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#1
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My truck when found, was converted into a vehicle recovery truck, and worked it's civilian life as a tow truck in Walcha, NSW, Australia. It had extensive steel plate added to the rear for towing cars by the front axel, it has the extensions added to widen front wheelbase. I assumed that the duel wheels and extensions to the front would have been added when the tow truck conversion took place? Or did they have these wheels in military service? Really appreciate the photo! |
#2
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Just a quick update on my engine!
I've measured the main crankshaft bearings(2.4993") and big end journal bearings(2.138"). According to "Ford Flathead v-8 Builders Handbook 1932-1953" this puts the engine around the 1946-48 I'd say as the Bell housing is still the old style..... Any thoughts from the Flathead guru's? |
#3
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Hi David,
Sure sounds like a '46-'48 engine based on the journal sizes but having said that in the course of 75 years the engine could have had a crank replaced. My '46 engine pictured had 8BA crank and rods in it along with the 8BA valves and guides. The divers helmet distributor still seems an anomaly on a later block. Again, who knows what gets swapped about after 75 years. Ditto the alloy manifold. That number you quoted "363:1 K" is that in raised lettering in either of the positions that "C69A" is shown on my engine block? Anecdotally, I have heard there were some odd block codes for things such as stationary engines but have never seen any documentation on such. Here's hoping you get a confirmation of what year the engine is. Cheers,
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F15-A 1942 Battery Staff Jacques Reed Last edited by Jacques Reed; 06-08-17 at 22:35. |
#4
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Hi David,
Just remembered- if there are no recognized casting marks on the engine, the water jacket shape will give you a good approximation of the year of the engine. I assume you have the heads off if you have measured the bore. I refer you to Vanpelt sales website. If there are large triangular shaped holes between the centre cylinder bores it is a 1938 engine. If the top opening is triangular and the bottom two holes are trapezoidal it is a 1939-42 engine. If the top hole is triangular and the bottom two are large round holes it is a 1945-48 engine. This should narrow it down for you. See attached photo of two different types of head gaskets showing the openings described. Cheers,
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F15-A 1942 Battery Staff Jacques Reed Last edited by Jacques Reed; 07-08-17 at 00:05. |
#5
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Hi David,
Attached photo shows the water jacket openings I mentioned in previous post. My '46 engines have the two large round bottom openings. Cheers,
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F15-A 1942 Battery Staff Jacques Reed |
#6
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Looking at a picture of the mounting holes on one, they would not line up with the front timing gear cover as shown in one of the previous photos. Unfortunately I haven't got one on hand to compare so am relying on photos only. I believe it is possible to mount a later model crab distributor on an early model engine using an adaptor such as one sold by Mac's but not the other way around. Perhaps another flathead Ford person can confirm this. Cheers,
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F15-A 1942 Battery Staff Jacques Reed |
#7
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That is my understanding, Jacques
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Howard Holgate F15 #12 F15A #13 (stretched) F60S #13 C15A #13 Wireless (incomplete) |
#8
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It (ie using a helmet dizzie) is if you use the earlier camshaft, but why would you? That would seem to be a backward step to me. But I suppose if that is what the assembler had to hand.
I went the other way, from a helmet to a crab dizzie with no problems: I don't remember having to use an adapter or change the timing gear cover, as I think the bolt holes lined up (but it is 20 + years ago now!) Mike |
#9
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Hi Mike,
Attached is the 3 bolt divers helmet distributor to a crab distributor adaptor plate I mentioned. Looking at it, and the description, a cam button spacer is needed for some stock shallow cam noses. So perhaps the other way to use an earlier distributor on a post war engine and vice versa is to also change the timing gear cover. Again, I am not sure if this is possible so perhaps another person can enlighten us. I agree, I don't know why one would want to use a divers helmet distributor as opposed to a crab distributor on a later engine but nothing surprises me when it comes to the old engines! So to get back to David's original question, once he inspects the water jacket openings in the block that will be the final arbiter of what approximate year his engine was manufactured. After that it will be easy to decide what, if any, items have been changed from original. Cheers, http://www.speedwaymotors.com/Flathe...olt,25076.html
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F15-A 1942 Battery Staff Jacques Reed Last edited by Jacques Reed; 08-08-17 at 01:21. |
#10
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The problem with most American sources (Books or Websites) is that they refuse to acknowledge that the Ford V8 continued to be produced throughout the war years. Production did stop in the US in favour of the 6cyl, but the V8 continued to be produced (and evolve) in Canada. Most of the "New" features that the Americans received in '46 models were the results of Canadian development and production. Don't believe the Yank "Fake News"! Your crank dimensions are entirely consistant with the with the 1939-45 239ci 99A that is the correct engine for the Ford Blitz. Any progress on finding a stamped engine number, not a casting number? |
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