Forum: Model A (1928-31)
03-29-2020, 10:01 AM
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Replies: 34
Views: 6,975
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Forum: Model A (1928-31)
03-29-2020, 09:53 AM
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Replies: 6
Views: 2,898
Re: Mutant B Carb
Allis Chalmers used these carburetors on their early model WC tractors. They had a slightly smaller venturi and did not have the GAV or high speed enrichment circuits that the Ford B used.
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Forum: Model A (1928-31)
02-24-2013, 01:46 AM
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Replies: 9
Views: 2,172
Re: Carburetor icing?
Upside down?? Not this boy!! Gravity is your friend with an A! (gotta keep oil in the dipper tray somehow!!) Mr. Pietenpol wrote that the A carb was fine in the air as long as you kept it warm, but...
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Forum: Model A (1928-31)
02-24-2013, 12:30 AM
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Replies: 9
Views: 2,172
Re: Carburetor icing?
Kind of off topic, but maybe someone here will find it interesting: If the carburetor and intake manifold is separated from the exhaust manifold by much distance for some reason (like a Pietenpol...
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Forum: Model A (1928-31)
02-24-2013, 12:00 AM
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Replies: 9
Views: 2,030
Re: Need combustion chamber volume's
I thought about posting the mathematical answer that Eystein posted, but took the lazy way out after going through the math. The only thing I would like to add to that post is that the head gasket...
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Forum: Model A (1928-31)
02-23-2013, 06:02 PM
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Replies: 9
Views: 2,030
Re: Need combustion chamber volume's
A lot depends on how much your pistons hang out above the block, as well as the bore (oversize) of your block, but a combustion chamber volume of about 150cc's should get you close to 6:1.
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Forum: Model A (1928-31)
02-05-2013, 03:48 PM
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Replies: 2
Views: 1,123
Re: l pump modification
Vertically. Making the intake wider will reduce flow due to increased leakage around the gears.
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Forum: Model A (1928-31)
01-24-2013, 10:07 AM
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Replies: 2
Views: 1,920
Re: Timing gear backlash
I'm working on assembling an engine now, and I just checked mine from the side with a dial indicator as Patrick suggested, although I checked it every 90 degrees at the crankshaft for two turns. ...
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Forum: Model-A
11-07-2012, 11:28 AM
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Replies: 3
Views: 1,270
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Forum: Model A (1928-31)
03-20-2012, 03:24 PM
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Replies: 19
Views: 8,848
Re: Model B adjustable Lifters ?
I would be interested in a set of non adjustable B lifters if anyone has some available. Please send me a PM or call me at Five Four Zero-Three Two Five-One Four Zero Six if you can help.
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Forum: Model A (1928-31)
02-10-2012, 09:05 AM
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Replies: 23
Views: 9,177
Re: Modern Valve Guides
Thanks! The only spec I could find from a Ford source was in the Model T service manual which specified something ridiculously low like 24-28 lbs when compressed to "valve closed" height. Even...
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Forum: Model A (1928-31)
02-09-2012, 08:48 PM
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Replies: 23
Views: 9,177
Re: Modern Valve Guides
Ron: I'm sure that performance and reliability would be affected by less spring tension. I've seen lots of numbers thrown around for seat pressure, but I haven't seen or heard anything about what...
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Forum: Model-A
01-31-2012, 07:51 PM
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Replies: 3
Views: 1,270
Re: B-6500 lifters
Bump! Still looking... (54o) 325-14o6 in case you like phones better than 'puters.
Brett
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Forum: Model-A
01-13-2012, 09:16 AM
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Replies: 3
Views: 1,270
B-6500 lifters
Looking for a set of Model B Valve Lifters, Ford P/N B-6500. I would prefer NOS or excellent used condition. Let me know what you have.
Brett Phillips
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Forum: Model A (1928-31)
05-11-2011, 05:40 PM
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Replies: 23
Views: 4,760
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Forum: Model A (1928-31)
05-11-2011, 02:36 PM
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Replies: 23
Views: 4,760
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Forum: Model A (1928-31)
05-11-2011, 12:15 PM
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Replies: 23
Views: 4,760
Re: Crankshafts: How straight is straight enough?
I'm beginning to think that poor crankshaft grinding jobs are the real reason that poured babbitt bearings have gotten a bad name in recent years... This engine is going to end up on the custom side...
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Forum: Model A (1928-31)
05-11-2011, 07:57 AM
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Replies: 23
Views: 4,760
Re: Crankshafts: How straight is straight enough?
Brent:
I haven't asked them about it yet, as I wanted to have a spec in hand before calling them. I am also doubtful that it can be straightened to run correctly. It looks like I'm probably going...
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Forum: Model A (1928-31)
05-11-2011, 07:25 AM
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Replies: 23
Views: 4,760
Re: Crankshafts: How straight is straight enough?
Kevin:
Thanks for your help, I'll have to get a copy of that book! I was so distraught over the center main "jumping rope" that I didn't check the flange runout. At this point, it's kind of moot,...
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Forum: Model A (1928-31)
05-10-2011, 08:09 PM
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Replies: 23
Views: 4,760
Crankshafts: How straight is straight enough?
I've been working on getting parts together to build up an A engine, and I have a crank that has been ground .010 undersize on all journals, and a block with fresh babbitt to match. Things seemed a...
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