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05-25-2012, 12:24 AM | #21 |
Senior Member
Join Date: Nov 2011
Location: B.C. Canada
Posts: 1,746
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Re: Model B '34 Motor?
I have diamond B engines in both my A,s.I prefer them to the A engine for a driver car.While you can install the B cam,carb & head etc on the A & have the same HP as the B, you are still hampered by the A,s small brg size.The larger brgs make for a much stiffer crank Its not very often that a B will take out the center or rear main.Ford still listed rear main caps in the 49 parts book.The B,s had mild pressure to cam & mains.If you have an oil leak at rear of engine,it could also be leaking from gasket between block & FW hsg as it seals the rear cam brg..
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11-30-2023, 03:03 AM | #22 |
Junior Member
Join Date: Apr 2020
Location: tauranga, new zealand
Posts: 3
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Re: Model B '34 Motor?
how can you tell if a Model B crankshaft is an early non balanced one or the later counter balanced crankshaft
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11-30-2023, 03:43 AM | #23 | |
Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,504
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Re: Model B '34 Motor?
Quote:
BTW, someone said earlier in this thread that the B engines were prone to cracking due to thinner castings. They are more likely to crack but I believe it is not due to the thickness of the casting. I believe that because the B engines were fitted with distributor with an automatic advance mechanism which was a terrible design and unreliable, the trouble started there. After a while, they didn't advance properly which meant the engine was running retarded. A retarded engine runs hot and hot engines crack. A B engine with no cracks is a far superior engine to the A effort. I wouldn't spend money rebuilding one without first crack testing it though.
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11-30-2023, 08:23 AM | #24 |
Senior Member
Join Date: May 2010
Location: papillion nebraska
Posts: 406
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Re: Model B '34 Motor?
While a bit off topic, at the in-season Speedway Motors coffee cruises a participant on occasion drives an original 41 ford 4 cyl pickup, I believe by this late date production, the 4 cyl had evolved to the likes of the tractor engine.
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11-30-2023, 09:39 AM | #25 | |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,360
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Re: Model B '34 Motor?
Quote:
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