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Re: Key blanks
Posted by: glivorsi ()
Date: September 12, 2018 06:59AM

What were the original B&S keys made from? They feel like aluminum.

Greg in Wildwood, MO (part of the St. Louis urban sprawl)

1965 Monza Vert 110PG, Crocus Yellow with black interior and top

2014 Honda Accord V6 (DD)
2017 Honda Pilot (wifemobile)
2012 Chevy Sonic 1.8L (kid's car)
1997 Honda CBR1100XX
2006 Mazdaspeed 6 (no longer own)

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Re: Key blanks
Posted by: MattNall ()
Date: September 12, 2018 07:14AM

A Brass alloy.





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Key blanks
Posted by: American Mel ()
Date: September 12, 2018 10:45AM

B&S keys as issued by GM, were brass.
B&S keys as issued by B&S for mowers and such, and many replacements are Aluminum.

.
-----------------------------------------------
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

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Re: Key blanks
Posted by: joelsplace ()
Date: September 12, 2018 11:30AM

Aluminum keys are pretty obvious. They are super light compared to a regular key and they often are anodized in goofy colors but not always. I haven't seen any at a key shop in years. It seems like they were popular in the 80s. I've never seen a genuine Briggs key in aluminum but I don't have the experience that others on here do.

Here's some of mine in blue, green, gold, pink. The others are tarnished brass. I do have silver ones too.

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Re: Key blanks
Posted by: Frank DuVal ()
Date: September 16, 2018 11:09AM

Joel, Here is a picture of a Curtis key sizer. It shows the relationship between the GM1 side with 4 cut depths (B-10, B-11 blanks) and the GM2 side with 5 cut depths (those lettered blanks A,B, C, etc.).

The depth number is a reference to the carriage used on the clipper. It is confusing, as when the GM 1 carriage is used, depths of cuts start with 2 instead of 1. So the first key I decoded with the shop manual picture and cut with my clipper was off on every cut. What? Oh!sad smiley Don't mix sources of information....thumbs up

Frank DuVal

Fredericksburg, VA

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Re: Key blanks
Posted by: joelsplace ()
Date: September 16, 2018 08:25PM

Does anyone have a spare key sizer like that? I need one. Thanks!

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Re: Key blanks
Posted by: MattNall ()
Date: September 16, 2018 10:17PM

Frank what numer is this key size

Guy on ebay has a bunch of different ones.

[www.ebay.com]





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Key blanks
Posted by: Freeman ()
Date: September 16, 2018 10:17PM

joelsplace Wrote:
-------------------------------------------------------
> Does anyone have a spare key sizer like that? I
> need one. Thanks!


Joes, here is one on eBay that has the GM1/GM2 available plus others. Curtis Sizer

Freeman
Rowlett, TX
62 Monza "AirVair"


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Re: Key blanks
Posted by: junkman ()
Date: September 17, 2018 08:19AM

The key on the left is an original GM from the early 1960's and the one on the right is from the 1940's and early 1950's. Note, that the one on the left has the key number stamped into the knock out tab, and the one on the right has the key number stamped below the knock out tab. The 1940's / 1950's key is natural brass, and the 1960's key is nickel plated brass. The left key has a number 15 factory stamp on the rear. I have no idea why this stamp is on the key, and I don't ever remember seeing one on a key other than this one.

---------------------------------------------------------------------------------------------------------------
Woodstock CT... Located on the Connecticut / Massachusetts border, approximately 6 miles from the center of Southbridge MA. About 45 minutes from Hartford CT. 1 1/2 hours West of Boston MA. Woodstock CT to Los Angeles CA 2,937.1 miles. 1 Mile as the crow flies to Big Bird's nest.

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Re: Key blanks
Posted by: Frank DuVal ()
Date: September 17, 2018 03:04PM

My sizer is 19688X (or X88961 grinning smiley).

Both of these sellers list this sizer/decoder.

Frank DuVal

Fredericksburg, VA

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Re: Key blanks
Posted by: Caraholic4life ()
Date: September 17, 2018 03:26PM

The "15" is the designation for the key milling (groove) that GM assigned.
I also have never seen that number on any GM key. It is possible someone stamped it there for any number of possible reasons.

1962 95 F.C. Van
1965 Monza Coupe
Westminster, Maryland

MID ENG enthusiast &
prior Kelmark owner.

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Re: Key blanks
Posted by: joelsplace ()
Date: September 17, 2018 10:24PM

Found one on eBay for $8.95/free shipping.
Thanks!

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Re: Key blanks
Posted by: 145236 ()
Date: September 18, 2018 06:48AM

You don't need no stinkin decoder! If you have a dial caliper, here are the root depths for the cuts.
early 1930's through 1966:
2= .250"(flush cut or no cut)
3= .225"
4= .200"
5= .175"

1967 until? (letter series keys)
1= .248"
2= .223"
3= .198
4= .173
5= .148

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Re: Key blanks
Posted by: joelsplace ()
Date: September 18, 2018 11:04AM

Even better! Thanks!

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Re: Key blanks
Posted by: Frank DuVal ()
Date: September 18, 2018 08:34PM

But 145236 is not a good cut depth, no #6 cut.....grinning smiley Oh, firing order....

Anyway, why are the two columns of cut depths off by 2 thousandths? The chart I found lists them (all GM 35-letter blanks) as the same depth (the 2 thousandths less then the even quarter numbers).

Frank DuVal

Fredericksburg, VA

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Re: Key blanks
Posted by: joelsplace ()
Date: September 18, 2018 08:37PM

Post that chart Frank!
Having the exact cut depths will be great for calibrating my clippers.



Edited 1 time(s). Last edit at 09/18/2018 08:39PM by joelsplace.

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Re: Key blanks
Posted by: Frank DuVal ()
Date: September 19, 2018 10:14AM

Lots of them on the internet. Here is a link to one I found just now:

[www.locksmithschool4u.com]

Waaay down on the page you get after clicking on Auto, look for GM '36+

Frank DuVal

Fredericksburg, VA

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Re: Key blanks
Posted by: 145236 ()
Date: September 19, 2018 11:42AM

This morning I dug out my calipers, rounded up some original B&S blanks in b10 and B 50 and was absolutely certain they would be exactly the size my Jensen MicroDial book said. What I found was the b10 was .248 and the b 50 was .250. So, back to the old key rack and tried Ilco, Dominion, Jet and Star blanks...same deal, .248 to .250 regardless of year, brand or anything else. Obviously depth isn't too critical on sidebar locks.
I had my own locksmith business in the 70's, and large majority of my business was autos. Thought I knew it all backwards and forwards. Guess not.
My old musty HPC code book gave measurements of .248 etc., and my official B&S service manual/parts book had no measurements at all.

Anyway, on adjusting the clippers--I used the Curtis 15 for late GM and the 14 for most everything else. The rare times they needed adjusting I just put in a blank and got the #1 cut to just barely kiss the blank. (or for the earlies, a #2 cut)

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Re: Key blanks
Posted by: joelsplace ()
Date: September 19, 2018 02:56PM

If they were very picky a key would quickly wear to the point where it wouldn't work.
Thanks for the info. I'm learning a lot that I didn't know I needed to know. Good stuff!

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