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Sugar Scoops Rule :)
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Lawn mower still runs after pulling spark plug wire??
My lawnmower has been pretty much a POS since I bought it (Craftsman 6.75 HP mulching self propelled). It's never mulched right, leaves clumps, bogs down easily, and the drive broke a couple years after I bought it. Well today, the dead man switch went, so there wasn't a way to shut it down, so I pulled the spark plug wire thinking that would kill it immediately. It ran for a good 45-60 seconds after!!
How can that be?
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Dave _______________________________________________ '76 911S Targa '62 VW Type 1 Sunroof '73 914 2.0 (1st Porsche, gone long ago but not forgotton) |
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10-16-2011, 03:24 PM
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Unconstitutional Patriot
Join Date: Apr 2000
Location: volunteer state
Posts: 5,620
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Gererator inside?
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10-16-2011, 03:27 PM
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Registered User
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hot spot due to carbon build up? also by pulling plug no flywheel/ blade brake action?
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10-16-2011, 03:30 PM
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Slackerous Maximus
Join Date: Apr 2005
Location: Columbus, OH
Posts: 18,151
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2022 Royal Enfield Interceptor. 2012 Harley Davidson Road King 2014 Triumph Bonneville T100. 2014 Cayman S, PDK. Mercedes E350 family truckster. |
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10-16-2011, 03:32 PM
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Sugar Scoops Rule :)
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Interesting. We had an old Pinto wagon when I was a kid that used to diesel, but it ran really crappy while it was dieseling so I didn't think about that w/ the lawn mower, as it seemed like it was running normally.
Thanks! Makes sense.
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Dave _______________________________________________ '76 911S Targa '62 VW Type 1 Sunroof '73 914 2.0 (1st Porsche, gone long ago but not forgotton) |
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10-16-2011, 04:15 PM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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Pull the head and clean off all the carbon on the piston.
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10-16-2011, 04:16 PM
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G'day!
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Decent used ones show up on Craig's List all the time for cheap. I bought one 3 years ago for $60.00 and it has been perfect.....FWIW.
Not sure why it didn't stop after you pulled the plug wire......is it named Christine by any chance?
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Old dog....new tricks..... |
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10-16-2011, 04:52 PM
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The one and only
Join Date: Oct 2011
Location: Denver
Posts: 14
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Use a window spray bottle to spray some water in the intake while its running.
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1982 300D VNT M-Pump, Holset HE221W, A/W intercooler, W/M injection 1980 240D 3.0T OM617.95, 4-speed, W/M injection, Webasto TSL 17 coolant heater. http://www.youtube.com/Turbo617 |
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10-16-2011, 05:54 PM
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Registered
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probably a Briggs & Stratton engine.............just a major POS.
Steve 73 911 T MFI Coupe, Aubergine |
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10-16-2011, 07:26 PM
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Registered
Join Date: Jan 2001
Location: So. Cal.
Posts: 9,097
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Sounds like it's time for a new one. Treat yourself.
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Marv Evans '69 911E |
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10-16-2011, 08:41 PM
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Sugar Scoops Rule :)
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Quote:
i think it's gonna go out on the curb the night before trash day and be a gift for the guys that cruise the neighborhood for metal before the trash trucks come....
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Dave _______________________________________________ '76 911S Targa '62 VW Type 1 Sunroof '73 914 2.0 (1st Porsche, gone long ago but not forgotton) |
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10-17-2011, 05:21 AM
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Registered User
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If the plug wire is still near the plug it can jump the plug. Dieseling may be a issue but with the low compression and light flywheels its pretty rare.
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10-17-2011, 05:55 AM
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Banned
Join Date: Jan 2005
Location: cutler bay
Posts: 15,141
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buy it a new spark plug
I bet the old plug is covered in carbon and is acting like a glow plug |
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10-17-2011, 06:16 AM
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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,943
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Quote:
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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10-17-2011, 08:20 AM
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Registered
Join Date: Apr 2002
Location: motown
Posts: 289
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Look for a Toro super-recycler with personal pace rear drive. If you can find one, the 6.5 GTS aluminum deck models. Search around on craigslist, you should be able to find one in the $100-150 range.
I recently picked one up from a colleague who was moving and didn't want to take it with him. By far, it's the best walk behind mower I've ever used, and I've used hondas, lawn boys, other toros and snappers. It does an awesome job mulching and the drive is phenominal; it's very natural and will go as fast as you want.
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-John '94 968 Iris Blue '85.5 944 White - Rally Cross and wrenching practice '84 944 Gemini Grey (gone, but missed...) |
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10-17-2011, 08:44 AM
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Sugar Scoops Rule :)
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I pulled the head, scraped the carbon off the top of the cylinder and the inside of the head (not too bad, but I don't know what 'too bad' is for a 1 cylinder engine), and replaced the spark plug, which also didn't look too bad.
She's running like a top now  . Thanks for the inputs.
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Dave _______________________________________________ '76 911S Targa '62 VW Type 1 Sunroof '73 914 2.0 (1st Porsche, gone long ago but not forgotton) |
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10-22-2011, 11:43 AM
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G'day!
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Quote:
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Old dog....new tricks..... |
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10-22-2011, 12:40 PM
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Targa
Bug
1964 Porsche 356 C Sunroof coupe
1972 Porsche 914 2.0 fuel injected
1983 Porsche 911 SC Targa
Work vehicle
Romad
2007 BMW 550i
