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RE: Onan Marquis Gold 5500 Generator - Low AC Voltage
Heh, heh... yeah, that would be me. Probably Williams as I am a huge fan of the genre and I seemed to go through the "standard" CPU boards (Robotron, Joust, etc.) pretty fast for some reason. Usual Williams 4116 RAM issues. I've narrowed my collection down quite a bit since then. I'm down to probably 65 units and would like to get down to half that before my gameroom is "done". You have quite a memory!
I was in your area last year and I stumbled across the coolest old school arcade in a club called Oskar Blues in Lyons. Ever been there?
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TonyBerry
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03/18/10 05:30pm |
Tech Issues
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RE: Onan Marquis Gold 5500 Generator - Low AC Voltage
Thanks gunny357, I'll give them a call and see what they say.
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TonyBerry
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03/18/10 12:42pm |
Tech Issues
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RE: Onan Marquis Gold 5500 Generator - Low AC Voltage
Heh, heh... thanks kg5388. I must admit, that is under $300, but I was really hoping for the $99-129 range garry1p was seeing. I might give Cummins Mid South a call and see if there is a restocking fee if I purchase the part and I end up not needing it. I hate being a "part swapper", but a single fully integrated and epoxied ECU leaves me little choice. One of hobbies requires component level board work, so I'm no stranger to that level of involvement.
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TonyBerry
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03/18/10 11:17am |
Tech Issues
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RE: Onan Marquis Gold 5500 Generator - Low AC Voltage
Thanks for the link. I tried (among many others) searching for "Onan 300-5374". That seemed to yield the most results, but everything was $300+.
I tried your link and got the same thing. First link was for Lexus parts, next was Tennis Pro earnings report, next was the right ECU at $331.70, next was an old posting that no longer contained the key words (and no cached version available), on and on. No valid links to purchase for under $300.
Thanks for responding. I'll just have to keep my eyes out for a suitable replacement in my price range.
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TonyBerry
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03/18/10 10:31am |
Tech Issues
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RE: Onan Marquis Gold 5500 Generator - Low AC Voltage
kg5388, thanks for the response. I ran some of those tests as instructed in the Service Manual I ordered for this genset. All of the tests, I was able to perform without special tools, passed fine. I doubt my local shops would let me "borrow" their generator/engine isolation tool without charging me their typical rate. One shop is $125 an hour (one hour minimum) and another was $85 an hour (no minimum, but he said it'd take a couple hours to troubleshoot). I should have been an RV mechanic.
garry1p, do you mind PMing me some of those pricing links. I did several Google searches and read through 3-4 pages, but couldn't seem to find anything less than about $314. I see them for sale on eBay and various Onan dealers and RV part sstores, but all over $300. Thanks!
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TonyBerry
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03/17/10 10:36pm |
Tech Issues
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RE: Onan Marquis Gold 5500 Generator - Low AC Voltage
Thanks for the quick reply garry1p. Your thoughts mirror mine almost exactly... buy an ECU online for as little as possible, if that's not it, resell it. Lose maybe $20-30 bucks in shipping and related costs. It's cheaper than letting a dealer do the same thing. Like you said, even if I send off the ECU to be tested, you're looking at shipping both ways plus diagnostic costs. I wouldn't bother keeping the spare ECU as this camper is going up for sale and I'm getting something smaller. Maintaining a 40' toyhauler for simple weekend camping is too troublesome. Plus I need an F550 to properly pull it.
I guess I'll start hitting the "sale" sites. Thanks for the confirmation of thoughts.
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TonyBerry
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03/17/10 06:13pm |
Tech Issues
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Onan Marquis Gold 5500 Generator - Low AC Voltage
http://img294.imageshack.us/img294/3184/onantag.jpg
I have a very low hour (about 100) genset that has always worked flawlessly, but is now acting strange. It starts and runs fine. No error codes (blinking lights). It has dual 30amp, 120volt, output and both legs are a steady ~40volts AC. I pulled the genset out of the unit and hooked up an external battery (to start it) and a modified gas can with a length of hose (to keep it running) and performed various tests. Nothing obvious seems to be wrong with it. Brushes and armature on the generator look fine. The only thing that seems to control the output voltage regulation is the protected epoxy-filled ECU. In this case, part number *300-5374---* (exactly as it appears on the ECU label). Does anyone know of a shop that can test my ECU for functionality? The local shops charge $100+ an hour and they are parts swappers. "We'll try a new ECU to see if that fixes it." "And if it doesn't?" "Well, that a special order part, so we can't send it back and you'll be charged."
Thanks for any suggestions or input.
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TonyBerry
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03/17/10 02:37pm |
Tech Issues
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