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  1. Replies
    59
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    7,984

    Hi Dana, I found out there was a problem with...

    Hi Dana,
    I found out there was a problem with the brushes about a week before the last cannonball from Portland to Portland.
    It seems that all the brushes being made now are too soft and leave a...
  2. Replies
    9
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    1,675

    Hi Everybody, I thought I would update the group...

    Hi Everybody,
    I thought I would update the group on what work I have done on the Excelsior.
    About 2 years ago I was contacted by a gentleman from Omaha, Nebraska, about making flywheels for a 1916...
  3. Replies
    27
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    7,200

    Hi Jerry, This thread seems to have been...

    Hi Jerry,
    This thread seems to have been hijacked by people talking about plating the outside of the cylinders instead of the inside and don't know what nikasil is.
    We have been plating KR & WR...
  4. Replies
    22
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    5,326

    The Chevy Vega was not Nikasil. Not even...

    The Chevy Vega was not Nikasil.
    Not even plated!
    It was a high silicon aluminum alloy in which the aluminum was etched back after boring to expose the very hard silicon.
    McLaren Racing had...
  5. Replies
    2
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    1,018

    Hi Sam, Keep in mind that when these were made...

    Hi Sam,
    Keep in mind that when these were made there were only about 3 types of gasket cement available, all made by Permatex.
    # 1 was a paste, came in a tube and was hardening
    # 2 was a paste,...
  6. I looks like you have a later sport scout frame....

    I looks like you have a later sport scout frame. The 741 did not have the dog leg.
    741 forks are aprox 18" from the axle to the lower pivot, SS are only about 16".
    Also 741 have 2 holes on the...
  7. Replies
    5
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    1,902

    I have top of the line racing pistons for the...

    I have top of the line racing pistons for the STROKER 45 made for me by Wiseco.
    Available in STD., +.020, +.040, +.060 OS.
  8. Replies
    18
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    3,022

    Tom, Go back and reread what I said about...

    Tom,
    Go back and reread what I said about installing them.
    With the dry ice and heat they fall in.

    Also if you have a MACHINERY HANDBOOK look at it.
    It has been the resource for machining since...
  9. Replies
    18
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    3,022

    The amount of press fit is dependent on the...

    The amount of press fit is dependent on the diameter.
    The larger diameter the larger the press
    Think about the press fit on a valve guide for Harley flat heads.
    Diameter is between .5625 & .5937....
  10. Replies
    18
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    3,022

    The seat material to use in aluminum heads is...

    The seat material to use in aluminum heads is ALUMINUM BRONZE.
    Correct alloys are either C-954 (generic classification) or AMPCO 18 (trade name).
    Expansion rate for both is .000009"/"/deg. F....
  11. Replies
    6
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    3,238

    We have been using Nikasil to reclaim WR & KR...

    We have been using Nikasil to reclaim WR & KR cylinders for several years instead of sleeving them.
    Advantages are no weakening of the cylinder and better heat transfer.
    The Nikasil seems to have...
  12. Replies
    5
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    2,356

    Aluminum will not take the stress of the valve...

    Aluminum will not take the stress of the valve train.
    I am just finishing up w complete redesign on the scout lifters with many improvements and will be available for sale by the end of the year....
  13. Replies
    1
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    1,670

    KHK uses the same piston as the K & KR. I stock...

    KHK uses the same piston as the K & KR.
    I stock Std, .020, .040, & .060 OS, Made to my specs by Wiseco.
    www.enfieldracing.com
  14. Replies
    4
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    1,341

    19251 Left is new. Right is after 1 race....

    19251
    Left is new. Right is after 1 race.
    www.enfieldracing.com
  15. Replies
    5
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    3,180

    Hi, I just purchased the casting patterns for...

    Hi,
    I just purchased the casting patterns for the KR cylinders from S&S Cycles.
    My plans are to also reproduce the KH cylinders in the future.
  16. Replies
    12
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    7,429

    The taper is 6 deg. per side, from Indian factory...

    The taper is 6 deg. per side, from Indian factory drawings.
    The theory behind lapping is that the abrasive imbeds in the softer material and actually grinds away the harder material, so that if you...
  17. Replies
    6
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    3,742

    Hi Brian, I just saw your post. Did you call...

    Hi Brian,

    I just saw your post. Did you call me earlier today? Call me back, I think I can clear up some misconceptions for you.
    Bruce
  18. Replies
    8
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    3,892

    Hi Chris, The patterns are for the later...

    Hi Chris,

    The patterns are for the later chief.
    I probably will not do them because as with the Henderson, there are already others making them and the total market is too small to support...
  19. Replies
    8
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    3,892

    All I got of the Henderson was the cylinder...

    All I got of the Henderson was the cylinder patterns.
    no others.
    I do not anticipate making any since they are available elswhere.

    Bruce Argetsinger
    AHRMA Dirt Track # 67J
    www.enfieldracing.com
  20. Replies
    1
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    1,595

    New source for ul cylinders

    We are proud to announce that Enfieldracing.com has completed the purchase of all the flathead casting patterns from S & S Cycles. This includes the UL cylinders, engine cases and cam cover, K/KR...
  21. Replies
    8
    Views
    3,892

    New source for ul cylinders

    We are proud to announce that Enfieldracing.com has completed the purchase of all the flathead casting patterns from S & S Cycles. This includes the UL cylinders, engine cases and cam cover, K/KR...
  22. Replies
    38
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    13,874

    Hi Guys. I just thought I'd give you some of my...

    Hi Guys.
    I just thought I'd give you some of my expreience with broken valves.
    At the end of May, I raced the vintage mile at Springfield, one of my bikes a 500cc single cylinder Royal Enfield a...
  23. Replies
    4
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    4,669

    Hi Guys, Change of vender spaces Warren...

    Hi Guys,

    Change of vender spaces
    Warren Bennet of 45 Restoration, won't be making it to Davenport this year, so he is letting me use his space.
    Look for the old Indian and Harley race parts at...
  24. Replies
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    4,669

    I will have sample cylinders and other parts at...

    I will have sample cylinders and other parts at Davenport.
    Come see me at space V-10.

    Bruce Argetsinger
    AMCA # 14246
    www.enfieldracing.com
  25. Replies
    4
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    4,669

    New big base scout cylinders

    Hi Guys,
    The cats going to be out of the bag shortly.
    THE BIG BASE SPORT SCOUT CYLINDERS ARE NOW BEING OFFERED FOR SALE! It is my understanding that these cylinders will also fit the 101 Scout....
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