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Topic: Another generator issue (Read 2006 times) previous topic - next topic

Another generator issue

As posted in another post, my generator quit working when I began driving it this afternoon. It had been running perfect for 2 hours prior to driving. It did similar a couple of weeks ago while I was driving. That time, the overflow tank was slightly low. I added antifreeze and it ran great for an hour in the driveway. I will check the level in the morning.

In the mean time, has anyone had similar issues and if so what did you do to remedy? Any comments appreciated while I go on this hunt.

Thanks,
Larry

Re: Another generator issue

Reply #1 –
Did you get any alarms or warning lights?

I just had a generator issue.  I picked up my coach from storage a few days ago.  While there I had it serviced.  New filters and fluids all around.  When I got it home and Barb was ready to start loading it up, I tried to start the genny.  No luck, it turned over fine and coughed a few times like it wanted to start, but didn't.  Noticed the fuel pump wasn't clicking any more.

I started reading here and diagnosed lack of fuel.  Tank is full.  So ordered a new 12v fuel pump, installed this afternoon, running great as of tonight.

My only suggestions are to check if the fuel pump is clicking, 

Also see if you are getting any fault lights.  A previous time I had overheating when the start capacitor failed on the remote radiator fan.

Re: Another generator issue

Reply #2 –
Larry, we stopped in a rest area a couple of days ago and went to fire up the gen and it started and shut down, restarted, shut down, it tried to restart again and red light came on.  Went outside and cleared the red light, which was engine overcranking.  Waited until we started back down the road and tried it again and it ran for almost 100 miles.  Pulled into the RV park and all of a sudden, it quit again, went through the restarting on its own and finally the dreaded red light again.  Have not had a chance to pull out the gen and check obvious places for issues.  Sounds like we have the same gremlin.  This was just serviced in June, so not sure where to start.  Will check oil level first, but could be a bad oil sensor.  Whatever I find, I will post under your question.  I hope you find your issue!

Re: Another generator issue

Reply #3 –
No alarms or lights seen. When I pulled out of the rv repair shop, it felt like the coach was dragging something. It was the generator engine shaking and dying. I shut it off and drove home w/o AC. I purchased a new fuel pump 2 years ago when I thought the old one was going bad. It turned out I had fuel line crack leaking air. New lines and it worked well with the old pump. At that time, I noticed that the pump ran constant clicking. A previous owner had put in an electrical spade connector which when taken apart, the clicking stopped, but the engine still would start and run.

I will change out th pump just as a precaution, since I have the pump on the coach. When It stopped the last time, I checked the radiator level, full up the cap but overflow was slightly low. The fan was running the whole time the generator was running in the driveway. I want to see if the radiator might be dirty tomorrow, possibly causing it to shut down from overheating. Don't know how hard that is to check, but will see.

Thanks,
Larry

Re: Another generator issue

Reply #4 –
Joe, thanks for the info. I hope we both find out the issues. Where is the red light you are talking about? In the coach or on the generator itself? I don't remember seeing any light.

Larry

Re: Another generator issue

Reply #5 –
Larry,

Check your water pump belt to see if it needs to be adjusted.
Which power unit (engine) do you have?  Like Isuzu, Kubota, Perkins?

Mike

Re: Another generator issue

Reply #6 –
If you have a remote radiator, the lights may be on a box in front of the fan.  Mine is turned such that the lights are hard to see as they are between the box and the fan, facing the fan. 

Re: Another generator issue

Reply #7 –
I've been having issues. It would run for an hour or 10 or anything in between. Would get a green or red light on the dash when running or shutdown but I had no lights , running or not, on the generator control box. Changed the thermostat, cleaned the radiator, burped the radiator to be sure it was full, checked the high temp switch and still had the problem.. called Jeff at powertech, described my issues and what I had done to so far to trouble shoot, he said it sounded like the control board. Then I told him I had no lights on the control panel on the generator and he replied he was almost 100% sure it was the control board.. came home that night and tried it one more time.... it ran 30 minutes..... got the new control board today, easy install, it ran almost 2 hours.. got a yellow light while the fuel pulp clicked before start up then a green light when it started...  keeping my fingers crossed!!!!! We are going to the grandvention Monday so it will get more run time then.........Here's a pic of the old board with no lights on


Keith

Re: Another generator issue

Reply #8 –
Mike,  I will check the belt. Hadn't thought of that yet. I have the Kubota engine.

Larry

Re: Another generator issue

Reply #9 –
Steve, I will look for lights by the fan. Haven't looked in the area intently before. I'm sure there are several things on this coach which I haven't found yet.

Larry

Re: Another generator issue

Reply #10 –
Keith, my coach is older than yours and somewhat different, however I will try to figure out how to verify whether ii is bad or not. I doubt if Powertech is open on the weekend, but who knows. Do you have a phone# by chance. I am like you, I have a 26 day trip starting a week from Sunday, it would really be nice to drive with AC .

Larry

Re: Another generator issue

Reply #11 –
Larry,

While you are looking over your unit check both the wiring and connector that goes to the oil pressure sending unit.  If it is loose or has a bad wire the unit's vibration could be causing a come and go shut down.  Your unit will have the Dynagen system in the generator control box (where ever yours is mounted)  see if it has any of the trouble lights are on.

Mike

Re: Another generator issue

Reply #12 –
No I don't think their open on the weekend. Below is the number option 3 if I remember correctly, they are in Florida on eastern time. Jeff is the service guy.  They 2 day fedex'ed my part for $25. Good luck I think yours is similar just not enclosed.

Keith

Re: Another generator issue

Reply #13 –
Mike thanks, I will check the wiring and see if I can find any lights on the control box. It is mounted on the front of the gen if I remember.

Keith, thanks for the number. I will check things out this afternoon between storms and if I can't locate, I will call them first thing Monday.

Thanks again,

Larry

Re: Another generator issue

Reply #14 –
I had a simalar issue, upon investgton I found a leak where the rad cap pipe makes the bend to the rad. Poor solder joint from the factory.  When the rad was full, it's worked fine. But it would not refill from the recovery tank because of the loss of vacuum caused by the poor solder joint.  The engine will not run with the  coolant low it drove me to the scotch bottle.
Safe Travels
Dave

Re: Another generator issue

Reply #15 –
Storms off and on today, I will pull the gen out and check the rad level tomorrow. Did you see any signs of leakage or buildup on the bad solder leak?

Larry

Re: Another generator issue

Reply #16 –
What is the best way to see the gen radiator on the fan side. I can look on the outboard side by the tires from  underneath, but looking to see if the rad is clean on the fan side.

Larry

Re: Another generator issue

Reply #17 –
Larry,
If it's original It probably would be a good idea have a  good radiator shop clean it inside and out. Probably isn't transferring as much heat as it did when originally installed.
You really can't see through it until it's removed.
Probably full of the old generator compartment insulation reducing air flow.

Re: Another generator issue

Reply #18 –
John I will be trying to check it out. I don't think I have time before the trip to get it out and back, will probably have to wait till we get back for a complete removal. Was planning on having the system cleaned out and new fluid put in this winter anyway.

Larry

Re: Another generator issue

Reply #19 –
 Ok! 8k isuzu 3lb1 fan belt bolts, 2 metric, I used large, long straight slot in the engine side of arm slot. To gain force to push toward rear. This allowed me to tighten "gates trueflex 1320 3/8 x 32" belt". I tightened bottom first. Then top, pressing rearward for tension. Generator was slid out. Fan on, radiator not in place.  For me. I would be unable to tighten from above if slid in. Hard if slid out from front. If able to go behind. It would be much easier. Pictures show upper tension pulley. Bottom of bracket bolt.
Note: I took off tension pulley. Rolled it. Then checked alignment. I think it was aligned wrong. Placed 2 washers behind pulley. To keep it from rubbing on brace. Lock washer on nut.
Radiator going in next.


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