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  • friday Posts: 90
    Stock Poster friday
    13 Sep 2018 06:15 AM
    some old HD and Indian FWs have the holes drilled opposite the crank , then there are some that have holes drilled on the rim close to the crank < are these ones evidence of dynamic balanced ?

    Jim Mosher had his salt bike dynamic balanced , they have rim holes

    http://performanceindian.com/Bottom%20End.html
  • Krash Kinkade Posts: 2114
    Motor Head Krash Kinkade
    13 Sep 2018 12:22 PM
    Quoting friday on 13 Sep 2018 06:15 AM
    some old HD and Indian FWs have the holes drilled opposite the crank , then there are some that have holes drilled on the rim close to the crank < are these ones evidence of dynamic balanced ?

    Jim Mosher had his salt bike dynamic balanced , they have rim holes

    http://performanceindian.com/Bottom%20End.html
    I think the factory static balanced some of the old ones. and the drill holes in flywheel could be result. my Shovel had them in the stock cast iron flywheels. but the S&S Flywheels steel or forged same as they still use. only new late model S&S Use the big pressed pin ( just the fit different to stock late HD big pin ) never seen an S&S pin slip but seen Harley big pins slip.
    I have seen Flywheels John Treese has made a complete one off, top Fuel HD motor John made too , made to use a Wibble Supercharger he made the heads cast with a stainless steel chamber that is cast into the head. but you don't see John's motors on the internet. the flywheels Jim Mosher has pictured , are the same as the flywheel my shovel has. you can remove metal, or you can add this really expensive & heavy gold metal you press in. but unless you lighten some flywheels a lot you rarely see the heavy pressed in, to add weight in Harley's. but see it in V8 racing cranks a lot especially speedway sprint cars. you only need to dynamic balance once, then if you need new pistons you just remove metal off pistons or pin, to get weight to same as original dynamic balance.
  • Hilly Posts: 2159
    Townsville
    Motor Head Hilly
    13 Sep 2018 05:05 PM
    Makes sense, is John still working Krash?
  • Krash Kinkade Posts: 2114
    Motor Head Krash Kinkade
    14 Sep 2018 08:58 AM
    Quoting Hilly on 13 Sep 2018 05:05 PM
    Makes sense, is John still working Krash?
    Hilly, not sure if John is still working, but was told he goes to the salt in SA.
    when I see Cow I will ask.
    you have meet him & seen his work. if he had a web page he would have been over run with work. I told some Americans about products he designed and made. they all searched the net could not find anything.
    he even made the masters & had a cam manufacture in Victoria make cams for him.
    The PanMan ( I think he might have died ) he used to say, when he was working at Sturgis, customers of pistons he designed would come with questions & ask advice. then would ask for his web address . he said if you haven't got a web address they think you can't be that good.
    The Top Fuel heads John made I saw them and the stainless chamber was cast into alloy. I have seen a lot of old top fuel Harley heads with stainless chambers, but all the others were bolted in stainless chamber, not cast in ( very hard to do!! ).
    my old sporty not in same class as John's!! LOL

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