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Thread: 1966 Shovel engine rebuild

  1. #91
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
    Posts
    3,069

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    Steve!

    I have four grades of Clover compound, and even the 6-A would not improve a wide seat.
    Just like a poppet valve, a narrow seat seals best, so a flat grind approaches an ideal sharp line upon the surface of the ball.

    The tools, with the exception of the the flat stone on the left, were all failures.
    Although the ball burnisher on the right improved some, particularly aluminum bodies, it proved disastrous on some chilled cast iron bodies.

    I lost a lot of time and a considerable investment on that particular cranial flatulence.

    ....Cotten
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

  2. #92
    Join Date
    Apr 2008
    Location
    Upper Yarra Valley, Victoria. Australia
    Posts
    749

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    cranial flatulence. he he

    P7040004.jpg

    P7180001_1.jpg

    Oil hole to the bottom of the timer shaft.

    P7120019.jpg
    Steve Little
    Upper Yarra Valley. Victoria.
    Australia.
    AMCA member 1950

  3. #93
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
    Posts
    3,069

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    Steve!

    You've got an aluminum pump.

    That's one more reason to avoid lapping the seat.

    ....Cotten
    Last edited by T. Cotten; 07-18-2017 at 09:01 AM.
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

  4. #94
    Join Date
    Apr 2008
    Location
    Upper Yarra Valley, Victoria. Australia
    Posts
    749

    Default

    Thanks Tom.

    A couple of the sealing flanges of the push rod tubes needed attention.
    The picture might not be picking it up but the flanges are dented and may not seal to the corks.
    This happens when an owner pries a screw driver under the flange when the cover is hard to slide up.

    P7180005.jpg

    I have male and female mandrels to slide over the tubes which allows me to press the flange straight.
    Fitted the inner tubes in the tool gave it some liberal pressure in the small garage press. No more wrinkles.

    P7180006.jpg

    P7180005.jpg

    After straightening the flanges I buffed the rust off the inner tubes to make them nice and smooth, so the cork wont bind on the rust when retracting the covers.

    P7180009.jpg

    The gear cover had custom studs and chrome acorn nuts which is pictured to the left of the shot on the cover.
    I replaced them with a cadmium Colony replacement screws kit.
    Dabbed the head of each new screw with some lapping paste and then a light lap into the holes.
    This settles out any high spots or scaring from previous builds, and allows the taper of the screw head to match the hole and maintain even pressure on the cover.
    P7180002_1.jpg

    Pre loaded the pinion shaft with oil before fitting the cap head screw. I keep pumping oil until it comes up the side of the con rods

    P7190010.jpg
    Steve Little
    Upper Yarra Valley. Victoria.
    Australia.
    AMCA member 1950

  5. #95
    Join Date
    Apr 2008
    Location
    Upper Yarra Valley, Victoria. Australia
    Posts
    749

    Default

    Hi.
    Can anyone identify this oil pump.
    I would like to buy some gaskets for it, but it is out of my knowledge range.
    The date stamp says it was made in 1995. Is it a Evo pump or just a reproduction pump?

    P7210003.jpg

    P7210004.jpg

    P7210005.jpg
    Steve Little
    Upper Yarra Valley. Victoria.
    Australia.
    AMCA member 1950

  6. #96
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
    Posts
    3,069

    Default

    Quote Originally Posted by Steve Little View Post
    ...Pre loaded the pinion shaft with oil before fitting the cap head screw. I keep pumping oil until it comes up the side of the con rods...
    Steve!

    I found that pre-oiling risks oil drooling back out to foul gasket surfaces, unless you can assemble quickly.
    (And I always smeared everything with a film of petrolatum anyway.)

    So immediately prior to firing the motor, I would attach a charging bottle of oil to the pump inlet and push in about a half o' quart with low air pressure.

    You never know how long a motor might sit before it sees duty.

    ....Cotten
    Attached Images Attached Images
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

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