Older Sea King GG9002A no spark

low93bowtie

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Aug 21, 2008
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This motor was running in the lake and one day just completely quit. it has no spark on either cylinder. what could it be?
 

low93bowtie

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Re: Older Sea King GG9002A no spark

I have a good shear pin, the wires have 0 resistance, the could have .6 and .8 ohms resistance, the points have a gap of .20, the plugs are new, everything visually looks brand new!
 

tmcalavy

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Re: Older Sea King GG9002A no spark

Do you have spark, compression and gas to the plugs?
 

freddyray21

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Re: Older Sea King GG9002A no spark

I have a good shear pin, the wires have 0 resistance, the could have .6 and .8 ohms resistance, the points have a gap of .20, the plugs are new, everything visually looks brand new!

shear pin? the shear pin is on the prop shaft. The flywheel key is something else. I think you mean flywheel key. If you have no spark to both then does it have a kill switch. Sounds like the kill switch could be grounded.
 

F_R

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Re: Older Sea King GG9002A no spark

This motor was running in the lake and one day just completely quit. it has no spark on either cylinder. what could it be?

Have you removed the flywheel since it quit? There really aren't many things that can make it suddenly lose spark on both cylinders. Sheared flywheel key is chief among them. Something coming loose in there and wiping everything out would be the other one.

The flywheel must be properly installed and the nut properly torqued to 40 ft/lbs or the key will shear and damage the flywheel and crankshaft.

There is no kill switch on that motor.
 

low93bowtie

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Re: Older Sea King GG9002A no spark

shear pin? the shear pin is on the prop shaft. The flywheel key is something else. I think you mean flywheel key. If you have no spark to both then does it have a kill switch. Sounds like the kill switch could be grounded.

Not sure... where would a kill switch be located??
 

low93bowtie

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Re: Older Sea King GG9002A no spark

Have you removed the flywheel since it quit? There really aren't many things that can make it suddenly lose spark on both cylinders. Sheared flywheel key is chief among them. Something coming loose in there and wiping everything out would be the other one.

The flywheel must be properly installed and the nut properly torqued to 40 ft/lbs or the key will shear and damage the flywheel and crankshaft.

There is no kill switch on that motor.

I have removed flywheel and everything underneath looks great. the points gap is .020 and the coils and condensers are both new. the wires have 0 resistance, so I am assuming they are good. still no spark...
 

freddyray21

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Re: Older Sea King GG9002A no spark

is the keyway on the cam broke? That will also keep it from firing in either.
 

low93bowtie

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Re: Older Sea King GG9002A no spark

I replaced the coils and condensors and cleaned points and tripplechecked the gap and now I have fire on one cylinder, but not the other. the coils are aligned to the machine marks, but I am not sure if one is adjusted right or not! what should I check for?
 

F_R

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Re: Older Sea King GG9002A no spark

The coils are adjusted to where the laminated cores are flush with the machined edges on the posts where they mount.

OK, you didn't change the spark plug wires did you? It is common for them to arc through where they are clamped to the bottom of the armature plate. Just a very tiny pin hole, almost invisible. That could account for no spark on just one cylinder. If you do change them, it requires copper core "wire" wire, not the carbon string stuff used on cars.
 

low93bowtie

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Aug 21, 2008
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Re: Older Sea King GG9002A no spark

Well I got it running, but it makes a clattering noise when you decelerate and it gets louder the longer you run it... you can barely hear it towards the end of this video



IMAG0256.jpg

IMAG0257.jpg
 

freddyray21

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Re: Older Sea King GG9002A no spark

coils out too far hitting the flywheel? You should not rev it like that it a barrel under no load it will over rev and throw a rod out of the side of the block. Fr
 

low93bowtie

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Aug 21, 2008
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Re: Older Sea King GG9002A no spark

coils aren't out too far... How do the crank and rods get oil??? it is mixed properly
 

F_R

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Re: Older Sea King GG9002A no spark

Everything is lubricated by the oil in the gas. That is why you do not want to cheat on the mix.
 

freddyray21

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Re: Older Sea King GG9002A no spark

if you think the rods are is what is making the noise then more oil won't help at this point.
 
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