model b engine cm gear

As Carroll Smith wrote; All Failures are Human in Origin.
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Not true, when the wind blows a tree over and snaps off the trunk, no humans are involved w/the failure of the tree trunk.
 
katy said:
Not true, when the wind blows a tree over and snaps off the trunk, no humans are involved w/the failure of the tree trunk.
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Perhaps...but only a human would perceive that occurrence as a failure, thus it is human in origin. :D
 
Dave, To get back to the original question, even though the original gear was fiber, I would put in an aluminum one. Replace the gear on the crankshaft at the same time and consider a dynamic dampening pulley. I have had to replace a fiber gear on the side of the road in the 1960's so I don't like the fiber gears.

Is your crank the later one that has the counter weights?
 
In a Dagenham block the entry hole in the gallery is 3/8" dia and the front exit hole is 1/4" so way smaller flow volume maybe different from a USA block .

John in same place same weather
 
john charlton said:
In a Dagenham block the entry hole in the gallery is 3/8" dia and the front exit hole is 1/4" so way smaller flow volume maybe different from a USA block .

John in same place same weather
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John,

That is good intel, some of us have been talking about restricting down the exit hole to raise the available pressure in the galley.
It would make sense that a 1/4" hole can pass enough oil to supply the dipper tray.

Best, John
 
I read somewhere that the smaller Dagenham engine makes Horsepower at 2600 rpm VS 2800 for the larger USA version.

If so that would explain the smaller front gallery oil hole as less oil volume would be needed to keep dipper tray full of oil.

I can not find the info on the smaller Dagenham engine specs.

Does anyone know at what rpm THE Dagenham engine makes MAX hp?
 
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About restricting the front oil galley hole.

In 1970 Dan Iandola published an article in a hot rod type magazine.

This was for a B block with drilled crankshaft with full oil pressure to rods and mains. Not a "dipper' ENGINE.


It was suggested that oil hole be plugged and drilled to .070 (this number is from my memory only) along with other changes.

In 1976 we used the specs in this article to build a full pressure B block for use with a Miller OHV head.

This project was eventully abandoned due to multiple cracks in this block which had been raced on dirt tracks with an 8.25 Thomas head and 2 97s.

In 1989 I had a totally STOCK B block built which has been in the car since then.
 
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The Dagenham B block is not a smaller bore block it has the regular 3 7/8" bore same as USA. the BF block has the 3" bore . I measured a B block . The Dagenham B block is a different casting from the USA it has a thicker top deck by approx 1/16" and is fairly bullet proof no more prone to cracking than an A block .

John in same place lovely sunny evening .
 
The Dagenham B block is not a smaller bore block it has the regular 3 7/8" bore same as USA. the BF block has the 3" bore . I measured a B block . The Dagenham B block is a different casting from the USA it has a thicker top deck by approx 1/16" and is fairly bullet proof no more prone to cracking than an A block .

John in same place lovely sunny evening .
 
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