RQK 4 Door Sedan

Shipping Weight: 3,000 Lbs.; Base Price: $1,095

Production Total: 319, 1940 & 1941 combined

Skylark: 6 Cylinder, 115” Wheelbase:

Bore & Stroke: 3-1/2" x 4-1/4"

Engine Displacement: 245.3 Cu. In.

Compresssion Ratio: 5.75 to 1

Taxable Horsepower: 29.40

Horsepower: 101 @ 3,600 RPM

First Serial Number: R-100,590

1941 HUPMOBILE

Tune Up Specifications

Spark Plug: Gap .028;

Point Gap: .020

Distributor Cam Angle: 35

Ignition Timing: 27-1/2 degrees BTDC Mark on flywheel

Firing Order: 1-5-3-6-2-4

Tappet Clearance, Hot: Intake .010, Exhaust .013

Battery Terminal Ground: Positive

Piston & Ring Data-All Series

Piston Removal: From Below 8 cylinder Models and From Above on 6 Cylinder Models

Pistons should be fitted with a drag fit after being heated in boiling water: this is the equivalent to .002” skirt clearance

Ring and End Caps should be .007” to .015”

Clearance between ring and grove should be .0015” to .002” in the top groove and .001” to .0015” in lower groove.

Pins should be fitted with a thumb push fit in piston.

Rod bearing clearance should be .001” to .0025”

Main Bearing should be fitted with a clearance of .001” to .003”

Crankshaft end thrust is taken on No 2 main bearing on all sixes and on No. 3 on eights. End play should be .004” to .008”.

Wheel Alignment Specifications

Caster:

All models except 822E: 1 to 2 degrees

Models 822E: 1-1/2 to 2-1/2 Degrees

Camber:

Models 518D, 618D, 618G 1-1/2 degrees

Models 822E, 915R and 922E: 1 degree

All other models: 1-1/4 degrees

Toe In: 1/16” All Models

Models 72, 73, 75, 90, & 90A: 2 to 3 degrees

Models 74, 80, 80A, & 85: 4 to 5 degrees

On 1938-1941 models caster is 3 to 4 degrees.

Toe In; 1/8”to 3/16”