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AlumiJim
#1 Posted : Thursday, April 30, 2009 1:57:24 AM(UTC)
AlumiJim

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We have an Onan 6.5 MCCK genset on our 32' sedan.

It was real finicky when we bought the boat 7 years ago, but it has gotten better with use. Onan recommends running 1/2 hour weekly under load, which is a lot, but we run it a lot more (I believe) than the last owner. Also, about 4 years ago rebuilt the carb.

At any rate, I noticed last week that one of the shielded cables is looking pretty shabby, so I went on line looking for parts. Luckily, we have all of the original manuals, so I had part numbers. NO luck, cables no longer available.

Does anyone know of a supplier? The cable is preventive maintenance, but I'm worried about something going that kills the genset with parts not available.

Does anyone know what I can do to try to "reshield" the existing cables? They are not yet shorting, I'm just trying to prevent an issue in the future.

I was thinking maybe I'd brush on a coat of liquid electrical tape each time I go to the boat until I get a substantial build up.

JIM


JIM
Alexandria, VA
1989 32' Sedan
'Gammelby'
Friendship, MD
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Jazman
#2 Posted : Thursday, April 30, 2009 4:28:26 AM(UTC)
Jazman

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Jim, Are you talking about the shielded spark plug wires? If so I wouldnt worry about them too much. The shielding isnt really needed. There are MANY out there that have done away with them completely. It takes a coil change and different spark plugs (MUCH CHEAPER PLUGS) with new regular style wires. I Use a Harley Motorcycle Coil on my one Onan. Let me know if you want more info about this. OH and the BEST UPGRADE I have done was converting to Electronic ignition and getting rid of the points box. Starts faster/easier and runs smoother. Let me know
Bill

1975 37' FB Sedan
Sleepless Knights
Bohemia River
Chesapeake City, MD
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comptime
#3 Posted : Thursday, April 30, 2009 12:39:41 PM(UTC)
comptime

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My onan hasn't ran since my sea trial (2004) . I have a new "carby" that I will install when were in the water. Some think it can be the points. I might be interested in that conversion over from points.
Thanks Randy
1982 37 Aft Cabin
Chrysler 440's
Prost
Ford Yacht Club
Grosse Ile Michigan
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Jazman
#4 Posted : Thursday, April 30, 2009 6:00:46 PM(UTC)
Jazman

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Randy, The electronic ignition conversion isnt hard but does take a bit of fabrication work. I copied it from a guy at this site.

http://www.smokstak.com/...um/forumdisplay.php?f=6

There is a TON of info here for all types of generators but I have really only spent time in the ONAN section.

There are a few different ways to convert over shown on that site...one is to use all Onan parts, this is kind of expensive (about $200) and still not as accurate as some of the other ways since it still uses the original points push rod and eccentric and they have ALOT of slop in them. I will have to find the info for the way I did it when I get a chance, may take me a few days. When I do I will post the exact link. Mine uses the Pertronix Hall effect pick up and magnet from a SB chevy kit ($90 new or less on ebay) to fire a dual tower Harley Coil with 8mm wires and standard style plugs. You dont have to do the coil and all, you can just have it fire your existing coil but I had the genny all apart and had the Harley coil so I figured why not! It works GREAT.

Send me a PM with a phone # and I will give you a call asap too.
Bill

1975 37' FB Sedan
Sleepless Knights
Bohemia River
Chesapeake City, MD
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Jazman
#5 Posted : Friday, May 01, 2009 3:44:32 AM(UTC)
Jazman

Rank: Top Rank Aluminum Star

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Ok Had a few mins and searched...what I have found so far is 2 of the three conversion projects that I studied before I did mine.

http://nissandiesel.dynd...ewtopic.php?p=4753#4753

http://www.gmcmhphotos.c...howphoto.php?photo=6786

These are essentially the same conversion as I did. I took all the info and tried to use the "BEST" of it in my opinion for mine.

Bill

1975 37' FB Sedan
Sleepless Knights
Bohemia River
Chesapeake City, MD
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Jazman
#6 Posted : Friday, May 01, 2009 3:49:05 AM(UTC)
Jazman

Rank: Top Rank Aluminum Star

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Joined: 12/21/2008(UTC)
Posts: 116
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By the way...It is BEST to have a RUNNING generator BEFORE you decide to do this conversion. That way you KNOW your not fighting multiple probs all at the same time.
Bill

1975 37' FB Sedan
Sleepless Knights
Bohemia River
Chesapeake City, MD
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AlumiJim
#7 Posted : Friday, May 01, 2009 5:16:30 AM(UTC)
AlumiJim

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Posts: 83
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Thanks for the feedback, as always. I like the idea of converting to electronic Ignition and that Smokstak site looks like a real keeper.

JIM


JIM
Alexandria, VA
1989 32' Sedan
'Gammelby'
Friendship, MD
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comptime
#8 Posted : Saturday, May 09, 2009 12:32:56 PM(UTC)
comptime

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Thanks Bill for the info.....I should be in the water Tuesday and will soon start working in the Onan. Once I get her running I will get with ya.

Randy
1982 37 Aft Cabin
Chrysler 440's
Prost
Ford Yacht Club
Grosse Ile Michigan
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