1939 HUPMOBILE
Seires 922E – Senior 6 Cylinder, 122 Wheelbase:
Shipping Weight: 3,400 Lbs.; Base Price: $995
4 Door Custom Touring Sedan
Shipping Weight: 3,440 Lbs.; Base Price: $1,090
Production Total: 800
4 Door DeLuxe Touring Sedan
Shipping Weight: 4,085 Lbs.; Base Price: $1,145
Custom 4 Touring Door Sedan
Shipping Weight: 4,215 Lbs.; Base Price: $1,245
Production Total: 200
Custom 4 Door Sedan
Shipping Weight: 3,000 Lbs.; Base Price: $1,145
Production Total: 35 (Handbuilt Prototypes)
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: Not Available
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: E-372001
Bore & Stroke: 3-3/16" x 4-3/4"
Engine Displacement: 303.2 Cu. In.
Compresssion Ratio: 5.80 to 1
Taxable Horsepower: 32.51
Horsepower: 120 @ 3,500 RPM
First Serial Number: H-30,001
1939 HUPMOBILE
Tune Up Specifications – Model 915R (Skylark)
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
Tune Up Specifications – Model 922E
Spark Plug: Gap .028;
Point Gap: .020
Distributor Cam Angle: 40 degrees
Ignition Timing: TDC Mark on flywheel
Firing Order: 1-5-3-6-2-4
Tappet Clearance, Hot: Intake .006, Exhaust .013
Battery Terminal Ground: Positive
Tune Up Specifications – Model 925H
Spark Plug: Gap .028;
Point Gap: .0.17
Distributor Cam Angle: 27-1/2 degrees
Ignition Timing: 25/32” BTDC Mark on flywheel
Firing Order: 1-4-7-3-8-5-2-6
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”
Copyright 2008, Custom Solutions & Services.