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Author Topic: Resurrection of a Lister 12/2  (Read 89276 times)

ajaffa1

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Re: Resurrection of a Lister 12/2
« Reply #75 on: October 14, 2018, 01:57:05 PM »
Very glad to hear things are OK. Good luck with doing the hot work, soldering/brazing are not the same as welding. The first two involve the addition of a lower melting point metal to the original metal, this usually involves the use of a flux to prevent oxidization. Welding involves melting two similar metals so they fuse together as one.

Best of luck with moving your engine from it`s shed. Hoping your kart works well, please use ropes and pulleys and stay out of the way. 700 Kg of cast iron can make a mess of a man, even at very slow speed.

My build is slow but steady, I`ve finished the injector and pump and I will post some pics tomorrow.

Bob

guest23837

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Re: Resurrection of a Lister 12/2
« Reply #76 on: October 14, 2018, 04:33:10 PM »
I'm looking forward to seeing it up and running!

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #77 on: October 17, 2018, 12:02:20 PM »
Hi folks

Yesterday was the day to make the repairs left by the storm "Leslie" in the village house; some broken tiles, and quite a few broken pines.

The dismantling of the 12/2 took another step (before the shack fell on it with the winter).

I already have restoration for a few more weeks ...

Cheers
Pedrosa
« Last Edit: August 25, 2019, 02:44:55 PM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

ajaffa1

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Re: Resurrection of a Lister 12/2
« Reply #78 on: October 18, 2018, 09:54:03 AM »
Well done Pedrosa, you are doing a great job in very difficult circumstances. Sorry to hear the shed collapsed, please put some polythene over the engine to keep out any water. Glad to hear you got through the weather event with only a couple of loose roof tiles and a few trees down.

Bob

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #79 on: October 18, 2018, 11:03:08 AM »
Hi bob

The shed is not yet collapsed, it rains inside but not on the engine - and yes, it is (and was) properly protectid. But another "leslie" and i think it dosn't hang.

By the way, pistons have a notch in bottom and as far as i remember it is oriented to exaust valve. Am i correct?

Br
Pedrosa
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

ajaffa1

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Re: Resurrection of a Lister 12/2
« Reply #80 on: October 18, 2018, 12:18:47 PM »
Hi Pedrosa, when looking into the crankcase door there are two visible features: the first is that there are numbers punched into the conrod and main bearing housing these should be facing you at bottom dead center.
The second feature is that the piston has a notch in it which should be on the right as you look in the crankcase door.

Interestingly, if you purchase a new piston there is no notch in it, nor is there any other way of determining the correct orientation. I have measured them and I believe them to be symmetrical so you can fit them either way.

Bob

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #81 on: October 18, 2018, 01:36:10 PM »
Hi Bob

When I took out the pistons, the gudgeon pin slided better in the direction of the notch. That is on the cyl 1 to the right, and on the cyl 2 to the left (seen from the governor side).

It means - following your clarification - that the notch will be on the side of the exhaust valve, because the 12/2 exaust manifolds are simetric. do you agree with my point if view?

BR
Pedrosa

Ps: open crankcase will be donne when is seats on kart.
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

38ac

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Re: Resurrection of a Lister 12/2
« Reply #82 on: October 18, 2018, 04:00:47 PM »

Interestingly, if you purchase a new piston there is no notch in it, nor is there any other way of determining the correct orientation. I have measured them and I believe them to be symmetrical so you can fit them either way.

Bob

I also measured them and came to the same conclusion as you.
Collector and horder of about anything diesel

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #83 on: October 18, 2018, 04:04:19 PM »
Hi 38ac

Do you agree with my conclusion?

BR
VP
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #84 on: October 19, 2018, 01:48:09 AM »
Hi Guys

Good news and other not so. right Cyl very good shape, left cyl has 2 pits 10cm below top. Right piston good condition, left more pitted on top.

By the way, the two pistons are aligned both with notch to left side (view from governor). Both has the light shade of inlet valve.

Cheers
VP

By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #85 on: October 20, 2018, 12:16:49 AM »
Kart is on the wheels...
« Last Edit: August 25, 2019, 02:45:44 PM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #86 on: October 21, 2018, 10:22:42 AM »
Hi Everyone

Cleaning blocks and heads began. Lots of decades os dirt.

Bob and 38AC: take a look at the shape of pistons and in particular for that worned valve, and tell of your justice. Your advice will be greatly appreciated.

Cheers
Pedrosa
« Last Edit: August 25, 2019, 02:50:57 PM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

dax021

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Re: Resurrection of a Lister 12/2
« Reply #87 on: October 21, 2018, 10:30:22 AM »
Don't want to piss on your parade, but i doubt that that cart would last 5 minutes with my Sr2 standing on it.  Hope you prove me wrong though.

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #88 on: October 21, 2018, 10:36:35 AM »
Hi Dax021

So am I, and it's a Lister 12/2 not a Sr2. I think 12/2 it's twice the weight.

"What would become of man if there were no faith?"

BR
Pedrosa
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

guest23837

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Re: Resurrection of a Lister 12/2
« Reply #89 on: October 21, 2018, 05:46:18 PM »
The valves look ok they need cleaned and reground I wouldn't like to be near the 12/2 when it starts balanced on that cart, madness IMO