? Question to fellow inmates R100 GSPD Engine

Discussion in 'Airheads' started by patrkbukly, Jan 1, 2013.

  1. patrkbukly

    patrkbukly Life at 10,000 feet Supporter

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    Hey folks,
    I have a 93 GSPD. 80K on the clock, overall runs great.

    My question is this.
    Rather than rebuild the engine one day, someday...Seems I can get a shortblock on Ebay for about 300, heads & pistons Touratech 1600.....
    Do you think that would be about all I would need to do to then have a slightly higher performance engine (Touratech pistons) and most of my original stuff swapped over making my engine rebuild project and build and swap?

    Is that an easier route?

    More efficient?

    Foolishly more expensive?

    A turn for the worse?
    #1
  2. Tripletreat

    Tripletreat Long timer

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    At 80K miles, you could easily have a loooooong way to go before you need to seriously contemplate a complete engine rebuild. It pretty much depends on how you've kept up with the routine maintenance on the machine. Those engines will run longer than you will if you treat them right.
    As for buying a short block on the market, you will be exposing yourself to potentially unwelcome surprises. Who's to say the crank isn't toast? The safer route would be to rebuild a know entity (your present machine) than to begin buying pigs in a poke.
    #2
  3. patrkbukly

    patrkbukly Life at 10,000 feet Supporter

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    Thats sort of what I thought and definitely what I was hoping to hear.

    Overall she runs fantastic. Only real issue is a stripped bolthole on my oil filter cover (the 3 hole triangle).

    Thanks Triple
    #3
  4. Paul_Rochdale

    Paul_Rochdale Been here awhile

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    Patrick

    We have a saying - "There are more ways to kill a cat". In other words no matter what you or I believe, others will disagree. I also have an R100GS-Paris Dakar which is in a hundred parts as we speak. We have a well known BMW specialist here, Jim Cray, who is local to me. About eighteen years ago he modded the engine in my R100/7. The valve seats were replaced with those that would cope with lead-free petrol and more importantly he twin plugged the cylinder heads. This completely transformed the bike. Acceleration was improved and she ran like a turbine at 100mph. The fuel consumption also improved from about 45mph to 60mpg. So this is what Jim is going to do with my PD engine. No HC pistons, no fancy and bigger carbs, no high lift cams, just twin plugging and regular servicing. I want a reliable and oiltight engine. 100mph and good fuel consumption, reliable starting and trouble-free running. That's what I'm after.
    #4
  5. patrkbukly

    patrkbukly Life at 10,000 feet Supporter

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    Thanks for the reply....now....Holy crap thats one hell of a performance upgrade.

    How much did that cost you?

    60 MPG would make range an even more impressive feature than I already have.

    Post a pic or 2 if you don't mind. Love seeing others loved airheads.
    #5
  6. hardwaregrrl

    hardwaregrrl Can't shoot straight Supporter

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    Were talking imperial gallon here....correct?
    #6
  7. Bulldust

    Bulldust Bulldust

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    Is there any other kind?
    #7
  8. dancerdave

    dancerdave Been here awhile

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    I have over 140k miles on my gspd and never a wrench on the motor,tranny or rear end..(except valve adjustment) i bought it new in 1991..keep the fluids changed.. keep the air cleaner clean and ride it
    #8
  9. patrkbukly

    patrkbukly Life at 10,000 feet Supporter

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    can you see the stripped oil filter cover bolt from your angle....look away,....she is not an animal.

    [​IMG]
    #9
  10. patrkbukly

    patrkbukly Life at 10,000 feet Supporter

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    [​IMG]
    #10
  11. Beemerguru

    Beemerguru Beemerguru...G/S guy

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    You can do the entire rebuild yourself in about 8 hours with the right tools. Add another couple days to have the rods, pistons, wrist pins balanced at a good speed shop.

    I usually keep a couple dual plugged heads and a couple sets of balanced rods on the shelf for this type of job. Order a set of Siebenrock R100 upgrade pistons/cylinders, a head set kit, a set of rod bearings and the bike is ready the next day...assuming the exhaust nuts come off like they should :lol3
    #11
  12. bmwblake

    bmwblake upside down parker

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    i'd love to hear more about this bike, maybe in your own thread. i can't imagine that you have the same pushrod tube seals, original driveshaft, paralever bearings, wheel bearings, cam chain, clutch, trans neutral switch, etc, for 140k. you must be blessed by the moto gods in a much bigger way than i.



    #12
  13. Biebs

    Biebs Been here awhile

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    Ok I take offense to your sayiny - "There are more ways to kill a cat". that is not correct. no harm is to be done to animals on this website!!! ( maybe the mods will want me as a moderator) anyway the correct saying is :

    There's more than one way to SKIN a cat!!!!"

    Oh where were we about this thread - these are BMW's we are talking about!! They were built right from the factory what are you trying to upgrade?? If I want to upgrade I will buy a Royal Enfield and then I have something that needs upgrading!! Just using the stock BMW setup is good as it gets- keep up the maitenance and ride!!!

    I speak from running BMW M3 on the track having to replace a clutch for track use and the best clutch to use was - The stock Clutch!!!!:clap

    Just say'in:freaky
    #13
  14. Paul_Rochdale

    Paul_Rochdale Been here awhile

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    Gosh Biebs, I stand corrected, you are right Sir. Well except for 'sayiny' and 'offense' and 'maitenance' and spending far far too long on the exclamation mark key:D
    #14