Tune-Up Specifications

Make Model Point Gap Spark Plug Gap Timing Mark On Spark Occurs Firing Order Int. Valve Clearance Exh. Valve Clearance Comments

Allis Chalmers WC,WD,WD-45,WF .020 .030 FLY TDC 1-2-4-3 .010H .010H For intake & exhaust valve clearance, WD-45 set at .012H

Allis Chalmers U,UC .013 .035 FLY TDC 1-2-4-3 .010H .010H

Allis Chalmers H-3 .020 .025 FLY TDC 1-2-4-3 .010H .016H

Allis Chalmers G .020 .025 FP NOTCH 1-3-4-2 .010H .010H

Allis Chalmers D-19 .022 .025 FP TDC 1-5-3-6-2-4 .015H .020H

Allis Chalmers D-10,D-12,D-17 .022 .025 FLY TDC 1-2-4-3 .013H .013H Spark plug gap for LPG is .020. Int. & Exh Valve clearance for Ser. No. D-10 (3501) D-12 (3001) & Up is .009H and .015H

Allis Chalmers C,CA .020 .030 FLY TDC 1-2-4-3 .010H .012H

Allis Chalmers B,IB,RC .020 .035 FLY TDC 1-2-4-3 .010H .010H

Allis Chalmers A .020 .032 FLY TDC 1-3-4-2 .012H .012H Point gap is for Fairbanks. Set Splitdorf .012-.015

Allis Chalmers D-14,D-15 .022 .025 FLY LINE 1-2-4-3 .009H .015H Point gap is for D-15 only, set D-14 at .020. For spark, LPG set center. For Int. & Exh. Valve clearance, D-14 set at .013H

B.F. Avery V .020 .028 FLY TDC 1-2-4-3 .006H .006H

B.F. Avery A & R .020 .025 FLY TDC 1-2-4-3 .008C .010C Point gap for Magneto set to .015

Case VA Series .020 .025 FLY 1-3-4-2 .014C .014C Point gap for Magneto set to .015

Case V Series .020 .025 FLY DC 1-3-4-2 .014C .014C Point gap set Splitdorf at .015, Fairbanks at .020

Case S Series .010 .025 FLY HOLE 1-3-4-2 .010C .010C

Case R Series .015 .030 FLY DC 1 1-3-4-2 .010C .012C

Case LA Series .015 .030 FLY D 1-3-4-2 .018C .018C

Case C & L Series .015 .025 FLY D 1-3-4-2 .018C .018C

Case D Series .010 .025 FLY D 1-3-4-2 .018C .018C

John Deere M,MT .020 .025 FLY TDC 1-2 .012C .012C For magneto set point gap to .015

John Deere L,LA .020 .025 FLY TDC 1-2 .006H .008H For magneto set point gap to .015

John Deere H (All Fuel) .015 .030 FLY 1-2 .015H .015H Spark occurs when dot or "LH-Impluse" aligns with index on cover or case.

John Deere G (All Fuel) .021 .030 FLY 1-2 .020H .020H For magneto set point gap to .015 - Spark occurs when dot or "LH-Impulse" aligns with index on cover or case.

John Deere D (All Fuel) .015 .030 FLY 1-2 .030H .030H Spark occurs when dot or "LH-Impluse" aligns with index on cover or case.

John Deere B (All Fuel & Gas) .015 .030 FLY 1-2 .020H .020H Spark occurs when dot or "LH-Impluse" aligns with index on cover or case.

John Deere A (All Fuel & Gas) .021 .030 FLY 1-2 .020H .020H For magneto set point gap to .015 - Spark occurs when dot or "LH-Impulse" aligns with index on cover or case.

John Deere 80 Cranking Engine .020 .025 FLY 30 deg. BTDC 1-2-3-4

John Deere 70 Cranking Engine .020 .025 FLY 30 deg. BTDC 1-2-3-4 .020H .020H

John Deere 70 (LP), 60 (LP) .022 .030 FLY 5 deg ATDC 1-2 .020H .020H

John Deere 70 (Gas) .022 .030 FLY 10 deg. ATDC 1-2 .020H .020H

John Deere 70 (All Fuel), 60 (All Fuel) .022 .030 FLY TDC 1-2 .020H .020H

John Deere 50 & 60 (LP & Gas) .022 .030 FLY 5 deg ATDC 1-2 .020H .020H

John Deere 50 (All Fuel) .022 .030 FLY TDC 1-2 .020H .020H For point gap, for LP set TDC.

John Deere 40 (All Fuel) .022 .025 FLY 3 deg ATDC 1-2 .012C .012C For point gap, for LP set TDC.

Ford 501,601,701 (Gas & LP) .025 .027 FLY 4 deg BTDC 1-2-4-3 .015H .015H For spark, LP set a 7 deg.

Ford 600,700 (Gas & LP) .025 .027 FLY 8 deg BTDC 1-2-4-3 .015H .015H For spark, LP set at 11 deg. For spark plug gap, LPG set at .030

Ford 800,900 (Gas & LP) .025 .027 FLY 5 deg BTDC 1-2-4-3 .015H .015H For spark, LPG set at 8 deg. For spark plug gap, LPG set at .030

Ford 801,901,1801,2030 (Gas & LP) .025 .027 FLY 4 deg BTDC 1-2-4-3 .015H .015H for spark, LPG set at 7 deg. For spark plug gap, LPG set at .030

Ford NAA,NAB .025 .027 FLY 8 deg BTDC 1-2-4-3 .015H .015H

Ford 2N,8N,9N .015 .025 None TDC 1-2-4-3 .010-.012C .014-.016C

Ford 4030, 4040 .025 .027 FLY 4 deg BTDC 1-2-4-3 .015H .015H

Ford 6000 (Gas) .030 .025 FP 4 deg BTDC 1-5-3-6-2-4 .015H .015H

Ford 2000,3000 (Gas) .025 .025 FLY 3 deg BTDC 1/2/03 .015H .018H

Ford 4000 (Gas) .025 .025 FLY 3 deg BTDC 1/2/03 .015H .018H

Ford 5000,7000 (Gas) .025 .025 FLY 2 deg BTDC 1-3-4-2 .015H .018H For all Fords listed here and above, set timing at 475 RPM

Farmall/IH Super M, MV, H, HV .020 .025 FP 1st Notch 1-3-4-2 .017H .017H

Farmall/IH M, MV, H, HV .013 .025 FP 1st Notch 1-3-4-2 .017H .017H

Farmall/IH Super A, AV, C .020 .025 FLY DC 1-4 1-3-4-2 .014H .014H

Farmall/IH A, AV, B, BN, C .020 .025 FLY DC 1-4 1-3-4-2 .014H .014H For IHC magneto set points to .013, Wico magneto set to .015

Farmall/IH 154 Lo-Boy, Cub Lo-Boy, Farmall Cub .020 .023 FP TDC 1-3-4-2 .013C .013C For IHC magneto set points to .013, Wico magneto set to .015 - Int & Exh valve clearance for 154 Lo-Boy set to .015

Farmall/IH Cub Cadet, 70 & 100 .020 .025 FLY 2 deg ATDC 1 .006C .017C

Massey-Ferguson TO-20, 30 .020 .025 FLY TDC 1-3-4-2 .014H .014H

Massey-Ferguson MF 65,85,88,90 (Gas) .022 .026 FLY 5 deg BTDC 1-3-4-2 .016H .018H Spark for MF65 is 6 deg BTC

Massey-Ferguson MF 35, TO-35, MF-50, MH-50 .022 .025 FLY 5 deg BTDC 1-3-4-2 .013H .013H

Massey-Ferguson MH Pacer(16), Pony .020 .025 FLY 4 deg BTDC 1-3-4-2 .012C .013C For spark, Pony set at paint line

Massey-Ferguson MH Colt(21), Mustang(23) .020 .025 FLY TDC 1-3-4-2 .014H .014H

Minneapolis-Moline ZB .020 .025 FLY 1-3-4-2 .008H .010H For spark, 2-1/8" BDC (Gas & Distillate), 1-3/4" BDC (LP Gas)

Minneapolis-Moline ZA Series (Bat. Ign.) .020 .025 FLY 7 deg ATDC 1-3-4-2 .008H .010H

Minneapolis-Moline ZA Series (Mag. Ign.) .020 .025 FLY 8 deg ATDC 1-3-4-2 .008H .010H

Minneapolis-Moline V .020 .025 FLY DC 1-2-4-3 .006H .006H

Minneapolis-Moline UB,UTS .022 .024 FLY 1-3-4-2 .008H .010H For spark, 3-7/8" BDC (Gas), 4-1/8" BDC (LP Gas & Distillate)

Minneapolis-Moline U Series (Bat. Ign.) .020 .025 FLY 1-3-4-2 .008H .010H For spark, 7 deg ATDC (H. Comp.), 5 deg ATDC (L. Comp.)

Minneapolis-Moline U Series (Mag. Ign.) .020 .025 FLY 1-3-4-2 .008H .010H For spark, 10 deg ATDC (H. Comp), 8 deg ATDC (L. Comp.)

Minneapolis-Moline U-302 (Gas & LPG) .022 .024 FLY DC-1 1-3-4-2 .010H .018H

Minneapolis-Moline R Series .020 .025 FLY 1-3-4-2 .012H .014H For spark, 7 deg ATDC (L. Comp), 9 deg ATDC (H. Comp)

Minneapolis-Moline G-VI (LPG) .022 .015 FLY * * * 1-5-3-6-2-4 .008H .010H

Minneapolis-Moline GTA,GTB,GTC Series (Bat. Ign.) .020 .025 FLY 5 deg ATDC 1-3-4-2 .008H .010H

Minneapolis-Moline GTA,GTB (Mag. Ign.) .020 .025 FLY 8 deg ATDC 1-3-4-2 .008H .010H

Minneapolis-Moline GT .020 .030 FLY 1-3-4-2 .012H .014H For spark, 11/16" after DC 1-4 mark (H. Comp)

Minneapolis-Moline GB .020 .025 FLY TDC 1-3-4-2 .008H .010H

Minneapolis-Moline FT, FTA .020 .030 FLY C 1-4 1-3-4-2 .012H .014H

Minneapolis-Moline BF .020 .025 FLY TDC 1-2-4-3 .006H .008H

Oliver 60 .020 .025 FLY TDC 1-2-4-3 .010C .012C For points, with Magneto set .015

Oliver 70 .020 .025 FLY TDC 1-5-3-6-2-4 .011C .011C For points, with Magneto set .015

Legend

TDC - Top Dead Center
FP - Crankshaft Fan Drive Pulley
Exh - Exhaust
Int - Intake
ATDC - After Top Dead Center
BTDC - Before Top Dead Center

Data collected from an old Niehoff tune-up chart.

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