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Messages - Richard Wood

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Original Lister Cs Engines / Re: Lister JP4 - which oil should I use
« on: July 25, 2023, 08:23:38 AM »
Not sure where you are located but here in the states all 15w-40 oil is diesel rated. Look for CK4 or better ratings. Actually any detergent motor oil available today is superior to what was available when it was made. 
Never did understand the mineral oil deal? what else is there that one would out in an engine ?Olive oil? LOL

Late reply I know but definitely NOT a modern detergent oil although low detergent acceptable. Reason for this is engine has no full flow oil filtration system so wear particles need to be able to fall freely to bottom of sump out of harms way to be cleaned out during oil change. Modern dispersant detergent oils encapsulate wear particles to be caught by filter. Without such they just circulate around bearing surfaces of engine  :o 

I used Morris Golden Film SAE30 in my JP which is to the old API SD/CC low detergent spec. I'm sure there are classic motor oils in the US or Europe with similar CC suffix spec.

Richard

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Original Lister Cs Engines / Re: CS 18/2 Engine
« on: July 18, 2020, 08:15:44 PM »
The rotary knobs are the compression changeover valves. Screw clockwise until they seat to put the engine in high compression (for starting). Once the engine's running, they can be spun out until they stop, now the engine is in low compression. This is the preferred operating mode.

The buttons on the other side are the decompressors, one per cylinder. Their purpose is to hold the exhaust valve open (pulled out), to give you a chance of spinning the engine, by hand, sufficiently fast to start it. The tricky part, in your situation, is going to be reaching around the front wheel to hit the decompressor, preferably without getting tangled in the starting handle and before you lose too much momentum!  My old JP4 had a long rod on it, which ran past all the decompressors to the front; having worked up a sweat turning the engine, you could engage all the decompression buttons at once.... at which point, you just had to hope it fired on the first cylinder, or you were screwed!

So, the starting procedure would be: Pull both decompression buttons out. Turn the compression changeover knobs to high compression. Ensure fuel is switched on. Crank on the starting handle as hard as you can.... get a friend to push one of the decompressor buttons in. Keep cranking! When it fires and starts to run by itself, push the other decompressor in. It should pick up and run on both cyls. Once it's been running for a few seconds, unscrew one of the decompression knobs until it stops huffing and runs on two cyls again. Repeat with the other one. Job's a good 'un!  Make sure you video it and post on youtube.... a) People love to see/hear old Listers run. b) Comedy gold potential :D

Here is another innovative method of single handed hand start on a JP2M (marine version) with the alternate rocker cover mounted decompressors.


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