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01-13-2021, 10:48 AM | #1 |
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Join Date: Nov 2013
Location: Ahwatukee, AZ
Posts: 115
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"Diamond engine"
Took my '29 CCPU to Sam at Arizona Model A yesterday. Sam took a look at it and informed me that it has a "Diamond" engine, which, even though I've been messing with these since the early '60's I'd never heard of. When I got home I did some research and discovered a code of K107 on the engine side. That means that it was built on 1 November 1937! Wow. It also has a stamp from a rebuilder (no longer in business) from Utah. Then his Dad straightened out a slightly bent right front frame horn using a high-lift jack a tool that I don't have. Took 5 minutes! No charge! I'm a happy camper.
When I bought the truck the engine was stuck but I took a risk. Got it freed up after laying a smoke screen in the neighborhood from Marvel Mystery Oil and Kroil, and now it runs great except the Tillotson carb still leaks. Thanks Sam and Dad! Ned
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Retired civil engineer. Winters in Phoenix, summers in Ipswich, Mass. and North Dakota. '29 closed cab pickup- Excellent AZ truck. '29 roadster- Owned for 21 years but now sold. '28 CC pickup- My first car in Andover, MA back in '62- '63. Last edited by neds29; 01-14-2021 at 10:51 AM. Reason: corrected build engine date |
01-13-2021, 11:34 AM | #2 |
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Location: Red Deer, Alberta
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Re: "Diamond engine"
Sounds like you had a great day, congratulations, and a tip of the hat to Sam and Dad.
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01-13-2021, 12:18 PM | #3 |
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Join Date: Jun 2010
Location: Temecula, CA
Posts: 4,089
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Re: "Diamond engine"
e-mail me at [email protected] and I'll send you an article I wrote on diamond engines.
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01-13-2021, 02:33 PM | #4 |
Senior Member
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Re: "Diamond engine"
I've got a "diamond" as well in my 1931 CCPU. Mfg. date Aug. of '37.
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01-13-2021, 02:54 PM | #5 | |
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Join Date: May 2010
Location: Camarillo, CA and Pine Grove, CA
Posts: 2,832
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Re: "Diamond engine"
Quote:
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
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01-13-2021, 03:04 PM | #6 |
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Join Date: May 2010
Posts: 120
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Re: "Diamond engine"
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01-13-2021, 08:53 PM | #7 |
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Join Date: May 2010
Location: Nelson. New Zealand
Posts: 2,009
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Re: "Diamond engine"
Neds 29 Great folk at AZ Model A Sam & Sammy , you guys are very lucky to have them help you,But Sammys Mom Bonnie she is the real worker, we can,t wait to get back there, Be cooler there than here at present, warm 84*
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01-13-2021, 11:44 PM | #8 |
Senior Member
Join Date: Nov 2013
Location: Ahwatukee, AZ
Posts: 115
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Re: "Diamond engine"
Quickchange- Did you meet him when he took his A and friends to NZ? That must have been quite the neat trip. And yes, he's a very helpful nice guy. Best part is he's nearby! His Mom's always working.
Ned
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Retired civil engineer. Winters in Phoenix, summers in Ipswich, Mass. and North Dakota. '29 closed cab pickup- Excellent AZ truck. '29 roadster- Owned for 21 years but now sold. '28 CC pickup- My first car in Andover, MA back in '62- '63. |
01-14-2021, 12:17 AM | #9 |
Senior Member
Join Date: Dec 2013
Location: No Cal
Posts: 224
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Re: "Diamond engine"
Another vote of confidence for Sam and the crew
at Arizona Model A. Have found them to be most helpful... and parts ship on time- Gil. NoCal |
01-14-2021, 01:54 AM | #10 |
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Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,496
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Re: "Diamond engine"
Sammy's Model A knowledge is legendary and he is not backwards in sharing it. I've known him for quite a while now and he has been helpful right through. Sam and Bonnie too.
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01-14-2021, 09:29 AM | #11 |
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Join Date: Jan 2016
Posts: 2,101
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Re: "Diamond engine"
So, what are the advantages, or disadvantages to a Diamond engine?
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01-14-2021, 10:53 AM | #12 |
Senior Member
Join Date: Nov 2013
Location: Ahwatukee, AZ
Posts: 115
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Re: "Diamond engine"
Old31 see here for a good explanation: https://www.fordbarn.com/forum/showthread.php?t=186833
Ned
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Retired civil engineer. Winters in Phoenix, summers in Ipswich, Mass. and North Dakota. '29 closed cab pickup- Excellent AZ truck. '29 roadster- Owned for 21 years but now sold. '28 CC pickup- My first car in Andover, MA back in '62- '63. |
01-14-2021, 05:21 PM | #13 |
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Join Date: Dec 2019
Posts: 1,196
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Re: "Diamond engine"
Got a '36 and 2 '37 B's .They have the latest revision done during production.Some,but not all have hardened exhaust valve seats. The diamond foundry mark has never been identified. Anything else is speculation.
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01-14-2021, 06:33 PM | #14 |
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Join Date: May 2010
Location: Camarillo, CA and Pine Grove, CA
Posts: 2,832
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Re: "Diamond engine"
I have a Diamond A engine. Were there any post production upgrades to them?
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
01-15-2021, 02:47 AM | #15 |
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Join Date: May 2010
Location: Nelson. New Zealand
Posts: 2,009
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Re: "Diamond engine"
neds 29 Yes i helped arrange the freight, also 5 of us organized the national tour,with others in each town, the touring group came to my place for bbq evening , etc , we know the touring group fairly well ,on the tour we had a disused horse race track for our speed event , thats when we learnt about Mitchell overdrives ??? enough said , we visit with Sammy, Ron, Joel, Dennis, & Dwayne, when ever over , you don,t find better folk ,
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01-15-2021, 11:04 AM | #16 | |
Senior Member
Join Date: Nov 2013
Location: Ahwatukee, AZ
Posts: 115
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Re: "Diamond engine"
Quote:
__________________
Retired civil engineer. Winters in Phoenix, summers in Ipswich, Mass. and North Dakota. '29 closed cab pickup- Excellent AZ truck. '29 roadster- Owned for 21 years but now sold. '28 CC pickup- My first car in Andover, MA back in '62- '63. |
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01-16-2021, 10:43 AM | #17 |
Senior Member
Join Date: Jun 2010
Posts: 640
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Re: "Diamond engine"
Does the 'diamond block' have the provision to mount the '32 & up fuel pump ?
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01-16-2021, 10:50 AM | #18 | |
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Join Date: Jun 2010
Location: 34.22 N 118.36 W
Posts: 1,057
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Re: "Diamond engine"
Quote:
J
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01-16-2021, 12:37 PM | #19 |
Senior Member
Join Date: Apr 2017
Posts: 122
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Re: "Diamond engine"
I have a diamond A engine also. Is there any internal differences between the stock A motor to the diamond A.
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01-16-2021, 12:48 PM | #20 |
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Join Date: Dec 2019
Posts: 1,196
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Re: "Diamond engine"
Its the last design revision a late '31design
Ford made a number of block revisions during production,the late 31 incorporated all of them...difference? No,more like the best. |
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