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jnova1111
RO# 12532
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 Posted - May 22 2012 : 12:39:44
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7.3E Kohler gen carbureted in a 2001 31 PC Formula. It ran well last year before winterizing. This year changed the water separater filter before attempting to start it up since the winterizing. It would not start at all. Good spark but when I pull the new filter off it was dry even though it had been crank several times. Filled the filter with gas still no start. Carb replaced with less than 15 hrs on it. Plugs also changed this season. I figure it is either the fuel pimp or a solenoid just before the filter (normal closed till the engine is cranked.) The solenoid is a snap-tite/allied with a P/N 1UBCSV-20397-12 VDC. According to the company that used to manufacture this, it is over 15 yrs old. There I supposed to be a bypass mechanism but the only thing I can find is a he bolt on the bottom. Anyone have any ideas on how to by pass with rerouting the fuel lines and any ideas where I might need to look besides the solenoid and fuel pump.
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Homeport: ny
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CurrentSea
RO# 10265
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Posted - May 22 2012 : 12:48:55
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No expert but I think you have to bleed the air out.
I had a similiar issue and guy said he bled the fuel line.
I think there is a valve that looks like a bycycle air nozzle that lets you bleed air but if you don't have the right tool I think gas will spill. They have a tool that looks like a tube with a pin on the end. Probably could make one.
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2009 Regal 4080
Volvo Diesel IPS |
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Homeport: Anchorage YC - Lindenhurst, NY
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KiDa
RO# 16492
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Posted - May 22 2012 : 13:12:31
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See if you are getting power to the solenoid and fuel pump. If you are getting power, tap on the solenoid with a screw driver handle. It may just be stuck. If that is the case and you can unstick it, it at least gets you started until you can find a replacement. Ditto the fuel pump. I don't know how Kohler's work, however, on the W'bekes, the solenoid cuts the fuel at every shut down. It's something you do not want to bypass for safety reasons.
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Best Regards,
David
Saint Max
'99 330 Sundancer
==========
Capitalism is to this administration what Judaism was to the Third Reich.
-- Me |
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Homeport: Hopewell, VA
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jnova1111
RO# 12532
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Posted - May 22 2012 : 18:58:10
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Thanks for the replies. I'll update as on any new info.
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Homeport: ny
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Billylll
RO# 24494
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Posted - May 23 2012 : 09:06:38
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I hope you have good luck with the fix. I am very dissapointed in my Kohler 7.3ECD Low CO unit.
Too many quirks and problems after 5 seasons with 250 hours it acts like a finicky 15 year old generator.
With that being said I would never purchase another Kohler again.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
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Homeport: Tuckerton, N.J.
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jnova1111
RO# 12532
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Posted - May 23 2012 : 20:42:09
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Update - It was the fuel pump. TG because the formula replacement solenoid on the newer 31s has a SRP of over $300. Easy fix takes about1/2 hr and cost less than $100 for the pump. BillyIII they eat plugs and already replaced one carb and the replacement went after 1 hr but MTS replaced it for no charge. Thanks again guys for the suggestions.
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Homeport: ny
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Billylll
RO# 24494
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Posted - May 24 2012 : 09:20:05
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Mine has been decent on plugs but I use the platinum tipped Kohler plugs. The ECD unit is fuel injected and has far too much computer control.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
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Homeport: Tuckerton, N.J.
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Billylll
RO# 24494
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Posted - May 28 2012 : 11:50:33
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Well I finally fixed my Kohler 7.3 ECD yesterday. I ended up having to have the heat exchanger cleaned and replaced the O ring on the rawwater pump. The impeller was changed last week and I don't know how or why I missed installing a new O ring. The old one was still in place but with the added back pressure of the restricted heat exchanger it was dripping and not allowing the RW side to fully prime.
Bill
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WirelessOne,
40 Mainship
Sedan Bridge
Little Egg, N.J. |
Edited by - Billylll on May 28 2012 11:56:35 |
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Homeport: Tuckerton, N.J.
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Kohler solenoid and/or fuel pump.
