THE HUNTER
"Ghetto Rigging Expert"
champion J-8 plugs are for flatheads. i know the number well cause it is on a few Briggs engines i have.
8hp briggs sparkplug problem??
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EagleTalons
Master JB Welder
Are you talking about briggs OHV?
EagleTalons
Master JB Welder
Well, if he is trying to use a J-8 sparkplug in his OHV, it will never work, the threads on an OHV are about an inch long.
EagleTalons
Master JB Welder
This coming from the person that used make a gasket for a sidecover gasket.
residentg
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I got this from outdoordistributors.com
Some of the most commonly used Champion spark plugs used on Briggs and Stratton engines are:
RJ19LM, which most commonly replace Brigs and Stratton part numbers 802592s and 802595s
J19LM, which most commonly replaces Briggs and Stratton part number 492167s.
RC12YC, which most commonly replace Briggs and Stratton part numbers 491055 and 692051
RC14YC, which most commonly replaces Briggs and Straton part number 496018s.
The Briggs Operators Manual for the 120000, 150000, 200000, 210000 (the current aluminum OHV 8.25 -> 15.75 Torque Rated Engines) calls for spark plug #491055 which is a Champion RC12YC which has a 14mm Thread, 19mm (3/4") Reach.
The J8C has 14mm Thread, 9.5mm (3/8") Reach, 13/16" (20.6mm)
So, the J8 is 3/8" shorter in reach (thread length) then the RC14YC. They both have the same threads. Looks like this is possibly your problem. Look in the spark plug hole on your engine and see how deep it is.
Some of the most commonly used Champion spark plugs used on Briggs and Stratton engines are:
RJ19LM, which most commonly replace Brigs and Stratton part numbers 802592s and 802595s
J19LM, which most commonly replaces Briggs and Stratton part number 492167s.
RC12YC, which most commonly replace Briggs and Stratton part numbers 491055 and 692051
RC14YC, which most commonly replaces Briggs and Straton part number 496018s.
The Briggs Operators Manual for the 120000, 150000, 200000, 210000 (the current aluminum OHV 8.25 -> 15.75 Torque Rated Engines) calls for spark plug #491055 which is a Champion RC12YC which has a 14mm Thread, 19mm (3/4") Reach.
The J8C has 14mm Thread, 9.5mm (3/8") Reach, 13/16" (20.6mm)
So, the J8 is 3/8" shorter in reach (thread length) then the RC14YC. They both have the same threads. Looks like this is possibly your problem. Look in the spark plug hole on your engine and see how deep it is.
residentg
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Hunter:
Can you post a pic of your engine? If not, look at my earlier reply to this where I inserted some pics of engines, and tell us which one looks like your engine? If you put a plug in a flathead that is too long (reach), you will break it when you try to start it.
Flatheads: the spark plug is vertical like this: |
OHVs: the spark plug is at an angel like this: /
Can you post a pic of your engine? If not, look at my earlier reply to this where I inserted some pics of engines, and tell us which one looks like your engine? If you put a plug in a flathead that is too long (reach), you will break it when you try to start it.
Flatheads: the spark plug is vertical like this: |
OHVs: the spark plug is at an angel like this: /
porsche930dude
New member
sounds to me like the timing is off. Chck your flywheel keyway i bet its sheered off
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