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October, 2007

2100 Walnut Street

Kansas City, MO 64108

Local Chapter of MAFCA and MARC

NEWS

‘A’

LETTER

Heart of America Model A Ford Club

“

Certificate of M erit” 2006

“

A ward of

Continuing Excellence” 2006

MODEL ‘A’ TEST

As many of you know, I have written several articles regarding technical aspects of the Model A. In this spirit, I pre-

sent to you the following opportunity for you to test your knowledge regarding the Model A. Under each question,

circle the number you feel is the right answer to the question. Sign the test and send it to me. I’ll grade the test and

awards will be given at this years Christmas party. The award for the highest score will be a free trip and a Model A.

Don’t delay. Good luck. Chris Launer, President

What is the weight of the Model A engine, complete with clutch and

transmission?

1. 350 pounds

2. 489 pounds

3. 475 pounds

What is the crank case capacity of the Model A?

1. Four and one half quarts

2. Five quarts

3. It depends on what weight oil you are using

What is the weight of a stock Model A flywheel?

1. The weight depended on the model of the car

2. The weight often varied due to each manufacturer of the

flywheel

3. The weight varied depending on if the flywheel was stati-

cally or dynamically balanced

4. The weight was 63 pounds, 4 ounces

What is the piston displacement of the Model A engine?

1. The displacement varied on the date the engine was pro-

duced.

2. The displacement was 200.5 inches.

3. The displacement was 200.5 inches for the 28-29 and 200.8 for

the 30-31

What is the brake horsepower of the Model A engine?

1. 40hp at 2,200 RPM

2. This is a stupid question because brakes don’t have horse

power

3. 42.5hp at 2,400 RPM

Is a two-blade fan or a four-blade fan more efficient on the Model A?

1. Absolutely the four-blade is more efficient

2. the two blade is more efficient

3. Neither of the above

The stock Model A fan blade delivers how much cubic feet of air per

minute?

1. 1,389 cubic feet

2. 650 cubic feet

3. 855 cubic feet

How long is the Model A connecting rod?

1. 7 inches long

2. As long as you own the car

3. 7.5 inches long

4. Who cares

What is the S.A.E. horsepower rating of the Model A Ford?

1. 40 horse power

2. 24.03 horsepower

3. There is no such thing as an S.A.E. rating. This rating is for

oil not horsepower

What is the clearance of the Model A connecting rod bearing?

1. .005 at 2,400 RPM

2. .005 at 800 RP M

3. .005 at any RPM

How wide is the piston pin of the Model A?

1. One inch

2. One and 7/16 inches

3. One and 3/16

The ends of the Model A valves are?

1. Mushroom

2. Flat

3. Convex

4. Concave

The valve tappet clearance of the Model A engine is?

1. .012

2. The clearance depends on a variety of mechanical factors

including the total miles on the engine

3. .015

4. Nobody knows because the original specifications are lost

Is the engine cylinder of the Model A offset?

1. No, this would create a balance problem

2. Yes, the cylinder offset is alternated so the engine balances

3. The cylinder offset is 1/8 inch

What is the valve stem area of the Model A Ford engine?

1. 2.58 at the middle of the valve

2. 2.58 at the mushroom end if there is a mushroom end

3. 2.58 at the concave end of the valve

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