Old Marine Engine: Blaxland Single and Twin

Blaxland Single and Twin

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andrew

Posted on Wednesday, March 06, 2002 - 09:48 pm:

These comments and wonderful photos are provide by Barry Davis of the Central Coast of NSW Australia in comments to Peter Ogborne:

Quote:
Hi Peter, my name is Barry Atkins and I'm gonna let you in on one of the best kept secrets on the Central Coast of NSW. We have the ultimate Blaxland guru right here in Davistown NSW. His name is Boyd and he is a very good mate of mine. I visited the Oldmarineengines site quite some time ago and seen your name many times amongst the bulletin board entries, you know your stuff.

If I remember correctly, I was reading a discussion re cork floats in carbies and we have been having the age old problem of them sinking! Most everything we paint on them will not stand up to the petrol and ends up in the bowl of the carbie, any suggestion?

I have attached a few interesting pic's for you to check out, most interesting is the twin Blaxland Boyd built for me, one look by anyone who knows Blaxlands and you will see why! It burns 5L of Av gas per hour and pulls like no other blaxland in the country!

A few years ago a few local guys got together and resurrected what was known as the "Davistown Putt Putt Regatta" it had not been held for approx 40 years and has turned out to be a great success but most importantly it has meant the return of the sweet sound of "Putt Putt's" to our local waterways. I'm sure you know Orb Rose, he comes up and judges our motor section of the regatta.

The OME site is a great meeting point for people like ourselves, I hope you enjoy the pic's.

Regards,
Barry Atkins

See photos in next message.

Thanks Peter and Barry !!!

andrew

Posted on Wednesday, March 06, 2002 - 09:51 pm:

kevin

Posted on Friday, March 08, 2002 - 01:01 am:

Hi Barry,
It's so nice to see so many old boats in use.I remember the many(must have been hundreds) of chapman launches used by hire boat companys around Woy Woy when I was a boy It brings back a lot of happy memories.

Greg Yin

Posted on Tuesday, March 12, 2002 - 07:38 am:

Yes I have taken my launch `Rastus'(1/2 cab.14ft,porthole windows and reverse leaning stem.) in this regatta for the last two years! Yes this is a great site for us guys aye? Please come and introduce yourselves this event.

keith

Posted on Tuesday, March 12, 2002 - 01:48 pm:

Hi Barry
The cheapest thing you can coat you float with is PVC glue. The stuff you buy at the hardware store to glue plastic pipe. It will hold up to modern gas.
Keith

peter ogborne

Posted on Wednesday, March 13, 2002 - 08:04 am:

Thanks for that one Keith ........i have always used resin but surfboards are not on my agenda now and there is always a pot of that glue on the shelf .

Alf Shand

Posted on Monday, April 15, 2002 - 07:17 am:

to BARRY AITKENS. Have seen your message about 5/7 blaxlands .I have one set up in Kincrest 16 foot fibreglass hull. It is used regularly for fishing. The question is have you had any experience starting a 8/10 hp supertwin? I have one set for display and require information on the use of the priming cups

Tim Mulvey

Posted on Thursday, September 26, 2002 - 05:40 am:

Blaxland type single for sale for $700 via an ad in the local Sydney (Australia) Trading Post this week. Its a one owner 55 year old engine with no Blaxland markings but the seller (Greg @ Como, Syndey) says it has some very similar parts which makes him think it is a Blaxland.

Amazingly, its only done two hours running as it was used to run a generator in his bigger boat and was flushed after use. He said he had Aub Rose do some work on it a year ago.

Its a story for another time about me tracking down Aub to source Stuart Turner parts, ST enthusiast and stories etc

Send me an email if you want a contact number for the seller. Greg is a steamboat enthusiast if anyone wants me to put them in contact with him.

About Aub Rose, its a coincidence that I had not long ago printed off the email (earliest email in this conversation thread) from Barry Atkins and saw the reference to Aub(Orb) judging the engine section of the Davistown Putt Putt Regatta.

I hope to meet all you guys and the Davistown Putt Putt Regatta on 6 Oct. My interest is Stuart Turners (a novice) but won't have a boat there till next year.

See me if you want to order an Old Marine Engine T-shirt.

Also, Andrew asked if anyone takes digital pictures at the Regatta could they send them to him.

I'm always amazed at the number of enthusiasts I am meeting.

thanks

Tim @ Sydney, Australia

steve OBrien

Posted on Thursday, September 26, 2002 - 09:05 pm:

Theres also a putter advertised there...

CLINKER PUTT-PUTT 16FT x 7ft beam half cabin, fibreglass sheathed, 5/7hp, twin Blaxland Rae engine with electric start, auto bilge pump, navigation and interior lights, spare magneto, beaut fishing boat, moored Hawkesbury River near Spencer

eureka

Posted on Monday, September 30, 2002 - 09:17 pm:

I will be at the Davistown Regatta complete with digital camera.... I have entered Eureka into several categories... Crew with the whitest overalls, most mobile phones on a steamboat, most pleasanrt sounding whistle.

I will Take heaps of pics and either post them or email them to Andrew to post

Kevin Boyle

Posted on Sunday, May 09, 2004 - 03:31 am:

FOR SALE $22000
20ft Gentlemans Launch 77yrs old
Immaculately Presented Classic Boat
Sheethed maple carvel/clinker hull
Dynal Decking
As new 14 hp Nanni Diesel
Two pack paintwork
1 - 2 litrers Per Hour Consumption
Mooring Cover
Bilge Pump
15 lt Fuel Tank
New Engine Panel
New Engine Controls
email us for photos
currently moored Berowra Waters NSW email; [email protected]

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Visitor

Posted on Monday, March 06, 2006 - 04:14 pm:

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Woywegian
Visitor

Posted on Thursday, November 15, 2007 - 07:45 pm:

Davistown Putt Putt Regatta 2007

You might be interested at having a look and listen to a podcast abpout the 2007 Davistown Putt Putt Regatta at
http://www.talk-n-tours.com/blog/index.php

FancyYork
New member
Username: fancyyork

Post Number: 1
Registered: 06-2008

Posted on Saturday, September 06, 2008 - 03:49 am:

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Todd Vidgen
Senior Member
Username: todd_vidgen

Post Number: 78
Registered: 03-2008

Posted on Saturday, September 13, 2008 - 05:54 pm:

Boyds shed doesn't look that tidy now

Ray Tubman
Visitor

Posted on Thursday, November 27, 2008 - 08:21 pm:

I have rebuilt an 18ft clinker half cabin launch of about 50 years vintage and it came with a 5/7 hp Blaxland twin engine. The water pump has been leaking badly and when it was dismantled I found that it had a gland with graphite hemp packing and two empty ring grooves on the upper end of the piston. What should go in these grooves? I suppose they would have 'O' rings, but maybe not. Also, what lubrication does the piston/cylinder of the pump require? Can someone advise please?

Ian
Member
Username: the_bigfella

Post Number: 15
Registered: 10-2008

Posted on Friday, November 28, 2008 - 05:34 pm:

Ray - I'm no expert in these matters - but have a few of those pumps here. One has two grooves as you describe - and it has o-rings, another has the grooves but no o-rings (it came off an old seized engine - so who knows?) - and another has no grooves.

There should not be graphite packing or graphite grease on anything marine - both graphite (and asbestos for that matter) are very noble on the galvanic table - at the opposite end of it to zinc - and they will corrode any metal they are in contact with.

The packing for marine situations is normally beige in colour.

As I said - I'm no expert - but I was intending to see if water pump grease was still available - non-graphite based, of course.

Hopefully an expert will come along soon ...

Ray Tubman
Visitor

Posted on Saturday, November 29, 2008 - 06:05 pm:

Thanks Ian
I'll try the 'O' rings and will steer clear of grapite & asbestos as you advise. I'm sure the pumping action won't be as efficient without rings.

Greg Yin
Member
Username: gregoryan

Post Number: 25
Registered: 09-2004

Posted on Saturday, November 29, 2008 - 07:08 pm:

I have never known of a waterpump piston to be so worn that the packing in the gland wouldnt take up the leak.
I just went & had a look at 2 spare pistons: the first one's grooves were too shallow to take O- rings, suggesting that the grooves may be there just to retain some waterpump grease. THe other piston does have deep grooves.
I dont think O'rings are designed for such fast linear movement?
Maybe your packing is too old and hard to be tightened up any further. Your pumping action will be fine so long as it doesn't suck air [or leak water] I've never seen O rings in any of these engines before. Hope this helps.

Todd Vidgen
Senior Member
Username: todd_vidgen

Post Number: 104
Registered: 03-2008

Posted on Sunday, November 30, 2008 - 03:57 pm:

They dont use o-rings,just flax or preferably
teflon gland packing,neither of which will
last if your pump piston or bore is worn
If in good condition,the gland should only have
to be hand tightened,until it stops weeping.
Dont over tighten,as this prematurely ages
the packing and can create extra load on the engine.The grooves hold water to lubricate
between the piston and cylinder wall.
If your pump is worn they can be reconditioned

ricky holloway
New member
Username: ricky

Post Number: 1
Registered: 12-2008

Posted on Wednesday, December 03, 2008 - 11:55 pm:

hi, im a first time putt putt owner. i bought a boat with a 3.5hp pup blaxland motor n need a little tlc, i was wondering if any one could help me n locating a new spark plug and copper lead?

Todd Vidgen
Senior Member
Username: todd_vidgen

Post Number: 106
Registered: 03-2008

Posted on Thursday, December 04, 2008 - 03:21 pm:

Repco or Bursons stock the Champion 25 series plug
it costs around $30,they may carry the lead material
but if they dont,let me know [email protected],and I will make one up for you