot locate any info here or at REALOEM, or at MaxBMW. I just don't know the correct identification of what I am seeking, I suppose.

    I hope to ride to work a couple of days this week. I took a short ride up to the top of Big Pocono State Park near my house and it was great. Been too long out of the saddle. :D
  5. Dirt Freeak

    Dirt Freeak Adventurer

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    I KNOW there are some updates to this... :D
  6. Solo Lobo

    Solo Lobo airhead or nothing

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    That looks to be an R80RT "hub cap" no really! check in the steering fich page!
  7. Big Doobie

    Big Doobie Frustrated Redneck

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    Just checking in, enjoying your project, and to encourage.
  8. Jim K in PA

    Jim K in PA Long timer

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    OK dirtfreeak - here is the update.

    Still riding with the forks at 85% aligned and no real rear suspension. Just having too much fun to pull it apart and muck with it.

    Yesterday was my 47th (:huh) birthday. WTF? I guess that's why I am in "Old's Cool" . . . anyway, I decided to take a day off, do some stuff around the house, and take a short ride. I found my way over the the Delaware Water Gap area on the PA side, and found a likely "road" to explore:

    [​IMG]

    Due to the recent heavy rains, the "road" quickly turned into a rutted, rubble filled gully. The crappy pics were taken on my cell phone, and don't really do the slope or conditions justice:

    [​IMG]

    On my way up I was trying hard to pick a line around the worst of it. I tried to go wide in this stretch and got hung up. I let Otto take a quick nap while I figured out what the hell to do. Obviously I went to the right when I should have stayed left :rofl

    [​IMG]

    When I got to the top of the hill, I was on the Appalachian Trail. I followed it as far as the two track went, which was the last transmission tower on the ridge. The Delaware river was far below. I crossed some decent sized mud puddles before I got to this point.

    [​IMG]

    There were a couple of overlooks on the trail too. Great views.

    [​IMG]

    Obviously I do not have the tires for this kind of riding, but the old beast made it up and back without issues, in spite of the rider. A rear suspension and some more aggressive tires would have made the climb a bit less dramatic. It also has the tall final drive, and first gear is too tall for slow, technical climbing. Good thing the R100 has gobs of torque down low! :wink:
  9. Dirt Freeak

    Dirt Freeak Adventurer

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    We used to picnic up there.

    I've ridden that hill on my Mtn Bike, driven it in my Jeep...

    It's CRAZY steep.

    BTW: They used to launch hang gliders off that clear cut in the last pic.


    If you continued straight after you crested the ridge on the access road, the "road" degrades significantly, and there is a big cave on the right.

    It then drops off the back of the ridge and ends up in... well... sort of near Slateford.

    I DO NOT recommend taking your bike past the cave... it gets REALLY gnarly.


    If the gates are open, then TECHNICALLY you could drive over in the LJ :evil
  10. Jim K in PA

    Jim K in PA Long timer

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    Been a while since I posted any updates. Just for my own recollection I will add stuff here from time to time.

    This is a crappy cell phone pic, but I got my ToasterTan upper clamp in the mail this weekend. Now I will tear into the front end to repack or replace the head bearings, reset the fork tubes, and get it ready for spring. With gas prices rising again, I see some miles rolling under my old luftkopf this year. :evil

    [​IMG]
  11. Dirt Freeak

    Dirt Freeak Adventurer

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    I know SPRING has sprung... :evil
  12. Toaster.Tan

    Toaster.Tan Toaster Rider

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    Hey Jim, glad the project keeps moving. I'm interested in how the brace is mounted on the T model: what holes you use and don't use for the instrument bracket and other stuff. Also... how is the dash cover attached to the brace? Are you going to use it or leave it off?

    I'm concerned about your stiction and the burrs you discovered on the tubes in the rebuild. Ping me off-forum should you have ANY questions or problems with brace installation.
    :wink:. You want to be sure to 'relax' those tubes after fitting the top brace and check the movement. You had a BUNCH of stuff going on inside those forks and hope you sorted it out. Double check the parts fiche to ensure you have all the parts stacked correctly. It's not uncommon to have those spring spacers to stiffen the front - especially if a windscreen or fairing was once on the bike to make it heavier. They even made an aluminum damper ring that had a spiral groove in it that increased the fluid resistance. I've got one somewhere I can take a photo of if interested.

    Forks are tricky things, but once dialed in the BMW front end was pretty robust. :clap

    My 2ยข
    Stephen
  13. Jim K in PA

    Jim K in PA Long timer

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    Mr. Freeak - I have some pictures to post up. I hope to have some time this week to get to them.

    Stephen - The burrs cleaned up well, and I have had no recurrence of the leaking upper seals since dressing the tubes. When I installed the TT brace, everything seemed to line up much better. After installing the new rear shocks and restoring the rear ride height, the front forks seem to be performing perfectly. Stiction, if any is occurring, is unnoticable to me. I did not reinstall the front fork spring spacers, but may do so in the future if I feel the need. With the new fork brace, cleaned and re-packed steering head bearings, and the new rear suspension, the old cow feels like an entirely new bike. Handling is infinitely improved.

    I'll post up pictures of the mounting of the guages and the hole used (and not used).
  14. Dirt Freeak

    Dirt Freeak Adventurer

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    Happy Birthday Jim! :freaky
  15. Jim K in PA

    Jim K in PA Long timer

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    Thanks. :1drink

    I should have ridden today. Warm enough, but wimped out due to rain in the forecast.

    How's your bike coming along? :lol3
  16. Dirt Freeak

    Dirt Freeak Adventurer

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    Ouch. :cry
  17. Jim K in PA

    Jim K in PA Long timer

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    Sorry, but you do have several very nice pedal powered ones!
  18. Dirt Freeak

    Dirt Freeak Adventurer

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    Maybe come spring. We'll see what the New Year brings.
    I wish I'd never sold my Honda.
  19. Jim K in PA

    Jim K in PA Long timer

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    It has been a year and a half since I updated this thread. Might as well perform some necromancy. :D

    I'll get some updated shots of some things I have done to the bike in the last year or so. New rear suspension, new tires, etc. Mostly I have ridden it.

    Last winter my friend Budd offered me some off-site storage space for the T, which I accepted. I parked the bike last December and pulled the battery about a week later. This afternoon I took the battery back up to the storage place and re-installed it. I opened the fuel taps, full choke, and cranked it about 4-5 seconds before it lit. It settled into a near perfect idle, and after about 3 minutes of warm up, I rode it home. It ran perfectly, even on the old fuel from last fall. What an amazing machine.

    I have a bunch of parts I have collected to make some changes, and will document them after I get caught up documenting the already done work.

    I also have another airhead to play with, documented in the other thread linked in my sig.

    Cheers!
  20. Bill Harris

    Bill Harris Confirmed Curmudgeon

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    Glad to see that the project is still rolling.

    Pictures. We need lots of pictures. :)


    --Bill