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Search: Posts Made By: Jim Brierley
Forum: Model A (1928-31) 07-03-2020, 11:47 AM
Replies: 18
Views: 1,085
Posted By Jim Brierley
Re: Downdraft Carburetor question?

Always start with the stock jet sizes for the carb being installed. Carbs are stupid, the only thing they know is how much air is going thru them, and they add the appropriate amount of fuel to...
Forum: Model A (1928-31) 07-02-2020, 11:38 AM
Replies: 11
Views: 383
Posted By Jim Brierley
Re: Understanding Bolt Torque vs Clamping Force

All this tech-talk makes my head hurt!
Forum: Model A (1928-31) 07-01-2020, 11:44 AM
Replies: 3
Views: 250
Posted By Jim Brierley
Re: G28T center cam bearing oiling?

In this case too much oil is better than not enough, although there must have been some oil to that brg. from the factory. There doesn't happen to be holes in the block above the brg. that would...
Forum: Model A (1928-31) 07-01-2020, 11:40 AM
Replies: 18
Views: 1,316
Posted By Jim Brierley
Re: Factory Balancing of Rotating Assembly

All very interesting! Thanks Brad and Joe!
Forum: Model A (1928-31) 06-30-2020, 12:32 PM
Replies: 3
Views: 279
Posted By Jim Brierley
Re: Brake identification

Any 1940-48 drum will work for you. They may not have the same outside shape, but will directly interchange. You should have a tin gizmo to capture any grease slung off the wheel brgs. and keep it...
Forum: Model A (1928-31) 06-30-2020, 12:07 PM
Replies: 10
Views: 424
Posted By Jim Brierley
Re: Rear Wheel Horsepower & Torque

Years ago I put my wide-bed on an electric dyno. On an electric dyno, you can let the dyno drive the wheels. At the time I was running a 2-port Riley conversion on a B block, stock B cam, single...
Forum: Model A (1928-31) 06-30-2020, 11:53 AM
Replies: 3
Views: 250
Posted By Jim Brierley
Re: G28T center cam bearing oiling?

I've never done a G-28, but have pressurized many B blocks. I didn't realize the pump didn't exhaust like on a B. A small amount of oil will go thru the upper bearing of the pump, maybe enough? Is...
Forum: Model A (1928-31) 06-29-2020, 11:50 AM
Replies: 10
Views: 432
Posted By Jim Brierley
Re: Black gummy sludge in intake ports

I just started using MMO, after a valve stuck open on my old tractor, and let a push-rod pop out of place. Now it runs good until it get hot, about 1 hours use, then I have to open the main jet...
Forum: Model A (1928-31) 06-28-2020, 11:39 AM
Replies: 18
Views: 1,316
Posted By Jim Brierley
Re: Factory Balancing of Rotating Assembly

Henry never consulted with me on this matter, but I Imagine rods and pistons were weighed and sorted in groups, this would save assembly time. 4 cyl. engines do not require the entire assembly to be...
Forum: Model A (1928-31) 06-28-2020, 11:33 AM
Replies: 12
Views: 770
Posted By Jim Brierley
Re: Crank grinding

I mis-wrote, they ran with 3/8" added stroke, 3/16" per side. Pete's tudor really ran strong! The secret to long crank life is to have large radii at the journals.
Forum: Model A (1928-31) 06-28-2020, 11:28 AM
Replies: 10
Views: 432
Posted By Jim Brierley
Re: Black gummy sludge in intake ports

They will probably look the same. The likely cause is just from lack of running time, i.e. too many short trips so the engine not getting warmed up enough. I would clean the ports as well as you...
Forum: Model A (1928-31) 06-27-2020, 12:38 PM
Replies: 12
Views: 770
Posted By Jim Brierley
Re: Crank grinding

Many Model B's were raced back in the day with a 4.062" (+3/16") bore and a 4 3/8" crank (3/16" added stroke) for 239 CID, same as a 38-48 V8. In case you are wondering, such a banger, with an OHV...
Forum: Model A (1928-31) 06-24-2020, 11:12 AM
Replies: 2
Views: 407
Posted By Jim Brierley
Forum: Model A (1928-31) 06-24-2020, 11:11 AM
Replies: 10
Views: 1,119
Posted By Jim Brierley
Re: GM Clutch Modification

I've used the SVO clutch. It, and the Ranger that was the last one I bought, may have (?) the same bolt pattern as the early V8, but they have a dowel pin between each pair of bolts. If the pattern...
Forum: Model A (1928-31) 06-24-2020, 11:06 AM
Replies: 18
Views: 1,085
Posted By Jim Brierley
Re: Downdraft Carburetor question?

Shut the valve off about 100' before coming to a stop.
Forum: Model A (1928-31) 06-23-2020, 10:53 AM
Replies: 18
Views: 1,085
Posted By Jim Brierley
Re: Downdraft Carburetor question?

Newer cars had a fuel return line so that when the engine was shut off, the fuel pressure in the line was bled off and returned to the tank. This prevented the condition you describe. The Ford 300...
Forum: Model A (1928-31) 06-23-2020, 10:42 AM
Replies: 10
Views: 1,119
Posted By Jim Brierley
Re: GM Clutch Modification

The invoice from Clutch Masters says "Part No. 07017D" and says FORD DIAPH. That may be their own number, not sure. There is no separate number for the disc, and that is probably a combination of...
Forum: Model A (1928-31) 06-19-2020, 10:52 AM
Replies: 13
Views: 747
Posted By Jim Brierley
Re: Ring/Pinion Question

I've used an un-matched 4.11 gear set. There was a slight noise at about 45 MPH otherwise they were very good.
Forum: Model A (1928-31) 06-17-2020, 12:05 PM
Replies: 11
Views: 603
Posted By Jim Brierley
Re: starter update

Beater, I sent you a PM
Forum: Model A (1928-31) 06-16-2020, 12:32 PM
Replies: 20
Views: 1,209
Posted By Jim Brierley
Re: Need Photo of Crank Counterweight

Most guys don't use bolts, just weld them on. Vee the weights and crank at the weld point to get a strong weld. Welding usually doesn't cause the crank to warp, as the weights are welded far away...
Forum: Model A (1928-31) 06-15-2020, 10:50 AM
Replies: 16
Views: 812
Posted By Jim Brierley
Re: Rusted block, repairable?

What size is your bore now? It will likely clean up with another .030", and not need sleeving. If there is no sleeve, it won't cause any problems.
Forum: Model A (1928-31) 06-15-2020, 10:41 AM
Replies: 13
Views: 463
Posted By Jim Brierley
Re: Clutch Stuck Disengaged

If the lining has stuck to the flywheel surface, it would be engaged all the time, his is not engaged. Never seen that before. Are you sure the problem isn't elsewhere? Broken axle or ???
Forum: Model A (1928-31) 06-14-2020, 07:26 PM
Replies: 8
Views: 409
Posted By Jim Brierley
Re: 31 model A rear end question

I'm a firm believer in modern oils which are much improved over Model A era oils. Just because A's came with certain oils doesn't mean that is now the best for them. Additives have improved oils...
Forum: Model A (1928-31) 06-14-2020, 11:59 AM
Replies: 8
Views: 409
Posted By Jim Brierley
Re: 31 model A rear end question

I would use modern oil, 90 weight.
Forum: Model A (1928-31) 06-14-2020, 11:57 AM
Replies: 16
Views: 812
Posted By Jim Brierley
Re: Rusted block, repairable?

A/B blocks can be safely bored to 4" (.125" oversize), many were bored to 4.062" by racers back in the day. Your rust indicates water entered from somewhere, maybe just the head gasket?
Showing results 1 to 25 of 500

 
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