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1600 gas not firing


 
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M. French
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PostPosted: Sat Sep 07, 2013 2:17 pm    Post subject: 1600 gas not firing Reply to specific post Reply with quote

My 1600 gasser woke up this morning firing on only 4 cylinders. No prior problems at all. Has spark to the plugs which I replaced. No unusual mechanical noises. Still starts and runs but sounds a little to much like the other green tractors. Any ideas. This is my snow mover here in MN. so no time to waste.
 
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rrlund
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PostPosted: Sat Sep 07, 2013 2:19 pm    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

Is the cap cracked and the spark jumping? It's happened to mine.
 
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M.French
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PostPosted: Sat Sep 07, 2013 2:50 pm    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

When I pull the plug wire off and go to reattach I can see and here spark arcing to the plug.
 
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rrlund
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PostPosted: Sat Sep 07, 2013 4:24 pm    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

Is it sparking at the right time though? I had one that was sparking just before it came up on compression as near as I can figure. Every now and then when I'd try to start it,it acted like it was firing just as it was starting up on compression,wanted to kick back just a little.
 
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oliver90owner
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PostPosted: Sun Sep 08, 2013 12:17 am    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

A little help might be good. Which two pots are affected? Adjacent pots or adjacent in firing order would help, perhaps, as a start to try to narrow down the possibilities.

RAB
 
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El Toro
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PostPosted: Sun Sep 08, 2013 9:32 am    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

Look real close inside the cap for tiny breaks as been mentioned. Hal
 
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Tramway Guy
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PostPosted: Sun Sep 08, 2013 10:15 am    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

If adjacent cylinders, might be blown head gasket between them.
 
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El Toro
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PostPosted: Sun Sep 08, 2013 5:17 pm    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

Do a compression check. You may not be getting fuel to those dead cylinders. Hal
 
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M.French
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PostPosted: Mon Sep 09, 2013 2:15 pm    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

Its the second and fourth cylinder as seen from the operators seat. Have a cap and rotor on order. Will try that first.
 
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rrlund
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PostPosted: Mon Sep 09, 2013 3:13 pm    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

For future reference,that cap and rotor are the same as an older Chevy 6 cylinder and available off the shelf at any auto parts store.
 
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oliver90owner
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PostPosted: Mon Sep 09, 2013 4:06 pm    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

Almost certainly the cap as it is two adjacent HT outlets on the cap (3 and 5). One other possibility - the two HT leads have been swapped around.

The rotor will be good. If they fail to earth all six would be shorted.
 
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M.French
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PostPosted: Mon Sep 09, 2013 5:52 pm    Post subject: Re: 1600 gas not firing Reply to specific post Reply with quote

Thanks. Good info.
 
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