Help ID ?Engine spec

[flyxpl]

Looking for specs on these engines . Would like to know weight,HP and RPM .
ONE LOT EST. TO CONSIST OF: 2 GAS ENGINES 2 CYLINDER AIR COOLED, 4 CYCLE OVERHEAD VALVE, 42 CU IN DISPLACEMENT.

 

[Stonepicker1]

They should be 10HP gas engines. We had them on our 5KW generators back in the 80's.

 

[Stonepicker1]

Model: 2A042-3 (III)
2 Cylinder - 42 Cubic Inch - 10 Hp
Made by Teledyne WF1

 

[Stonepicker1]

10 H.P. @ 3,600 RPM(USG Rating) 42 Cubic Inches

TM: 9-2805-258-14
LO: 9-2805-258-12
ENGINE, GASOLINE, 10 HP,
MILITARY STANDARD MODELS
MODEL 2A042-2, NSN 2805-00-952-3927)
MODEL 2A042-3, NSN 2805-00-872-5971

 

[Stonepicker1]

From TM: 9-2805-258-14​

a. G e n e r a l .
Engine model . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A 0 4 2 - 2 , a n d - 3

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 cycle gasoline powered air cooled
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . 2 (horizontally opposed)

Horse power rating . . . . . . . . . . . . . . . . . . . . . . . 10 at 3600 r.p.m.

Fuel pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diaphragm 3.0-4.5 psi outlet pressure

Air cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dry

Spark plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shielded

Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .028-.033 in. (.071-.083 cm)

Magneto contacts
Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .016-.020 in. (.040-.050 cm)

Valve tappet clearance cold . . . . . . . . . . . . . . . . .007-.009 in. (.017-.027 cm)
(Intake and exhaust)

Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Centrifugal

Oil capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 quarts (21/2qts with oil filter change)

Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 volts alternating current

Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 volts direct current (dc)

Regulator-Rectifier . . . . . . . . . . . . . . . . . . . . . . . . 28.5 ±.5 volts at 1.5 amps (dc)

b. Dimensions and Weight Models 2A042-2 and -3.
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 in. (48.26cm)

Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 in. (60.96cm)

Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.10 in. (56.13 cm)

Weight (Dry) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 1b (93.07kg)

​

​

​

​

​

 

[flyxpl]

Thanks guys . I pick them up monday . I was hoping for more hp . At least the price was right . When googled I would get the 32 cubic inch model , but not the 42 cubic inch . Just saw the weight, they must be well built .

 

[Keith_J]

10 Hp out of 42 cubic inches? Yes, that is quite conservative. You should see at least 15 Hp at 3600 RPM in stock condition. Advance timing 3-5 degrees and run premium gasoline? 20+. Just don't think you can go much faster than 3600 RPM.

 

[flyxpl]

I was hoping for around 20hp. I do not need more rpm .I was thinking of making a mud motor for my duck boat .The mud motor engines usually run right at 3600 rpm .So the props that are out there are designed for 3600 . Most of the larger mud motors are in the 20hp range .Neighbor was wanting the other engine for a log splitter .
Thanks for your promising opinion .

 

[derf]

Those would make excellent mud boat motors. Your neighbor will probably be able to split giant Redwoods.