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Old 24-01-13, 06:04 PM   #1
adgecutler
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Default Lister CS 12/2

Not quite sure if this will be a "restoration" or just more of a rebuild, this engine has been on a list of to dos and just jumped to the front.
Some of you may have read on my thread asking for help on the dating and deciphering of the serial number this engine belonged to my Dad. He bought it off of a friend after it seized up, upon investigating it was discovered the oil pump had at some time in the past been reassembled incorrectly. I believe I was told the valve within the pump had been assembled with the ball the wrong side of the spring? The engine had been running with nothing but splash lubrication and aparently for some time while powering a saw bench.
My Dad had made a start with the work and I'm not truthfully sure of how involved he had got with this job before he was struck with illness, I'm about to find out! Unfortunately he never was to recover to finish this job and see it run again, the engine has remained in an exposed state for the past 8 or so years.
Here she is as left:





As you can see the engine has been slowly surrounded since it last had attention and will require some "digging out".
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Old 24-01-13, 06:19 PM   #2
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Should be an interesting thread. hope it goes well
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Old 24-01-13, 06:40 PM   #3
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Looks like it's surrounded by more "interesting" stuff too !!
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Old 24-01-13, 07:06 PM   #4
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Thanks jmcgrath.
As work was slow today I decided to go and make a start and decided to take one head off and take it to the workshop. First to lift the rocker cover and have a look:

As I said my Dad had been working on the engine, he had obviously cleaned all the components stripping them of that lovely preservative oil. Normally on an ongoing project he would smear copious ammounts of grease on things but this one he intended to have running soon, so did not.
No retaining nuts or rockers in there, another search imminent! At least it made head removal easy:

Ah, something missing here too.
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Old 24-01-13, 08:10 PM   #5
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Yea I can see the bit missing don't forget to put it back before you try and start it otherwise you might be swinging on that handle for weeks...
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Old 24-01-13, 08:11 PM   #6
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Sinna, yes there are lots of treasures around and about, at present it resides at a friends farm, he has a keen interest in things mechanical and is very knowledgable and helpful.
Here is a view inside the crankcase with again, no oil just rust:

After a short while searching nearby I see this box:

I looks as though it has half filled with water before cracking to releive itself, plenty of corrosion evident
I will have to have a good look around the area as when the bottom dropped out of the box so have the nuts and bolts etc. Unfortunately I haven't found the high pressure fuel pipes yet either, but I'm sure it will all be nearby.
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Old 24-01-13, 08:31 PM   #7
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Quote:
Originally Posted by bloomers View Post
Yea I can see the bit missing don't forget to put it back before you try and start it otherwise you might be swinging on that handle for weeks...
Shouldn't be too hard though as there ain't no compression.....

Tony
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Old 24-01-13, 09:26 PM   #8
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The crankcase view shows the oil distribution manifold, which directs oil to the bearings etc.

The pistons are CI so will clean up, the bores look Chromed, I've got some new rings if you need them, they are genuine lister.

It's a fairly easy engine to work on, nothing out of the ordinary at all.

Peter
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Old 24-01-13, 09:35 PM   #9
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Here is a picture of the inside of the head, by the lack of carbon deposit it can seen it had been cleaned:

Ante chamber opened up and plunger removed, this was then given a clean up and freed off:


One of the valves as found:

Valves after being ground:



As you can see they are not perfect but there is loads of meat on them.
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Old 24-01-13, 09:39 PM   #10
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How is the crank on a 2 cylinder CS oriented (ie both pistons up and down together or one up / one down) ?
No technical reason for wanting to now that I just wondered if they have a ..
bonk, bonk, tick, tick
or
bonk, tick, bonk, tick
noise?

Rob
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