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Ford 9N, 2N & 8N Discussion Forum
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One cylinder 8N

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SargeVT

08-18-2005 20:30:01




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Mowed for about 3 hours with my mid mount mower on my '47 8N when suddenly it dropped from four cylihnders to one in a space of about 150 feet. I got it back to the house on one cylinder with a second cylinder kicking in occaisionally. Found that the new plugs were full of carbon - no oil. Have adjusted the carb according to forum. Comeplete overhaul last year. Has been running the best that it has in years except for a puffing sound from the exhaust at higher RPM. I am wondering if I am compensating with the high speed jet for an air leak in the in-take system. Has anyone experienced this?

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Gaspump

08-19-2005 07:07:29




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 Re: One cylinder 8N in reply to SargeVT, 08-18-2005 20:30:01  
A carb float stuck in the open position can result in that symptom too.



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Dell (WA)

08-18-2005 21:36:22




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 Re: One cylinder 8N in reply to SargeVT, 08-18-2005 20:30:01  
Sarge..... ...you have all the characteristics of "weak sparkies" and 3-hrs of runntime will melt yer squarecan ignition coil's insulative tar and short-out yer coil windings and cause weak sparkies and carbonize yer sparkies.

Your melted insulative tar will harden overnite and you will beable to re-start in the morning, and run for about 1-hr before the tars melt again. Do I haffta tell ya to replace yer squarecan ignition coil?

Don't mucka'round with cleaning yer carbonized sparkies, it just don't pay 'cuz there's invisable no-lead deposits that won't come off. Gitt some new AutoLite AL-437's and check the gap for 0.025"..... ....Dell, yer self-appointed sparkie-meister

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souNdguy

08-18-2005 20:47:37




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 Re: One cylinder 8N in reply to SargeVT, 08-18-2005 20:30:01  
Is it puffing black smoke? In any case.. use propane or wd40 ( well vented area ).. to check for a vacume leak at startup.

Soundguy



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