Kohler generator overheating

[Greg Young]

Yep, mine is definitely the traditional blade fan, back of a square radiator. It's pretty hard to get to the motor though, and having been through the process of taking out the radiator and putting it back in, I'm not anxious to try. Some of the hex bolts securing the fan shroud to the radiator were exceedingly difficult to put back in.

But I will attempt to get to the fan motor tomorrow - if I can do so without jacking the bus up. After hearing all the recent tales, that's also something I'm loathe to do.

Greg
86 PT40
Escondido, CA

----- Original Message ----
From: Leroy Eckert
To: WanderlodgeForum@yahoogroups.com
Sent: Thursday, August 14, 2008 8:05:35 PM
Subject: Re: [WanderlodgeForum] Re: Kohler generator overheating

Ok. Disregard. Leroy Eckert 1990 WB-40 Smoke N Mirrors Dahlonega, GA Royale Conversion --- On Thu, 8/14/08, Scott Forman <scottforman75@ <a href="http://gmail.com" target="_blank">gmail.com> wrote: From: Scott Forman <scottforman75@ gmail.com> Subject: [WanderlodgeForum] Re: Kohler generator overheating To: WanderlodgeForum@ yahoogroups. com Date: Thursday, August 14, 2008, 10:39 PM This is not a squirrel cage. The pre-87 units are old-fashioned fan units. Scott --- In "WanderlodgeForum%40yahoogroups.com", Leroy Eckert wrote: > > If you look closely, there is an arrow on the squirrel cage housing showing direction. At least there is on mine. The motor on mine is 208v. I have a typical wiring diagram from the box to the fan motor if anyone needs it. > Leroy Eckert > 1990 WB-40 Smoke N Mirrors > Dahlonega, GA > Royale Conversion > > --- On Thu, 8/14/08, Bryan Altier wrote: > From: Bryan Altier > Subject: Re: [WanderlodgeForum] Re: Kohler generator overheating > To: "WanderlodgeForum%40yahoogroups.com" > Date: Thursday, August 14, 2008, 9:05 PM > > > > > > > > > > > > > > > Greg, > Looking at the motor at the end of the fan, mine > had two wires coming out of the winding and wrapped up before going back into > the winding. I removed the wrapping and found that there were two > connectors that I swapped causing the motor to run in the proper > direction. Look and see if there is a sticker on the end of the fan > housing with an arrow "direction". Since I got mine blowing out the bottom > of the fan my overheating problems are apparently gone. > > Bryan Altier > 88 WLWB 40 > Greenville, SC > > ----- Original Message ----- > From: > Greg Young > To: WanderlodgeForum@ yahoogroups. com > > Sent: Thursday, August 14, 2008 7:36 > PM > Subject: Re: [WanderlodgeForum] Re: > Kohler generator overheating > > > > > > Hi Bryan & Scott and everybody > > Follow up to our generator > issues. I had the radiator serviced and it was only 20% blocked, so the > guess is that was not the problem. However, I was wrong about the > fan. Ours appeared to be sucking air in rather than blowing out. > There is a junction box leading to the fan motor, which was wired normally - > Hot (black) to black, neutral (white) to white. I reversed these and the > motor continues to suck in. So how does one reverse the wiring and > actually make it change direction? > > I'm also a little baffled about oil > levels and think we may have a plug somewhere - the dipstick showed oil level > above max, yet when I opened the plug, with the filter off and the oil filler > cap off, no oil came out. Putting in more resulted in oil spilling out > the breather hose. > > Sorry, I'm not a gearhead like so many of you, but I > can follow instructions if they're detailed enough... > > Thanks! > Greg > Young > 1986 PT40 > Escondido, CA > (760) 807-1727 > > > > ----- > Original Message ---- > From: Greg Young > To: > WanderlodgeForum@ yahoogroups. com > Sent: Thursday, August 7, 2008 > 7:17:51 PM > Subject: Re: [WanderlodgeForum] Re: Kohler generator > overheating > > > > Hi Scott - Thanks for the info. We have the standard vertical, so I > think the fan's OK. Time to flush, and if that doesn't improve it, I'll > probably take it in for "professional" (i.e. expensive) > assessment. > > Greg Young > 1986 PT40 > Escondido CA > > > > ----- > Original Message ---- > From: Scott Forman > <scottforman75@ gmail.com> > To: > WanderlodgeForum@ yahoogroups. com > Sent: Thursday, August 7, 2008 > 5:54:06 PM > Subject: [WanderlodgeForum] Re: Kohler generator > overheating > > > > Greg, > > If you bus has the stock vertical radiator with traditional > fan, it > should blow out...or at least that is what mine does. > > > Later models...and some retro-fitted earlier ones...have a horizontal > > radiator with squirrel's cage fan blowing down and out. > > I ran my > Yanmar this past weekend at heavy load in 104 degree heat > and it never > went above 180. > > Scott Forman > 86 PT38 > Memphis > > --- In WanderlodgeForum@ > yahoogroups. com, Greg Young > wrote: > > > > > Hi Bryan - Thanks for the idea. Which way is it supposed to turn - > > exhausting air through the radiator, or pulling it in? I would think > > out, which is what ours is doing. > > -Greg > > 86 PT40 > > > > > > > > > ----- Original Message ---- > > From: Bryan > Altier > > To: WanderlodgeForum@ > yahoogroups. com > > Sent: Thursday, August 7, 2008 3:45:08 PM > > > Subject: Re: [WanderlodgeForum] Kohler generator overheating > > > > > > > Greg, We had some problems with ours overheating > > just at > times, (hot weather) and I discovered that the cooling fan > on the > > > radiator was turning backwards. Reversed two wires and problem > > > solved. > > > > Bryan Altier > > 88WLWB 40 > > Greenville, > SC > > ----- Original Message ----- > > From: Greg Young > > To: > Wanderlodge Forum > > Sent: Thursday, August 07, 2008 4:09 PM > > > Subject: [WanderlodgeForum] Kohler generator overheating > > > > Hi > - > > > > Our Kohler generator is overheating under load. So far I've > > replaced the thermostat, and so I guess that flushing the system is > > the next step. > > > > Details: > > 86 PT-40 > > Kohler > 12.5CCO67-RV > > Yanmar 4-cyl engine > > with no load ran cool. > Started adding load at around 180 degrees > > Added load up to 20A leg > one, 30A leg two - all three cruise-air > AC's running plus some other > appliances. Maintained about 115V all > the time. > > Temp slowly > climbed up to about 215 before I took the load off. In > the past it > actually tripped the high temp switch, but I didn't see > any point in doing > that again. > > After I took the load off it slowly dropped to around 200. > Stopped > it then. > > > > We've got two weeks before we head to > the desert and 100+ heat. > Any thoughts would be appreciated. > > > > > Thanks! > > Greg Young > > 1986 PT40 > > Escondido, > CA > > (760) > 807-1727 > > >