(800) 853-2651
SHOP NOW

1949 TEA20- Spark Plugs

S

Scarboroughseadog

New User
I know there are similar threads but I cant seem to find just the answer I am looking for.
I run it on straight petrol and am trying to find the correct sparks to use.
I had intended to replace the current NGK BR7 ES (3/4" thread) with Champion N21 (3/4" thread)
Is the Champion the correct spark, and is there any material difference between these 2?
On reading similar posts I wonder if I should be running 1/2" threads?
A bit lost as to whether either of these run at the correct temperature?
What's the correct gap setting for these sparks?
Do I need to adjust the dizzy at all when changing spark types?
I have variously been recommended either of the above, Champion L86C, L90C or NGK B6HS or BR5HS
Bit of a minefield- any assistance appreciated!
Many thanks!
 
My TEA 20 is expected to work.I try to follow the SERVICE MANUAL SPECS:

SPARK PLUG:

Reach: .5 Inches 12.7 MM

Thread diameter: 14 MM

Gap: .030>.032 Inches

I'm totally satisfied with the engine performance running Champion L86C and or Champion L10

Contact points under Dist. Cap: Gapped at .010>.012 fully open

I have checked the Ignition timing advance with a strobe light.....25Deg advance at 2600>2680 RPM

Flywheel ring gear has 145 teeth..(6 volt starter) 360 deg /145 teeth =2.48 deg / tooth. Full advance it 10 teeth:

I never adjust the dizzy when changing spark plugs, however, I do check the ignition timing with a strobe light due to possible problems with the MECHANICAL advance weights within the Dizzy.

If you receive 1 or 1000 replies you shall receive a wide spectrum of answers as to your concerns.

Bob........Owner operator since 1974 of TEA 20 S # 182991.....6 Volt System:
a150850.jpg

a150851.jpg

a150852.jpg
 
You must log in or register to reply here.

Similar threads

K
spark plugs for perkins gas
Replies
5
Views
533
keotie
K
R
Farmall 450D (gas/diesel) Spark Plug Size
Replies
4
Views
305
rustred
rustred
T
Re: spark plugs for 8N
Replies
0
Views
491
Tim PloughNman Daley RIP
T
8
F20 spark plugs
Replies
5
Views
2K
AJB-830
A
M
6v 8n weak/intermittent spark
Replies
4
Views
1K
Bruce (VA)
B
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

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 User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top