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Thread: Siebenrock 800to 1000cc upgrade for my 1983 R80RT

  1. #1

    Siebenrock 800to 1000cc upgrade for my 1983 R80RT

    Thinking about doing this upgrade to my 1983 R80RT. The heads are sent to Teds Beemer shop for rework. I have read on the EME site that nothing else is required. Has anyone else done this upgrade, and how did it go, what else we needed?
    Still thinking about this.
    Any comments or thoughts will be appreciated.
    Jim

  2. #2
    Registered User GTRider's Avatar
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    Quote Originally Posted by 30807 View Post
    Thinking about doing this upgrade to my 1983 R80RT. The heads are sent to Teds Beemer shop for rework. I have read on the EME site that nothing else is required. Has anyone else done this upgrade, and how did it go, what else we needed?
    Still thinking about this.
    Any comments or thoughts will be appreciated.
    Jim
    Make sure you indicate to the Beemershop that you are planning on the swap, as it makes a difference in valve and seat size selection.

    Best,
    DeVern
    DGerber
    1983 R80ST 1984 R80 G/S-PD 2004 K1200GT w/Hannigan S/C 2010 K1300GT 2018 R1200GS
    BMWMOA#52184, AMA#271542, IBA#138

  3. #3
    Liaison 20774's Avatar
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    I bought my Siebenrock kit to change the top end on my R100/7 from Ted. Why not work with the one shop? He'll make sure you have what you need.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  4. #4
    Quote Originally Posted by 20774 View Post
    I bought my Siebenrock kit to change the top end on my R100/7 from Ted. Why not work with the one shop? He'll make sure you have what you need.
    Thanks Kurt!
    There is a local supplier Euromotoelectric that has the kit for $1,175 and a local BMW mechanic/expert will help me with the install. I will ask Ted when I speak with him tomorrow.
    I will have to pay sales tax locally, but the shipping could eat all of that.
    Haven't decided to do this yet, but sounds like the Siebenrock stuff is good and sound.

    Jim

  5. #5
    A few years ago I sent the heads on my 77 R100RS to Ted Porter for rework. The bike was burning oil so I obtained the Seibenrock 1000 cc nikasil-coated cylinders and associated pistons and rings. The heads came back so clean I asked Ted if they were the same ones that I'd sent him. He said that they were the same, but he does a thorough cleaning before doing work. With the new and re-worked engine bits the bike runs better than ever with no oil consumption. I feel that it was money well spent.

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