Decode flathead casting
- Thread starter gt427
- Start date
Bruce Lancaster
Member Emeritus
Shapes of water holes near center of decks, plus presence or absence of this stuff will ID a prewar 24:
2 Vertical ridges on each side of block leading to freeze plugs on pan rails
manifold gasket shaped cast pad on top of block where manifold goes
Small round boss near oil sender holes at rear of block
2 Vertical ridges on each side of block leading to freeze plugs on pan rails
manifold gasket shaped cast pad on top of block where manifold goes
Small round boss near oil sender holes at rear of block
papanomad
Senior Member
what does small round boss mean?
Bruce Lancaster
Member Emeritus
No proof, but I believe that boss came along in '42-3 for military carriers and heavy trucks using a cooler or full flow filter. Many of our '42 "raised deck" engines are actually WWII survivors.
rotorwrench
Well-known member
gt427
Do you just have an engine or might you also have the car. We can answer most questions but photos or characteristic information will get quicker answers. Welcome into the barn.
Do you just have an engine or might you also have the car. We can answer most questions but photos or characteristic information will get quicker answers. Welcome into the barn.
Bruce Lancaster
Member Emeritus
On that boss...if you carefully scrutinize the pictures, you will see that the engine used for many of the photos is a '42 type block with all 3 oil bosses open...it is a wartime motor, probably from a Canadian carrier or truck!
Bruce, Every Universal Carrier produced by Ford of Canada had an oil cooler and the third hole in the block. The first one rolled off the line on 8th Feb 1941.
Prior to that British built carriers (many of which were lost at Dunkirk) had oil coolers. The British supplied specialist parts (which included the cooler bypass valves and oil coolers) for the first 1200 approx Canadian carriers.
Basically the third hole in these blocks I am guessing was a British idea, because they were using oil coolers with Ford V8s of British origin in 1938. New Zealand received 6 British Bren carriers in 1938.
Ford USA supplied GAE-6004 US engines and GAE-A-6004US engines in this 3 hole style to Britain for installation in carriers early in the war.
Maybe someone has info on the build specs of these two engines? I would love some details. They both had 14mm plugs and probably std. American electrics.
Prior to that British built carriers (many of which were lost at Dunkirk) had oil coolers. The British supplied specialist parts (which included the cooler bypass valves and oil coolers) for the first 1200 approx Canadian carriers.
Basically the third hole in these blocks I am guessing was a British idea, because they were using oil coolers with Ford V8s of British origin in 1938. New Zealand received 6 British Bren carriers in 1938.
Ford USA supplied GAE-6004 US engines and GAE-A-6004US engines in this 3 hole style to Britain for installation in carriers early in the war.
Maybe someone has info on the build specs of these two engines? I would love some details. They both had 14mm plugs and probably std. American electrics.
rotorwrench
Well-known member
The universal carriers ran warmer due to the way the cooling system was designed so they used oil coolers from early on to augment cooling duties so they could operate in harsh environments of the tropics and North African desert. A lot of the Canadian production used them in CMP trucks too. Many of the vehicles produced by Ford USA had 4-cylinder engines or 6-cylinder engines such s in GPW jeep type vehicles and the G8T trucks. Ford USA still manufactured V8 engines during the war but there is not a lot of information about how many or for what vehicles. It's known they manufactured fordor sedans and several types of trucks for fire engines and other purposes too but not a lot of info there either. Ford Canada made a lot more V8s than Ford USA and in more than one configuration too. Ford USA converted to build tanks, B-24 aircraft, and Pratt & Whitney radial aircraft engines as well as GPW jeeps and G8T trucks. Ford USAs big V8 GAA tank engine was a work of art.
The little undrilled boss in the 59 series engines was a carry over from war time specifications. It makes it easy to add a cooler or a partial flow oil filtration system if a person wants one. On the blocks that don't have the boss, you have to be more careful about drilling in that location but it can still be done.
The little undrilled boss in the 59 series engines was a carry over from war time specifications. It makes it easy to add a cooler or a partial flow oil filtration system if a person wants one. On the blocks that don't have the boss, you have to be more careful about drilling in that location but it can still be done.