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Messages - Mtour

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1
Listeroid Engines / Re: Idler gear wear pics
« on: December 06, 2019, 01:58:06 PM »
Thanks for the replies..

 I put the steel gear that came with the Metro back in, it did not have near the amount of play that the bronze gear had. Maybe these metal gears will polish themselves, I have lots of magnets in the sump..I am going to run it for a few hours and check the magnets..

Thanks..

2
Listeroid Engines / Idler gear wear pics
« on: December 06, 2019, 12:54:31 AM »
Hi
 I have replaced the bearings in the metro, and installed a bronze idler gear. This is a new to me Metro with low hours I believe... I ran it for a few hours with the original steel idler gear and found lots of metal on the magnets,some of the metal looked like small wood shavings.

 Now with the bronze idler gear I am finding lots of suspended bronze in the oil. I have read on the subject and my guess is that the backlash is either too tight on a gear or to loose on another. I can not hear any noise from the gears while running. Any chance you could tell from the pictures whether I should run the engine and let the bronze idler settle in or should I come up with another fix.

Thanks.. Dave..

3
thanks...new bearings purchased..

4
Thanks for the reply..

 Could be, the crank would not rotate heavy side down without help. The piston, idler gear disconnected with the flywheels off.

 

5
Listeroid Engines / Listeroid Metro 6/1 TRB bearing.. Replace or run..
« on: December 01, 2019, 12:20:22 PM »
Hi

 Not sure if these bearings can be run in this condition, all the research I could come up with seems to point to that these bearings seldom fail.

 Run or replace.... Thanks..

6
Engines / Re: Cracks in piston insert
« on: January 23, 2018, 01:37:08 PM »
Thanks for the reply Gary....

 I paid $150 for the sl3, with just rings ,bearing and machining I will have close to $700 invested. The problem i am facing is i am doing this as a hobby, I plan on reselling the sl3. But then again it might be hard to sell it if I must tell every potential buyer that the pistons have cracked piston inserts. I really don't care if I make a dime on it, just want a happy buyer...

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Engines / Re: Cracks in piston insert
« on: January 22, 2018, 03:28:38 PM »
I guess it's hard to say whether these pistons will hold up or not. I have six pistons that all have fractures and none have failed. No one has come forward stating they have seen pistons fail from cracks in the combustion casting, so I will run these piston with oversize rings...

Thanks for the replies ...

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Engines / Re: Cracks in piston insert
« on: January 16, 2018, 12:56:25 AM »
Some better pictures...

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Engines / Re: Cracks in piston insert
« on: January 14, 2018, 11:04:13 PM »
Thanks for the replys...

 All three pistons had a build up of yellow cake on top of the iron center insert, it had the consistency of plaster. The center piston had the bottom oil scraper ring broken.
 I guess these piston are no longer servicable, really is  bummer, was planning on going the route of oversize rings, ring gap is .032. Not sure what to do now, have already sandblasted and painted the engine.

 Dave..

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Engines / Cracks in piston insert
« on: January 14, 2018, 06:38:38 PM »
Hi

 Is it normal for lister pistons to have cracks in the steel inserts in the piston tops. I have a Lister sl3 and have noticed all three pistons have multiple crack in the steel insert in the pistons.


11
Lister Based Generators / Re: lister fatboy voltage sag
« on: December 03, 2017, 02:48:19 PM »
Thanks again Starfire for your reply...

 It turned out to be a real easy fix, the ring that holds the brushes has a wedge in it that is attached to a nut. Backing the nut off loosens the ring, so I was able to turn it to match the placement of the brushes to the green generator. Now with no load I get 115v at 61hz, and at 10.5amp load I am getting 117v at 60hz.

 The name plate on the dog house on the fatboy is Panther Ranger and has a date code of 1955.

 Thanks for the help....


12
Lister Based Generators / Re: lister fatboy voltage sag
« on: December 01, 2017, 11:58:55 PM »
 Thanks Starfire for the in-depth reply.

   I had another look at the brush placement between the two fatboys, with one having the small brush holder pointing forward and the other in the opposite direction there is a 1 1/2" offset to the brush locations. The Big brushes holders point the opposite direction of the small.

 There is a tag for direction on the generator that indicates it was made to operate in the opposite direction then it is setup to run now. The generator was made in 1955 and the SL1 that is powering it was made in 1960.  So would running the generator backwards cause this issue, I have a multi meter but no oscilloscope.

The grey fatboy is the one that needs help..



 


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Lister Based Generators / Re: lister fatboy voltage sag
« on: December 01, 2017, 10:55:16 AM »

 I have another fatboy on a sl1 and have restored another as well both of these with the same 10amp load drops about 5v under load. The small brushes are getting about 3v per pole. The fatboy with the large voltage drop the small brushes are getting 17v to one pole and 5v to the other pole measured at the brushes.

 The other fatboy I have here has issues as well, it has a dead short across the starting terminals. It will not produce ac voltage unless 12v is applied across the resistor terminal for a second, then it produces ac fine. Both of these generator where purchase from the same fellow and seem to have been worked on together(same wire crimps)

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Lister Based Generators / Re: lister fatboy voltage sag
« on: November 30, 2017, 10:25:11 PM »
 
 Noticed today that the 4 small brush holders are pointing counter clockwise, looking at other fatboys they all seem to be pointed clockwise.

15
Lister Based Generators / lister fatboy voltage sag
« on: November 29, 2017, 11:48:40 PM »

  I have a mid 50's 2kw fatboy, no load voltage of 133v-62hz and with a 10amp load voltage drops to 110v-60hz. It is 8 dc brush head, 4 large brushes and four smaller. The 4 smaller brushes are connected to two wires these are the are attached to a resistor. I was under the impression that the resistor connected to the smaller brushes was to adjust for voltage drop, it seems to be providing all the current for excitation. If the resistor is disconnected voltage drops to 2v. When the generator is outputting voltage it is producing 20vdc from the ssf winding.

 Any thoughts...Thanks

 


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