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Messages - Welderherup

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1
Engines / Re: Lister LT1
« on: October 28, 2021, 06:04:35 PM »
Rings are clean. Brushes are clean. Getting 50v from the brushes and now getting 180v across those big capacitors at the bottom of the power head and about 50v from the plug socket but itís difficult figures every time a start it now. What should it be at the brushes?

2
Engines / Re: Lister LT1
« on: October 28, 2021, 05:21:33 PM »
Hi Bob. I did that already when I serviced it. They are clean and all brushes are making good solid contact with the rings and springs are nice and strong. The two larger capacitors at the very bottom of the power head are making 280v and even when I turn the rpm down it stays a constant 260. So Iím getting a nice steady feed off the generator at that point. Doesnít that mean the windings have to be good? It has to be this board then?

3
Engines / Re: Lister LT1
« on: October 28, 2021, 05:06:22 PM »
So voltage is now gone totally. Flashing up 1 and then 8 and then 0. I am getting nearly 20v from positive to earth on the socket where youíd put the plug. Doesnít that mean there has been a wiring catastrophe?

4
Engines / Re: Lister LT1
« on: October 28, 2021, 04:56:53 PM »
So Iíve had another look at this today. When I put it away last time I tuned the throttle until it was making 230v and it ran for half an hour consistently. I turned the rpm up by about 500rpm. So quite a bit. Today when I started it and tried a 1800w hoover it started fine and hoover was working normally with plenty of power. Checked the voltage and it was up to over 300! I turned down the rpm and when I did the load fell off and we are back to making 50v. It was starting and stopping. So going no load showing 50v to loading for a second showing 280 and then cutting the load again and showing 50. Iíve got better photos of the board and the back of it but I canít upload them. Can you pm me your email and I will send it to you? Iím thinking I shouldnít start this again as Iím worried Iím going to damage something with the voltage being so out of control. That little sticker on the back has a number hand written on it. 4529. There is a letter above it and itís either an a or d

5
Engines / Re: Lister LT1
« on: October 25, 2021, 03:28:37 PM »
I bought this book Ďhome generatorí and hope to learn the basics of generators. Are there any others that you would suggest or any other things that you could suggest so that I may get to a basic level of knowledge? I have no qualifications but Iím An ex sidecar racer and so enjoy engineering in general. Iíve got a lathe and a half decent workshop but of all things electronics are my weak spot. Perhaps I shall remedy that in the fixing my genny. Maybe being able to fix mine when it breaks is more valuable than having one that doesnít break down at all.

6
Engines / Re: Lister LT1
« on: October 25, 2021, 03:18:47 PM »
Thanks Bob. I will take off the board and take better photos of front and reverse. Iíve looked for a manual but didnít find a free one. I didnít want to buy one unless I knew it was the correct one.

7
Engines / Re: Lister LT1
« on: October 25, 2021, 11:27:52 AM »
So I pulled her out and cleaned the board. The board was covered with wax to keep it dry and the two offending articles seem to have perished because the wax came off. They have an alloy skin which shows corrosion and so I think itís been like this a while. One is worse than the other. I suspect the alloy skin has actually broken on one but if so itís extremely small hole. I canít see it clearly with my eye.

Any thoughts? What is this board? What are the damaged components? Is this easily replaced? Would it account for my voltage issue? There are two components with adjustable dials in them. What are those?

I would really like to keep this instead of buying a new one but I have to be able to rely on it.
 I canít load the photos at full res so Iíve had to do them on low.
Thanks Iím advance.

8
Engines / Re: Lister LT1
« on: October 24, 2021, 07:36:00 PM »
Great thanks. I will get the board cleaned and hopefully have some details tomorrow. The outer cover of the little components that show damage is pretty much gone but it looks fresh to me. I did have a problem the first time I used it, I was charging my batteries and tried to turn on a hover at the same time to test the power. This seemed to spike the power as my charger died. I reckon this is what damaged those components. Hopefully I can identify them and simply replace them on the board

9
Hi, this is exactly what Iím doing. I bought 2 130ah 12v batteries and a £120 4000w inverter. Hooked them up and they run my freezer for about 2 days. Then I fire up the genny and charge the batteries. This worked the first time but on test number 2 I ran into problems. Genny only making 70v. Fettled it today and got her up to 230v but she still seems low on grunt to me. Iím new to all this kaper so Iím learning as I go. I am in Ireland. I have an LT1 genny.

10
Engines / Lister LT1
« on: October 24, 2021, 07:03:48 PM »
Hello to all. Iím new here. I bought an LT1 on gumtree for £300. I had been looking for a diesel genny to be my primary genny should power go out. Iím in Ulster so there is seldom a lister for sale and normally they are very expensive so I was happy to get one for £300.

The genny was working fine when I bought it. I only give it a wee run a few times. Iíve had it for about 3 months. Today when I went to it to service it I noticed it was down on voltage. 70v when it should have been over 220 or whatever. I took the back cover off and noticed two little capacitor looking boyos were damaged. I also noticed a damaged clip and the races the brushes run on on the rotor were filthy and one of the little arms that holds the brush wasnít springing nicely back to its position. So I fixed that and changed filters. Fuel was a horror show. Iím amazed it was even running. So fired her up and she was making 130v now. I noticed when I moved the throttle control it increased the voltage so I screwed it up until it showed me 230v. I tried my drill and it was spinning at a good speed but still seems low on power.

Look at the photo, what is that little board? Are those capacitors that are damaged? The machine looks tired in general. Do you think I can rely on this machine? Are there tests I can do to verify the power side of things? The engine is grand. Starts first crank, not smoking. Sounds like is should in the respect that it makes the most shocking racket imaginable but is nice in its dieseling way.

Thanks in advance.

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