New Airhead Project

Discussion in 'Airheads' started by guywithchickens, Oct 10, 2017.

  1. fxray

    fxray Long timer

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    1,474
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    Not really, it lives on in pictures. Here's some of the patina I ruined. I can still look at it whenever I want to:

    [​IMG]

    [​IMG]

    [​IMG]
    #81
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  2. bajaburro

    bajaburro Ancient Adventurer

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    It was a joke.
    #82
  3. fxray

    fxray Long timer

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    ^^^Heh! So was my bike. I do like patina, but my R90 had an overdose.
    #83
  4. guywithchickens

    guywithchickens Been here awhile Supporter

    Joined:
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    Oddometer:
    981
    Location:
    Central CT
    Current state below. Working on removing the alternator on the way to removing the engine.

    IMG_1288.JPG
    There seems to be a lot of oil wetting below where the transmission sits. Also the bottom of the transmission was really oily. Is this the sign of a leak?

    IMG_1305.JPG
    Below is a view of some of the rust on the frame. On a side note, the battery box was pretty rusty so I soaked it in Evap-O-Rust for a day. Rust is gone! Pretty amazing.

    IMG_1306.JPG
    #84
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  5. Jim K in PA

    Jim K in PA Long timer Supporter

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    Trans leak looks like it might be from the shift lever seal.

    Good news is that it kept the rust at bay! :lol3
    #85
  6. Uke

    Uke visualist Super Supporter

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    Frame rust as seen is reason enough to move on from a slosh battery to an AGM. Slosh batteries vent acidic fumes, which accelerates rust proximal to the battery tray.
    #86
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  7. guywithchickens

    guywithchickens Been here awhile Supporter

    Joined:
    Nov 29, 2016
    Oddometer:
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    Detached all of the electrics from the engine. Pulled the stator, but waiting for the special bolt to arrive to pull the rotor. Got the heads and cylinders off. Amazingly easy compared to other bikes. Appears to be a good deal of carbon on the pistons and heads, which surprised me for 11K miles. Maybe ran too rich?

    For the valves, should I:
    A. Leave them alone (easiest)?
    B. Lap them (I have the tools and have done this before, pretty easy)?
    C. Send to machine shop for valve job?

    Also I read about the pulse air system. Seriously considering just eliminating it per Snowbum's instructions. The steel fittings in the heads were not even hand-tight when I took them out (!).

    IMG_1328.JPG

    Left side:
    IMG_1329.JPG

    Right side: IMG_1330.JPG
    #87
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  8. Jim K in PA

    Jim K in PA Long timer Supporter

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    Carbon is not horrible, looks like lots of short trips, which might be consistent with such a low mile bike.

    Dad was not a racer, I am guessin'? :D
    #88
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  9. Beemerguru

    Beemerguru Beemerguru...G/S guy

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    Put the side stand down, remove subframe, and pull the engine. Then front fender, entire brake system, handlebars, top triple, then wheel and forks.

    Post a pic of the flywheel area so we can see if anything is leaking back there. Tranny...usually neutral switch leaking or blow by from a rear main seal leaking...both of which are easy fixes with the right tools.

    R65 has a unique wire harness, engine, exhaust, and luggage racks. All still available. And they're a blast to ride.
    #89
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  10. guywithchickens

    guywithchickens Been here awhile Supporter

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    I flipped through your site. Good info there, thanks. I'll look more closely, but I think I may have an oil pump leak. I'll replace the oil pump seal and the rear main seal. I'm already this far into the motor.

    Not today, though, going skiing!
    #90
  11. fxray

    fxray Long timer

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    Skiing -- Yikes! That's way too dangerous. Save yourself for something safer. You know, like motorcycles.
    #91
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  12. guywithchickens

    guywithchickens Been here awhile Supporter

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    Pulled the motor. Very straightforward. Had to finesse the jack to get the mounting bolts unloaded. It wasn't even that heavy. Looks like my teardown needs to move further forward...


    IMG_1339.JPG IMG_1338.JPG
    #92
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  13. guywithchickens

    guywithchickens Been here awhile Supporter

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    As requested...looks like clutch dust with oil wetting at the bottom. I'm guessing oil pump o-ring?

    IMG_1340.JPG
    #93
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  14. Uke

    Uke visualist Super Supporter

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    Or RMS?
    #94
  15. guywithchickens

    guywithchickens Been here awhile Supporter

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    Maybe. I'll replace both seals. Time to start reading up on clutch removal and installation...
    #95
  16. guywithchickens

    guywithchickens Been here awhile Supporter

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    I wear helmets for both! I've been skiing a lot longer than I've been riding, too. They are very complementary. Skiing is good when riding is bad and vice-versa.
    #96
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  17. guywithchickens

    guywithchickens Been here awhile Supporter

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    #97
  18. Jim K in PA

    Jim K in PA Long timer Supporter

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    Looks like all the gaskets but none of the seals. That might be an oil pump cover o-ring in the set. No front cover or rear main seals.

    Call John and ask him. He's pretty helpful.
    #98
  19. Pokie

    Pokie Just plain Pokie.

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    It might be the pump o-ring, the rear main seal or/ and the neutral switch in the transmission. Heck, some of the leak may even be the input seal on the transmission. You need to do more investigation before you start ordering parts. From what I see in your photos, some of the leak/ mess may have been caused by the push rod tube seals as well.
    #99
  20. guywithchickens

    guywithchickens Been here awhile Supporter

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    Xmas is over, time to get back to bikes...

    I spent some quality internet time trying to figure out what came in my gasket set. Below is my annotated version. The red boxes are the one's I'm confused about, but I'll take expert opinion of all of them. Anyone have ideas?

    R65 Gaskets.PNG
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