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Author Topic: Southern Cross ETB diesel engine  (Read 754 times)

ajaffa1

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Southern Cross ETB diesel engine
« on: February 13, 2019, 12:28:10 AM »
Hi Guys, I am awaiting the delivery of a Southern Cross ETB 2.5 HP diesel engine. Manufactured in Australia circa 1950, they were also manufactured briefly in South Africa. This engine has sat in a mate`s shed for the last 20 years. I have finally persuaded him to part with it for free!  :) 

Sadly it is incomplete, missing the fuel injector, pump and fuel lines. The originals would have been made by an Australian company called Pyrox, who manufactured injectors and pumps under license from Bosch.

I have been unable to find much out about the missing items but believe they are very similar to the units used on a Lister CS 3/1. I suspect that I might have to change the injector nozzles and fiddle with the pop pressures a bit to get them to work properly. Any thoughts please?

I have attached a photo of a complete ETB I found on the internet, probably a breach of someone`s copyright, for which I apologize in advance. I will post photos of my unit once it arrives.

Bob

mikenash

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Re: Southern Cross ETB diesel engine
« Reply #1 on: February 13, 2019, 01:29:38 AM »
Perhaps Rob at OldTimer Engines could help with a suitable pump?

ajaffa1

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Re: Southern Cross ETB diesel engine
« Reply #2 on: February 13, 2019, 02:56:11 AM »
Thanks Mike, I`ve been looking at a few Youtube videos and it would appear that the injector pump timing must be adjusted with shims as there is no access to the plunger or cam that drives it. Interestingly the fuel injector is side mounted in the head.

I`ll flick an email to Rob once I get the engine here.

Bob

glort

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Re: Southern Cross ETB diesel engine
« Reply #3 on: February 13, 2019, 08:20:05 AM »

Always wanted one of these most Aussie of engines. What could be more Dinky Di than something called " Southern Cross"?
For those that don't know, that's our most prominent constellations of stars Visible here and features in much of our poetry and cultural history.  It is also the constellation that is featured on our flag.  There is another constellation which is similar called the false Cross because that's what it is. Real Aussies aren't fooled and know the difference and how and where to find the Southern Cross in the night sky. 

Where I am here at certain times of the year I'm right under it which is pretty special.  most times, it is in the south.

I would like a YTB model which is 10 Hp I believe but any of these is a real find no doubt.

From what I have read of the things, they were a local attempt at knocking off the Lister market and a lot of things were done the same and similar on them.
I wonder if the yanmar type Pumps are the same?  Yamnar were doing engines at that time and the modern versions as well as the China Knockoffs work by shimming the pumps as well. Just a simple plunger design. If you could find a pic of an original southern cross pump and put it up would be easy to compare. The china pumps are easy to get and cheap.

I got an idea there are some other engines these were pretty interchangeable with as well. Might have been Moffit Virtues.

ajaffa1

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Re: Southern Cross ETB diesel engine
« Reply #4 on: February 13, 2019, 11:38:01 AM »
Hi Glort. when I bought my Lister CS, the farmer also had a YBT. I chose the Lister because it turned over, while the other was seized. Parts for Lister engines are readily available,.New parts for old Southern Cross engines would have to be manufactured at huge cost. That said, you only have to look at the work being done by 38ac to see what can be achieved by a determined and skilled individual.

When it gets dark here I can see the entire Milky Way in the sky, No wonder that earlier people worshiped the heavens and learned to use them to navigate the globe.

Bob

38ac

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Re: Southern Cross ETB diesel engine
« Reply #5 on: February 13, 2019, 02:55:29 PM »
 You guys have all the best old engines over there :(
Collector and horder of about anything diesel

BruceM

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Re: Southern Cross ETB diesel engine
« Reply #6 on: February 13, 2019, 04:08:47 PM »
I'm "centrally located" aka middle of nowhere, at 5600 ft and the night sky is very bright here too; the plane of the Milky Way is obvious. A big reminder of how very small we are, even within our own galaxy.

EdDee

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Re: Southern Cross ETB diesel engine
« Reply #7 on: February 18, 2019, 02:57:51 PM »
"A big reminder of how very small we are, even within our own galaxy. "

Or that someone stole the damn tent while I was asleep.....

E
12/1 750RPM/9HP Roid 5kVA- WMO Disposal/Electricity & Hot Water Gen
12/1 650RPM/8HP Roid 4.5kVa - Demon Dino
Chinese Yanmar - Silent Runner with AutoStart
Classic Komatsu 1963 Dozer/Fergusson 35 Gold Belly ...
Bikes,Cars,Gunsmithing & Paintball...Oh yes, a 5Ha open air Workshop to play in!

dieselspanner

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Re: Southern Cross ETB diesel engine
« Reply #8 on: February 18, 2019, 03:06:08 PM »
Years back I read something to the effect of....

 'How amazing would it be if there was another sentient life form out there, somewhere. How amazing would it be if there wasn't?'

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

ajaffa1

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Re: Southern Cross ETB diesel engine
« Reply #9 on: February 24, 2019, 02:57:56 AM »
Well guys, the 1955 ETB landed in my shed today. It is missing a few bits but I am hopeful that I will be able to find these at old timer engines. An early inspection suggests that it has suffered water ingress at some time. The piston is OK but the bore is badly corroded and will need sleeving. I attach a couple of photos just to make you all envious. If anyone has any information about these engines please let me know.

Bob

glort

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Re: Southern Cross ETB diesel engine
« Reply #10 on: February 24, 2019, 07:33:50 AM »

Nice engine.

Do you ever get to any old engine shows Bob? Some of them have tables full of old bits and pieces. There is one down the road from me in may and another HUGE one in September at Clarendon, about 45 Min away.
I think some of the country ones are better for parts though.

Hope you can find what you need soon and get this one running again soon.

ajaffa1

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Re: Southern Cross ETB diesel engine
« Reply #11 on: February 24, 2019, 08:10:53 AM »
Hi Glort, sadly I no longer drive so going anywhere generally involves days of careful negotiation with She who must be obeyed!

Having looked at fuel injectors, I am convinced that an injector from a Lister CS 3/1 could work well if I adjusted the pop pressure a little. I might have to turn up an adapter sleeve to ensure a good fit and fabricate a hold down plate.

There is a guy in Toowoomba that has some spare parts for these engines, I will be contacting him this week and let you know how I go.

Bob

ajaffa1

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Re: Southern Cross ETB diesel engine
« Reply #12 on: February 24, 2019, 08:45:47 AM »
Further to my last post, I have just taken the rocker cover off and found a missing bolt in the rocker assembly, nothing that can`t be replaced. I also noticed that the diaphragm on this engine is built into the rocker cover allowing hot oil fumes to lubricate the rocker gear and valves. I also noted that this must be one of the earliest engines to have tubular push rods with toughened steel inserts at either end, I thought that was introduced by the Japanese in the 1970s.

One of the cylinder head bolts is nearly rusted through (see photo)

Bob

glort

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Re: Southern Cross ETB diesel engine
« Reply #13 on: February 24, 2019, 09:38:45 AM »

Interesting how the Cylinder head bolt is so corroded but nothing around it looks too bad.

I have been doing some home work and Trying to convince the Mrs to buy a house as an investment property.
I'm thinking Now maybe maybe we should look at investing in "Bob"s Olde Time engine Repair Shoppe".

You can do your, mine and your mates engines as  sample/ promo engines we can document on forums and YT and then will be in business proper. Butch May consider helping  to tell us how we can make fortunes out of this.  I'll pay for the machinery and tooling, You provide the skill Bob.
As things ramp up we can find other knowledgeable people to help out.  Our best rerouting source will no doubt be the seniour Citizens Centres.

I'll find some Bimbo Model and we'll do a short film that makes old engines cool and we'll start a new trend.
We'll make a fortune off the Merch sales alone! then discovery will want to make a series and we'll be Multi Millionaires!

Orange County Choppers and West coast Customs move over, Bob's Olde time engine repair Shoppe is going to be the next big thing.

Factory tours available and don't forget to Visit the Gift shop for autographed Jock straps and genuine authentic Lister CS flywheel Indian reproductions..... Perfect for the man who has everything  and guaranteed no 2 alike!

ajaffa1

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Re: Southern Cross ETB diesel engine
« Reply #14 on: February 24, 2019, 10:26:52 AM »
Hey Glort, It`s a nice dream but that`s all it is. Can I recommend you take your medications with food and maybe have a short lie down after.

The corroded cylinder bolt is very odd, I wonder if there is a leak in the cylinder gasket which blew hot gasses and humid air onto it for years. Either way it`s got to be replaced and before that I am going to have plenty of fun trying to get the old one out.

Bob