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Search: Posts Made By: Bob Bidonde
Forum: Model A (1928-31) Today, 09:14 AM
Replies: 10
Views: 422
Posted By Bob Bidonde
Re: Model b motor

I cannot imagine how the crankshaft is contacting the oil pan. Also, it something is scraping the oil pan, my guess is that it would make a horrible squeal, not a knock. I think Jim Brierley's notion...
Forum: Model A (1928-31) Today, 09:02 AM
Replies: 4
Views: 142
Posted By Bob Bidonde
Re: 1931 model a running rough.

Go for the easy things first. Replace the condenser and make sure the points are clean. Next replace the modern wires with the OEM bare metal leads which are far superior conductors than your modern...
Forum: Model A (1928-31) Today, 08:55 AM
Replies: 10
Views: 289
Posted By Bob Bidonde
Re: Speedometer error

Go to a school speed zone with a radar speed sign and check your speed. GPS has a margin of error.
Forum: Model A (1928-31) Today, 08:44 AM
Replies: 2
Views: 127
Posted By Bob Bidonde
Re: Briggs Body ID Plaate

Gwyn Machauk engraved the body tag on my 190A, and she did a really nice job of it. Her email is larry-gwyn@consolidated.net (https://mail.aol.com/webmail-std/en-us/suite#)
Forum: Model A (1928-31) 07-07-2020, 08:49 AM
Replies: 19
Views: 822
Posted By Bob Bidonde
Re: Bending Overflow Tube

The relationship is Pressure x Volume / Temperature. The orifice reduces the volume lost by increasing the pressure and the temperature.
Forum: Model A (1928-31) 07-06-2020, 07:29 AM
Replies: 19
Views: 822
Posted By Bob Bidonde
Re: Bending Overflow Tube

Leave the overflow tube as it is and do this instead. It is an orifice made from a stainless steel 1/4" diameter bolt. The hole drilled through the bolt is 0.125" diameter. Insert the bolt into the...
Forum: Model A (1928-31) 07-03-2020, 07:49 AM
Replies: 11
Views: 421
Posted By Bob Bidonde
Re: Understanding Bolt Torque vs Clamping Force

Typically, joints are designed with bolts torqued to 75% of their yield strength to reduce the alternating stress range.
Forum: Model A (1928-31) 07-03-2020, 07:43 AM
Replies: 8
Views: 555
Posted By Bob Bidonde
Re: Piston size

Measure the cylinder,s diameter about one inch below the deck. 3.875" + 0.040" = 3.92" is a ballpark estimate of the cylinder's diameter for an 0.040" oversize.
Forum: Model A (1928-31) 07-02-2020, 08:08 AM
Replies: 18
Views: 1,354
Posted By Bob Bidonde
Re: Factory Balancing of Rotating Assembly

I am in the process of building a Power Point presentation for my local Model "A" club that highlights the causes of engine vibrations, and the steps taken to make vibration feel better. In the...
Forum: Model A (1928-31) 07-02-2020, 07:53 AM
Replies: 11
Views: 421
Posted By Bob Bidonde
Understanding Bolt Torque vs Clamping Force

When the Model "A" was produced, there were no torque wrenches in use at the factory. The first car company to use torque wrenches was Chrysler in the mid 1930s. The torque wrench became available on...
Forum: Model A (1928-31) 06-30-2020, 09:25 AM
Replies: 18
Views: 1,354
Posted By Bob Bidonde
Re: Factory Balancing of Rotating Assembly

Having studied all of the materials posted above, and having done some research of factory films on YouTube, I conclude that the factory balanced the rotating assembly of the Model A's engine as...
Forum: Model A (1928-31) 06-29-2020, 01:18 PM
Replies: 11
Views: 636
Posted By Bob Bidonde
Re: Noisy u-jont installed by novice ,30 coupe

I notice that Bratton's and Synder's do not have the modern Spicer type u-joint. Snyder's catalog indicates the Spicer u-joint has been temporarily discontinued. The alternative is to get lucky and...
Forum: Model A (1928-31) 06-29-2020, 01:12 PM
Replies: 11
Views: 636
Posted By Bob Bidonde
Re: Noisy u-jont installed by novice ,30 coupe

I notice that Bratton's and Synder's do not have the modern Spicer type u-joint. Snyder's catalog indicates the Spicer u-joint has been discontinued. The alternative is to get lucky and find a good...
Forum: Model A (1928-31) 06-29-2020, 12:56 PM
Replies: 10
Views: 440
Posted By Bob Bidonde
Rear Wheel Horsepower & Torque

Theoretically, the power loss in a drive-line is 15 to 18% for a modern car. Lets say our old school technology Model "A" has a drive-line power consumption of 20%. Then the power at the rear wheels...
Forum: Model A (1928-31) 06-29-2020, 09:36 AM
Replies: 18
Views: 719
Posted By Bob Bidonde
Re: Manifold/Muffler Joint

The design of the manifold to muffler assembly joint allows for some movement, but not much. It is a semi-ball type joint. The muffler assembly develops a lever bending action on the joint, so it...
Forum: Model A (1928-31) 06-29-2020, 09:18 AM
Replies: 18
Views: 1,354
Posted By Bob Bidonde
Re: Factory Balancing of Rotating Assembly

Brad, thank you for sharing the balancing text. So what I have learned so far is during Model "A" production, the individual parts of the engine's rotating assembly were balanced, and not balanced as...
Forum: Model A (1928-31) 06-29-2020, 08:56 AM
Replies: 10
Views: 460
Posted By Bob Bidonde
Re: Starter Switch Alignment

I compared a reproduction switch to 2 NOS original switches that I have. The contact strip in an original starter switch is a stiff flat spring, unlike the soft copper strip in the reproduction...
Forum: Model A (1928-31) 06-29-2020, 08:42 AM
Replies: 11
Views: 636
Posted By Bob Bidonde
Re: Noisy u-jont installed by novice ,30 coupe

The original u-joint in the Model "A" is not rebuildable, and if you have one in your car, it is likely wornout! The u-joint of choice is the one in the 2nd photo, and it is rebuildable. The 3rd...
Forum: Model-A 06-27-2020, 10:20 AM
Replies: 0
Views: 93
Posted By Bob Bidonde
Bud Flower Vase

For sale is one original bud vase with its mounting bracket. The vase is 7.5" tall and 2" wide at its top, and it is made of green vaseline glass. The vase has a small chip in its bottom tip that...
Forum: Model A (1928-31) 06-27-2020, 09:56 AM
Replies: 10
Views: 445
Posted By Bob Bidonde
Re: luggage rack

These are the brackets I have on my 190A:
Forum: Model A (1928-31) 06-27-2020, 09:47 AM
Replies: 7
Views: 462
Posted By Bob Bidonde
Re: steering adjustment

You can buy one of these to make the sector axial play adjustment in the car.


...
Forum: Model A (1928-31) 06-27-2020, 09:30 AM
Replies: 21
Views: 862
Posted By Bob Bidonde
Re: Generator voltage high ?

Ford rated the stock 2-pole generator at 7.9V maximum.
Forum: Model A (1928-31) 06-26-2020, 12:34 PM
Replies: 18
Views: 1,354
Posted By Bob Bidonde
Re: Factory Balancing of Rotating Assembly

Brent, Duke,
Thanks for the info.
Forum: Model A (1928-31) 06-26-2020, 12:32 PM
Replies: 15
Views: 876
Posted By Bob Bidonde
Re: Your best method for drilling out rivets?

Center punch the rivet head and drill just deep enough to pop off the rivet's head. Then punch out the shank. This protects the hole from being made out of round / oversize.
Forum: Model A (1928-31) 06-25-2020, 11:52 AM
Replies: 18
Views: 1,354
Posted By Bob Bidonde
Factory Balancing of Rotating Assembly

I need some help to Ford historians to determine how the factory balanced the engine's rotating assembly during Model "A" production. What I guess is:


>Pistons & connecting rods were...
Showing results 1 to 25 of 500

 
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