Building a 42WLA Blank Boss Engine in a Crate

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matt506
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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by matt506 » Sat Apr 08, 2017 4:16 pm

If we had thumb up icons I would give you couple dozen.
SFC Matt Miller, "ALLONS"
4-42 GPW,
4-45 MB,
4-43 MBT,
4-43 WLA
"Find The Bastards and Pile On" 11th ACR 87-94

OLDABEWLA
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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by OLDABEWLA » Sat Apr 08, 2017 7:51 pm

Hey Matt,

Don't one of the guys from your Milwaukee vintage motorcycle club have a crated WLA engine? I ran into a guy from your club at Davenport selling one.
☆42WLA Harley-Davidson #19,246 Type III

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17thAirborne
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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by 17thAirborne » Fri Apr 14, 2017 11:36 am

For later display with the engine crate.
IMG_3924.JPG
IMG_3924.JPG (225.64 KiB) Viewed 403 times
Oz

WLA SN 42WLA56511, USA-692406
WC-12 SN 8682327, USA W-231808

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by 17thAirborne » Fri Apr 14, 2017 11:41 am

There is one in the High Desert Museum in OR. I am working with the curator to get the dimensions. Will post them here on a spreadsheet. Thanks for the moral support. I hope others can use this data too.
Oz

WLA SN 42WLA56511, USA-692406
WC-12 SN 8682327, USA W-231808

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by 17thAirborne » Fri Apr 14, 2017 11:41 am

matt506 wrote:If we had thumb up icons I would give you couple dozen.
Thanks much :)
Oz

WLA SN 42WLA56511, USA-692406
WC-12 SN 8682327, USA W-231808


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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by matt506 » Fri Apr 14, 2017 11:46 am

I dont know thats a good question. I will ask on the clubs facebook page and try to run it down. Hell i might try to buy it if thats the case.
SFC Matt Miller, "ALLONS"
4-42 GPW,
4-45 MB,
4-43 MBT,
4-43 WLA
"Find The Bastards and Pile On" 11th ACR 87-94

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by matt506 » Fri Apr 14, 2017 11:47 am

Wish i could get a few more of those display cases. Had heard they stopped makeing them.?
SFC Matt Miller, "ALLONS"
4-42 GPW,
4-45 MB,
4-43 MBT,
4-43 WLA
"Find The Bastards and Pile On" 11th ACR 87-94

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by chibobber » Fri Apr 14, 2017 5:43 pm

Google "Riker Mounts". Tons available in various sizes. :)

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by 17thAirborne » Tue Apr 18, 2017 11:03 am

There are a few problems with the dimensions that I have from the HDM. The crate in the HDM has plexiglass in front, and the curator can't get exact dimensions for some of the interior parts, and I don't want to be a huge pest about this, but I think I have everything i need to draft some real close dimensions. He was unable to get anything close for the inside wood blocks, but the engine case itself has a few known dimensions such as the distance between the left and right side mounting holes, the difference in the height between the two engine mount shelves where the mounting holes are, and things like that. I have the width and height of my NOS carby box, so I can do a bid of reverse calculations to make this work.

Also the overall dimensions given (heigth 21.5", width 27.0", depth 15 1/2") included small portions of the front and rear panels which were sort of ripped off leaving pieces on the lower edge. Given the nominal thickness of those pieces at 3/4", I make the depth of the case without a front or back cover to be 14" I plan on building just the circumferential shell without a front or back panel, and then adding two pieces of plexi-glass as view windows. Those will make the case rigid.

The thickness of the top and bottom panels are each 3/4", so I subtract that from the total height to get the height of the side panels at 20 3/4".

I'll transfer this all to a spreadsheet, then make a list of materials. Give me a few weeks to sort it all out.
Oz

WLA SN 42WLA56511, USA-692406
WC-12 SN 8682327, USA W-231808

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by doug p. » Tue May 02, 2017 1:37 pm

Here's a crated engine I photographed at the Wauseon, Ohio Antique Motorcycle rally a few years ago:
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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by 17thAirborne » Wed May 03, 2017 7:05 am

That sure looks great. Compared to the asking price today that is a steal. Thanks for posting. It will help
Oz

WLA SN 42WLA56511, USA-692406
WC-12 SN 8682327, USA W-231808

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by doug p. » Wed May 03, 2017 3:10 pm

I can send you the full-sized photo if you want.

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by 17thAirborne » Fri May 05, 2017 8:56 am

doug p. wrote:I can send you the full-sized photo if you want.
pm sent

thanks
Oz

WLA SN 42WLA56511, USA-692406
WC-12 SN 8682327, USA W-231808

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by 17thAirborne » Tue May 09, 2017 2:31 pm

Next week I will begin the flywheel and connecting rod assembly process. I have everything gathered except the rollers for the connecting rod bearing as I need to mic the race, and I am awaiting a set of thrust washers in various sizes. They should be in before next wed.

Bill and I will mic and inspect everything to verify tolerances and bearing sizes. We'll spend a day working on that and then another time to assemble everything. Here are some images of the parts and as indicated in the manual. Everything is NOS except the flywheels and connecting rods are OEM Used. The .040 piston, the gear and sprocket side shafts are new US made. The bearings are .004 over, but I can use the races and order a set of correct sized US made roller bearings once we mic the race in the connecting rods.
TM Connecting Rod.jpg
TM Connecting Rod.jpg (183.9 KiB) Viewed 228 times
Connecting Rod parts.jpg
Connecting Rod parts.jpg (168.45 KiB) Viewed 228 times
tm flywheels.jpg
tm flywheels.jpg (144.07 KiB) Viewed 228 times
IMG_3966.JPG
IMG_3966.JPG (162.56 KiB) Viewed 228 times
Oz

WLA SN 42WLA56511, USA-692406
WC-12 SN 8682327, USA W-231808

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Re: Building a 42WLA Blank Boss Engine in a Crate

Post by 17thAirborne » Wed May 10, 2017 8:59 am

COST UPDATE

So far I am at $3,852. This includes all parts purchased so far and price estimates for the few remaining parts. I have to send the cases out for installation of the bushings and that will add around $200 or so with shipping. I also have to figure an amount if my generator needs to be rebuilt.

I have been maintaining a spreadsheet, and as soon as I get the total costs entered I will post that data here including part name, number, qty and price. I estimate the entire project including wood, parts and materials for a crated 42WLA engine will run around $4200. I have seen a NOS blank boss engine sell for $4595 without generator, and rebuilt engines or various sorts around the $3500-4500 range. The standard 45 engine in unknown state with most of the parts sells in the $2500 +/- range. You probably have to add a few hundred to that to the worn get parts and other needed items.

It seems one could buy a nearly complete engine and stuff it in a crate for less, but this one will have nearly all NOS/OEM parts and the internals will be new, unworn and ready to run. It will be as close to an "engine in a crate" as I can get given the new asking price of the two I have discussed with sellers which are both asking $10,000. I can't imagine anyone paying that, so $4200 seems reasonable to me. Besides, I will have had a great time scouring the lands for the needed parts, will have learned much from working with Bill, and will have a nice addition for display at shows.
Oz

WLA SN 42WLA56511, USA-692406
WC-12 SN 8682327, USA W-231808

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