Antique Tractor Resource Page

7/8" spark plugs cold down to hot
New Champion	Old Champion	A--C	Auto Lite	Edison	Bowers	Globe	Blue Crown	Leonard
W-10	0 Com	73 Com		40-T	C78-C	6	73-Com	4-F
W-14	1 Com	74 Com	T-7	37-TS	C78-N	7	74-Com	4
W-18	2 Com	C 77L	T-9	35-S	78-N	8	75-Com	3
W-20	3 Com or No 20	78 Com	T-11	31-T	78-H	9	76-Com	2-A
W-89D	44	18	3077			10	78L-Com	1-A
W-85N	901
W-95D	45

The bottom three plugs are special extension models Recommended torque for a cast iron head is 37 lb-ft 35 lb-ft for aluminum

10 mm cold down to hot
New Champion	Old Champion	A--C	Auto Lite	Edison	Bowers	Globe	Blue Crown	Leonard
UY-6	Y-4A	104	P-4	3-S	10C	F-10	T-4	10-F
UY-6	Y-6	106		4		F-11	T-6	10-E
UY-6	Y-8	108	P-6	2-S	10N	F-11A	T-8	10-D

Recommended torque for cast iron head is 14 lb-ft 12 lb-ft for aluminum

14 mm cold down to hot
New Champion	Old Champion	A--C	Auto Lite	Edison	Bowers	Globe	Blue Crown	Leonard
J-57-R	J-2	42	A3	58-T	C14S	12A	M-2-Com	14-G
H-8	H-9	43L	A5	57-TS	14C	13	M-4-Com	14-F
CJ-8	J-8	45	A7	55-S	14N	14	M-7	14-E
UJ-12	J-12	47	A11	52	14H	15	M-11	14-C

Recommended torque is 30 lb-ft for cast iron heads 28 lb-ft for aluminum

18 mm cold down to hot
New Champion	Old Champion	A--C	Auto Lite	Edison	Bowers	Globe	Blue Crown	Leonard
D-6	4 Com	82S			C18C		R-82	6
D-9	5 Com	83-S	B5	49-TS	18C	24	83 Com	6-F
D-14	6 Com	84	B7	48-TS		25	84 Com	6-A
D-16	7	85-S		45-S	18N	26	85 Com	5-HD
D-16	8 Com	86	B9	43-TS		27	86	9
D-21	C-15	87	B11	43	18H	28	87-S	5
D-23	10 Com	88-L	388	44-HS			88	8
D-89D	49	18A		42-T

The bottom plug is a special extension model Recommended torque for cast iron is 34 lb-ft 32 lb-ft for aluminum heads For 1/2" pipe plugs recommended torque in cast iron is 35 lb-ft All values are for clean lubricate threads. Over tightening a plug with a .025 gap the gap will increase to .031. Created from a 1947 heat range list and current Champion list. by Chris Klossner klossner@worldnet.att.net

Parts and Manuals for Old Tractors!
Please support our sponsors and this extensive website by purchasing your tractor parts and merchandise from our Store. You can also support us by becoming a Voluntary Subscriber. Thanks for your consideration!

The Antique Tractor Resource Page, Your home on the net for Antique Tractors! Tell your friends and associates about us. Come back often and become a member of our Antique Tractor Community.

Home | Manuals | Parts | 12-Volt Kits | Carburetors | Radiators | Engine Kits | Videos | Books

Copyright © 1997-2011 Yesterday's Tractor Co. - A Washington State Corporation
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our Terms and Conditions of Use and Privacy Poicy

Antique Tractor Headquarters - www.AntiqueTractors.com