Needing a little help

ozzie46 · Jul 21, 2022

I wonder if some one would sell me a couple of pieces of mild steel and broach a 3/8 square hole in them. They are the crank cheeks for a 9 Cyl radial. the 2 pieces are bolted together and the hole broached so that they are in alignment. Attached is a pic of the dimensions. The steel parts are .500 x 1.625x 3.218.

Pls let me know if you can help and how much it will cost. I cant see spending almost $200.00 on a broach I will only use once.
Thank you
Ron

stevehuckss396 · Jul 21, 2022

I might be able to help out. I have the broach in the garage. I would have to look for the steel. I think I used 12L14 for mine.

Where in the orb are you located. I'm in the USA in Michigan just north of Detroit.

ozzie46 · Jul 21, 2022

Hi Steve I am in Pueblo Colorado. I built your Lil Demon also.
I can do the rest of the machining I just need the square hole and material.

Ron

stevehuckss396 · Jul 22, 2022

If you are not in a hurry I might be able to do it next weekend. I'll have a look around for a piece of stock. Way too busy this weekend.

ozzie46 · Jul 22, 2022

Thank you, when ever you can get to it is fine. There's plenty more to work on.

Ron

stevehuckss396 · Jul 22, 2022

Don't I know it. I'm doing 2 of them. Do you have any cnc equipment? I converted a 9x20 lathe and it paid for itself just doing the cylinders and heads.

ozzie46 · Jul 22, 2022

No I don’t have cnc. Only manual. Dont’t know cad and to costly to convert to cnc.
Fixed income .
Ron

stevehuckss396 · Jul 22, 2022

There is a hole .953 inches east of the 3/8 square. What size hole is it? I just need to drill that hole and then I can remove the pair and broach the square.

ozzie46 · Jul 22, 2022

That hole is supposed be .188 or .1875. Can’t seem to find out what it is for. I may have to call Lee to find out.

Ron

stevehuckss396 · Jul 22, 2022

I think it's there so when you put the crankshaft into the alignment fixture you can slip a pin in to index the counter weights so they match.

ozzie46 · Jul 22, 2022

Makes sense.

stevehuckss396 · Jul 22, 2022

Pm your address. There is a good chance I will have it ready to ship tomorrow. If I do ill get it sent out as soon as possible. Once I know shipping cost you can send a check for that amount or PayPal plus a couple bucks to cover the PayPal fees. Metal was free. Spent about an hour on it so labor is free. 3 screws were free. Just shipping buddy.

ozzie46 · Jul 22, 2022

Wow ,Thanks so much. Pm coming.
Will use Paypal

ozzie46 · Jul 26, 2022

Steve, I figured out what the .188 hole is for . It is an alignment hole to align the crank cheeks and the drilling jig to drill the oil passages for the master rod journal and the crank shaft.

Ron

stevehuckss396 · Jul 26, 2022

I knew it was something like that. I reamed them to .1885 so a .1875 pin will slip through nicely.

ozzie46 · Jul 26, 2022

thanks,

SmithDoor · Jul 26, 2022

ozzie46 said:
I wonder if some one would sell me a couple of pieces of mild steel and broach a 3/8 square hole in them. They are the crank cheeks for a 9 Cyl radial. the 2 pieces are bolted together and the hole broached so that they are in alignment. Attached is a pic of the dimensions. The steel parts are .500 x 1.625x 3.218.

Pls let me know if you can help and how much it will cost. I cant see spending almost $200.00 on a broach I will only use once.
Thank you
Ron

You can buy tubing with square hole.
I have also used impact sockets too they can machine for a press fit.

Dave

SmithDoor · Jul 26, 2022

ozzie46 said:
I wonder if some one would sell me a couple of pieces of mild steel and broach a 3/8 square hole in them. They are the crank cheeks for a 9 Cyl radial. the 2 pieces are bolted together and the hole broached so that they are in alignment. Attached is a pic of the dimensions. The steel parts are .500 x 1.625x 3.218.

Pls let me know if you can help and how much it will cost. I cant see spending almost $200.00 on a broach I will only use once.
Thank you
Ron

Here is a link

http://bldtools.com/products/tooling-components/square-hole-tool-bit-sleeves/
Dave

SmithDoor · Jul 26, 2022

http://www.greenbaymfgco.com/12L14-sleeves.php

ozzie46 · Jul 27, 2022

Steve , received items today. Again thank you so much.
Ron

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