Author Topic: 10/2 Dating confusion..  (Read 7004 times)

nikos

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10/2 Dating confusion..
« on: September 08, 2009, 01:47:50 PM »
Hi all,

Finally managed to pick up a CS twin and have been reading this board again.
I'd like to verify the date of this machine/my understanding of Lister numbers

Plate says CS 39707 Spec 10/2/29 12HP 650 rpm

Does this place it ~ 1940 according to

http://www.oldengine.org/members/diesel/EngineDating/Dating.htm

but refers only to 3/1, 5/1 9/9 18/2

This page though

http://www.oldengine.org/members/culp/lister_diesel_miscellany.html

states that the 12 hp uprating was in the 50's sometime...

Not that it ultimately matters, but would appreciate some insight,

nikos

P.S If it helps, the (stuck) CAV injection pumps say BPF1B 70B00 77936 BH

AdeV73

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Re: 10/2 Dating confusion..
« Reply #1 on: September 08, 2009, 02:15:07 PM »

Plate says CS 39707 Spec 10/2/29 12HP 650 rpm

Does this place it ~ 1940 according to

http://www.oldengine.org/members/diesel/EngineDating/Dating.htm

but refers only to 3/1, 5/1 9/9 18/2


There's another page with a slightly different column heading: http://www.stationaryengine.org/lister_dating2.html

The 9/1 and 18/2 engines are JP1 and JP2 engines, according to the link you post later on; but obviously sit in the same numbering scheme as the regular CS engines. "Diesel CS types" covers the rest of them.

On Peter's page, he adds "3/1, 5/1" to the list, but (presumably for reasons of space) he misses out the 3.5/1, 6/1, 8/1, 10/2, 12/2 and 16/2.

Quote

This page though

http://www.oldengine.org/members/culp/lister_diesel_miscellany.html

states that the 12 hp uprating was in the 50's sometime...


I wonder if that should read "40's sometime"; as my 1950 engine claims 6hp @ 650rpm. OK, that's not conclusive, because 1950 is in the "50's sometime"... but then, "50's sometime" implies somewhere after 1950, not right on the 1st January...

nikos

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Re: 10/2 Dating confusion..
« Reply #2 on: September 09, 2009, 08:06:22 AM »
Thanx for the reply Ade,

You just added more confusion ;-)
BTW, I'm living off grid in an olive grove in Crete. The current price of olive oil probably makes your sig
quite feasible. 2008 prices were 1.70 euro per kilo to the producer. Who'd a thought a bottle of olive oil would
be cheaper than a bottle of coke?

regards,

nick

AdeV73

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Re: 10/2 Dating confusion..
« Reply #3 on: September 09, 2009, 08:40:04 AM »
Thanx for the reply Ade,

You just added more confusion ;-)

That sounds about right  ::)  :o  ;D

To attempt to end the confusion, I'd suggest your engine IS a late 1940 unit, as you suspect. You may wish to contact Peter Forbes directly for confirmation (he posts here occasionally as "listerdiesel", but much more regularly on http://www.stationary-engine.net/forum/, under the same name. He also looks after the dating page you found.


Quote

BTW, I'm living off grid in an olive grove in Crete. The current price of olive oil probably makes your sig
quite feasible. 2008 prices were 1.70 euro per kilo to the producer. Who'd a thought a bottle of olive oil would
be cheaper than a bottle of coke?


Interesting... I'd assumed that, because olive oil is so expensive in the shops, I might have been better selling the olives & buying cheapo veg oil with the proceeds; but if the producer price is rubbish, I'll be better off just burning my own.

A question (about olives) for you: I wasn't sure how many trees I'd need to reliably produce enough fuel for the lister to be definitely self-sufficient. I know that olive trees only fruit every other year; but I'm assuming that not all trees fruit in the same year? Approximately what sort of size grove do you have, and what crop does it yield annually, and - if you know - how much oil can that crop be turned into? Rough figures would be very much appreciated, many thanks!

nikos

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Re: 10/2 Dating confusion..
« Reply #4 on: September 09, 2009, 02:37:12 PM »
Hi Ade,

Fruit every other year is a misconception ;-? My olives fruit every year, albeit one year is "stronger" than the other.
Yield is related to many factors, including age, trimming, water, soil conditions etc.

For the record, I have ~ 25 trees on 4000 sq. meters.
I get annually between 180 - 230 kilos of oil, but then again I don't water or fertilise or any of that stuff, just real natural bio oil.

gotta run, I'll pick up on this tomorrow,

nick

listerdiesel

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Re: 10/2 Dating confusion..
« Reply #5 on: September 14, 2009, 08:07:35 PM »
The Lister 5/1 and 6/1 are the same engine, just that the speed is upped from 600rpm to 650rpm.

Read the same for the 3/12 and 3-1/2 /1 and for the 10/2 and 12/2 and so on.

The 8/1 and 16/2 are fixed models, there are no uprated versions.

The CAV pump code date of 'BH' is January 1941, so almost ties with the engine, which is a 1940 dating:

http://www.stationary-engine.co.uk/CAV-Injection/CAVDate.htm

The 9/1 and derivatives are the JP series and although technically a 'CS' engine, I prefer to use the JP, JK and JS designations to avoid confusion with other engines such as the Indian clones.

Hope this clears up any confusion.

I don't post here as much these days as I have my own forum to run, and most of the early queries and problems are pretty well documented now.

Peter


mike90045

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Re: 10/2 Dating confusion..
« Reply #6 on: September 26, 2009, 07:11:03 AM »
It seems very clear to me, if she has a 10/2, I will date her. :-*

rleonard

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Re: 10/2 Dating confusion..
« Reply #7 on: October 20, 2009, 04:38:13 AM »
Mike, I was thinking the same thing!
Faster - Better - Cheaper  You can have any two, but not all three