Author Topic: Lubricating oil?  (Read 1679 times)

Jordan

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Lubricating oil?
« on: January 22, 2019, 08:36:28 PM »
I'm looking for oil recommendations for a CS1 6hp made in 1953.
I don't think it has a full flow filter?
So I guess a dispersant additive is not wanted, as it would not encourage debris to sink to the bottom of the sump.
I'm in Australia.

Thanks folks.

ajaffa1

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Re: Lubricating oil?
« Reply #1 on: January 23, 2019, 03:49:53 AM »
Hi Jordan, if it doesn`t have a filter, you are right in thinking you need to run a non detergent oil. Repco do a heritage 30 SAE oil, probably quite pricey and you may need to ask them to order it in for you: https://www.repco.com.au/en/brands/penrite-oil/penrite-heritage-ltm-sae-30-non-detergent-engine-oil-5ltr/p/A9439085

Bob

BruceM

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Re: Lubricating oil?
« Reply #2 on: January 23, 2019, 06:42:28 AM »
I run multi-viscosity, the cheapest "all fleet" I can find.  It makes winter cranking faster and easier on my air motor - rubber wheel starter.  I have no lower sump in my Listeroid, and did add a "sock in a box" gravity filter below my big door.
 




 

« Last Edit: January 23, 2019, 06:57:15 AM by BruceM »

Jordan

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Re: Lubricating oil?
« Reply #3 on: January 23, 2019, 12:38:35 PM »
Thanks for the replies.

I'm under the impression that detergents are not the same as dispersants.
Detergents clean surfaces, dispersants are what keep particles in suspension.
It may be that detergents have some dispersant action? I don't know.

Sometimes it seems that multi-grade oils are assumed to be high detergent, but I don't see a direct connection.
It could be that a low- or non-detergent oil contains viscosity modifiers?

To try to answer the query about what's so bad about having particles in suspension -
When a full flow filter is fitted in line before reaching the bearing surfaces, the particles are removed from the system in time.
With no full flow filtering, the particles could theoretically give the oil some abrasive character.
Better to have them fall away to the bottom?


No doubt Lister engines can last a very long time with any oil.
But I wonder if they'd last a very, very long time with a particular oil.

Jordan

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Re: Lubricating oil?
« Reply #4 on: January 23, 2019, 10:08:00 PM »
Thanks Glort.
I'm sure you're right about old Listers being very forgiving of oil used.

Jordan

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Re: Lubricating oil?
« Reply #5 on: January 29, 2019, 10:54:49 AM »
I have been reading the Lister Instruction Book for diesel engines (103/666).
Should have done this sooner, as it has some information about oils with detergents, and multi-grade oils.
It says these can be used in some circumstances.

ajaffa1

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Re: Lubricating oil?
« Reply #6 on: January 29, 2019, 12:11:41 PM »
Jordan do you own a lawn mower? Not the expensive ride on types, just the average push mower most people use to cut their back yard. Non of these mower come with an oil filter and yet the manufacturers recommend the same SAE 30 detergent oil they recommend for their larger oil filtered engines. I suspect that lubrication oils are so advanced of where they were 50 years back that you probably don`t need to worry about it. Change it regularly and stick a permanent magnet on the back of the oil drain plug, you should be good for years to come.

Bob

dieselspanner

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Re: Lubricating oil?
« Reply #7 on: January 30, 2019, 03:35:10 PM »
+ 1 for the magnet in the sump.

If I can't get one to stick to the plug I leave it in the sump on rebuild, well, assuming it's a steel pan, a loose bit of neodymium that won't stick to an ally sump sculling around about the big ends ain't too clever!

There's one in the lower sump on my Mccormick tractor and the CS...

Cheers
Stef
Tighten 'til it strips, weld nut to chassis, peen stud, adjust with angle grinder.