Motorcycle Cannonball 2014 #57 Colorado

Sunday 4/20/2014


evening hope everyone is good. hope you had a good Easter.
finished repairing the one sport scout hub that we re gonna use on the sidecar chassis to allow us a brake. installed new races and bearings. ran the hubs up to Woodys Wheels in Denver early this past week. Zack told me they would be done early this next week. after evenings of trying to find tire options the tallest tire to fill the big fenders are the Cokers. I ordered them Friday, they will be here mid week.
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got one of the welding tables cleaned off, (that’s like a miracle). will be starting on the sidecar chassis in the near future I hope.
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a little while back I had talked about trying to get a bit more air to this old girl. the later 40s and 50s had a larger intake. but the intake nipples are smaller and would not adapt to the later size intake. but the exhaust nipples are the same size. my not thinking things out, Eric had already powder coated the cylinders and I sure did not want to screw them up. after removing the lock pins, making a copper backing I welded up the nipples to shrink them. then welded a nut to them to be able to turn them out. it all went well. cleaned them up and installed the exhaust nipples in the intake ports, drilled and pined them. hopefully she,l run well enough the gas and air wont forget where there going.
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Linda got the seat oiled up. I put the hardware on and mounted it.
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after numerous times fitting the engine to trans, installing clutch and gears, primary cover I think (hope) I m done with that part.
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taking heed from a pretty well known 101 Indian Scout builder George Yarocki I bevel cut the wrist pins and put a degree bend on the keepers to keep them in place. also rounded the squared bottom end of the piston, hoping to leave a bit more oil on the cylinders for the rings.
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rechecked and adjusted ring clearances.
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installed rings (note to self) all three unmarked compression rings were installed with inner bevel (chamfer) up.
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warmed up and installed pistons on rods. (t slot forward)
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install cylinder studs in the cases. index ring gaps, oil em up and install the cylinders.
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install cylinder head studs
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going to use solid copper head gaskets.
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my Brother Karl gave me a hand setting her in the frame.
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hope you all have a great week. LAUGH LOTS.. gary

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3 thoughts on “Sunday 4/20/2014

  1. Charlie, good points. thanks for taking the time to open my eyes to the risk. I ll be addressing this. gary

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  2. Charlie OneOone on said:

    Enhanced, not an enchanted risk of pushing it out of the groove.

    The contact point on the keeper tounges from the pin bevel will also introduce a break point in time.

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  3. Charlie OneOone on said:

    I am sorry to say that the proceedure with the wrist pin clips is slightly wrong in this case. The bevel cut on the wrispins is essential and almost imperative to secure the keepers in a much better way than original, but it is not enough to put a degree bend on the keepers tounges.

    Both of the tounges must be cut off entirely, in order to secure an even pressure around the entire keeper circumference from the wristpin force. With only a degree bend on the tounges, there is always a point where the tounge will touch the wristpin bevel and that’s where the force will be concentrated with an enchanted risk of pushing it out of the groove.

    The right proceedure is to cut both of the tounges off the keeper, so only a C-clip is remaining, then at the edge of the pin bore, drill a countersink hole in the piston just slightly past the keeper grove at the 3 or 9 o’clock position, in order to be able to use a pin or tool to carefully pry the keeper out of the groove.

    Another thing with bending the tounges, is that it is a greater risk of inducing a scratch, or miniscular crack at the bends, that makes it a lot larger risk of the tounge to break off.

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