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Author Topic: Saito Steam Engine  (Read 60886 times)

Offline derekwarner_decoy

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Saito Steam Engine
« on: November 20, 2010, 10:17:05 AM »
Hi PD's...... :shhh ...but yesterday I found  :crash a new unused Saito Y2DR horizontal steam paddle engine [9cc] in a Melbourne hobby shop  ....I suspect it has been there for years & years & years & yes  :shoot I have ordered & paid for it  :sobbing

So a few questions.......

Do any PD members have a Saito steam engine?........[Kiwi?]
Have you ever opened the engine to determine the piston seal type?
Getting WEB site information on the Saito steam product is CRAZY...... :ranting ...Derek
« Last Edit: November 21, 2010, 11:38:21 AM by derekwarner_decoy »
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Offline kiwimodeller

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Re: Saito Steam Engines
« Reply #1 on: November 20, 2010, 08:09:20 PM »
Derek, I have a V4 Saito and a fellow member of our group has a T2. Both run beautifully. I have copies of the original info sheets for both which, although the English is not too good, do tell you all you need to know including how to set the valve timing for the optimum performance in each direction of rotation. I have never had to dismantle mine but I will have a look at the parts list to see if it says anything about what the piston rings are made of. I seem to remember that when I got mine a few years ago and was looking for info that the name of an Australian agent popped up somewhere - Float A Boat perhaps?. I think it is highly likely that the engine would see action in a paddler far sooner on this side of the Tasman, it seems like ratre of progress with paddler building over there is as slow as the run rate of your cricket team. Shall I P M you my address?  ;DCheers, Ian.
"Every time I think I see the light at the end of the tunnel it turns out to be some bastard with a train trying to run me down!"

Offline derekwarner_decoy

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Re: Saito Steam Engine
« Reply #2 on: November 20, 2010, 08:49:16 PM »
mmmmmmmmmmm Hi PD's.... :gathering ...I knew one of my cousins from across the ditch had a Saito engine running

Lets just wait & see next week what I find....but as Ian suggests  :sorry it may take me 1/2 half of my current build....or 5 years to test the new engine........Derek   :tongue1
« Last Edit: November 21, 2010, 11:38:54 AM by derekwarner_decoy »
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Offline kno3

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Re: Saito Steam Engines
« Reply #3 on: November 20, 2010, 09:12:26 PM »
Hello Derek,

That's a very nice engine you've gotten! I also have a Saito T2DR (twin marine with short stroke, they also make one with a longer stroke and also an even larger model, which also has an increased bore):
This is the manufacturer's website with some details:
http://www.saito-mfg.com/steamengine.htm

I am very happy with the way it runs. It is very precisely machined and starts running on low pressure, but is steam tight.
So if yours was well treated it should give you great performance. Since mine runs so well I didn't have to dismantle the pistons and don't know how they seal against the cylinder.
I have had a look at the valves though (just out of curiosity, and because it is easier to remove a valve cover than a piston) and found out that the cylinders have an interesting construction: they are cast bronze or brass, with the valve chest an integral part of the cylinder. The valve port face is then later machined into this casting. By the way, the casting quality is outstanding. I can send you some pictures if you need.

Let us know how your new engine performs (video!).
« Last Edit: November 20, 2010, 09:17:05 PM by kno3 »

Offline derekwarner_decoy

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Re: Saito Steam Engine
« Reply #4 on: November 20, 2010, 10:30:36 PM »
Hi PD's....& thankyou both... kiwimodeller & kno3 for your comments

I have five grandchildren  :c002 ......but await this true  :gift ...& will naturally photograph the engine & keep this as my engine WEB site ......Derek
« Last Edit: November 21, 2010, 11:37:35 AM by derekwarner_decoy »
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Offline derekwarner_decoy

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Re: Saito Steam Engine
« Reply #5 on: November 27, 2010, 06:18:43 PM »
Hi PD's....well my Y2DR has not turned up yet  :c002........& my call to the Commonwealth Bank  :police: has confirmed that the Melbourne Model shop has not debited my credit card.....but an e-mail suggests postage from Melbourne to Wollongong early next week  :porkies

Finding any real dimensional detail or reasonable photographs of a Y2DR is like trying to find a hens tooth  :sorry ....but I did find a recent sale on ebay as attached.......Derek

http://cgi.ebay.com.sg/SAITO-Twin-Cylinder-Model-Steam-Engine-No-Y2DR-N-R-/250708148740
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Offline derekwarner_decoy

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Re: Saito Steam Engine
« Reply #6 on: December 01, 2010, 06:47:24 PM »
 :terrific ...the Y2DR arrived today & I have removed  :hammer a few bits....[the lubricator] already

Story now is....... :shhh...but Decoy will enter a dockyard on the Eastern seaboard....& be modified ......deck part removed to accept the new engine width & re-emerge as PS Goolwa............circa 1858 on Sydney harbour

This is necessary as the new larger engine & all the accessories will not fit in existing deck opening..... :c002.....Derek


« Last Edit: December 01, 2010, 06:48:57 PM by derekwarner_decoy »
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Offline kiwimodeller

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Re: Saito Steam Engine
« Reply #7 on: December 01, 2010, 09:10:25 PM »
I am sure it will be well worth the trouble Derek, that is a lovely looking piece of machinery. If however you end up tearing your hair out with frustration at trying to make it fit just send it over here, I have an 80" paddler with a ton of room inside. Cheers, Ian.
"Every time I think I see the light at the end of the tunnel it turns out to be some bastard with a train trying to run me down!"

Offline kno3

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Re: Saito Steam Engine
« Reply #8 on: December 04, 2010, 11:18:05 PM »
Derek, why don't you try to mount it diagonally for direct drive to the wheels? Most fixed-cylinder paddler engines were mounted that way and it looks very nice. You'd just need to make some adequate supports out of brass.

Offline derekwarner_decoy

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Re: Saito Steam Engine
« Reply #9 on: December 08, 2010, 04:55:03 PM »
Hi PD's....& thanks kno3....I have sketched up some "pillar legs" of similar proportions to the ones shown below...just need to wait until the new larger & lower machinary plate is installed to gauge the correct pillar leg height etc

....I also need two shaft reducing couplings from the 4.0 mm engine crank size to the 5/32" paddle shaft...& this has been problematic in design due to clearances......but the fog  :shoot has cleared & I think we have a simple method of attaining this....& the pillar legs....via CREWE Engineering UK  :c017

I am also considering adding a small chain pinion in between two of the crank journals for a chain drive to boiler feed make up water pump......we have a few examples shown by Bernhard...although with rotating servo drive.....with the 9cc engine capacity I am sure I will have sufficient power....Derek
« Last Edit: December 08, 2010, 04:57:55 PM by derekwarner_decoy »
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Offline kno3

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Re: Saito Steam Engine
« Reply #10 on: December 09, 2010, 09:41:53 AM »
Interesting idea with the pillars, although a bit anachronistic for that kind of engine  ;)
The chain driven pump should be fine.

And Derek, do something about your boat + steam plant. They are in the same unfinished state since I first joined this forum!  ;D

Offline derekwarner_decoy

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Re: Saito Steam Engine
« Reply #11 on: December 09, 2010, 11:03:27 PM »
Hi PD's....& yes/no.... :laugh:  kno3   :whistle...the pillar legs would not have the vertical Grecian scrolling...but serve the purpose to elevate the engine by approx 75 mm :crash

1. the engine has four mounting base pre drilled holes [for M3] on approx 60 mm atwart ships x 75 mm centers FWD to AFT
2. the actual engine base width is approx 120 mm wide atwart ships
3. the Japanese translation suggests 'mount engine so shaft does not bind'
4. from this I propose to suspend/elevate the engine on those same 60 mm x 75 mm load bearing centers...& based upon the manufacturers recommendation.... :-\ ...no non preferential loading is placed upon the base structure of the engine  :shhh
5. retirement from my 6 day per week self employment .... :towel would clearly improve the vessel completion date....after all it is only ten years since I drew the first plan set..........Derek
 
« Last Edit: December 09, 2010, 11:22:45 PM by derekwarner_decoy »
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Offline derekwarner_decoy

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Re: Saito Steam Engine
« Reply #12 on: December 18, 2010, 11:26:59 AM »
Hi PD's....only a few days before I fly out to the Whyalla steel works again for my two week :c002 stint over Christmas  :oops

kno3  :towel ...you are the only existing PD member I know that has a Saito engine ...are you aware of any documentation that suggests/confirms these engines have some sort of anti corrosive surface over the brass externals? .....Derek

Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Offline kno3

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Re: Saito Steam Engine
« Reply #13 on: December 20, 2010, 07:44:18 AM »
Hey Derek,

I haven't found any written references to the brass being coated against corrosion, but the Saito boilers I have seem to have a protective lacquer on them. Many others do it to protect the polished brass (I know Wilesco does too).


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Re: Saito Steam Engine
« Reply #14 on: December 21, 2010, 03:28:44 PM »
Derek,I don't know much about Saito steam engines,but if their quality is anything like their IC aircraft engines,they are top shelf!
Saito use a chrome over aluminium plating in their IC engines,the only manufacturer to use this process.Perhaps they use a similar process over the brass parts you mention.
Saito's machining is unbelievably fine and smooth.IIRC,they actually used to make live steam locomotives as well.
I'm sure you will be more than happy with your purchase.
I don't know if this is any use to you:
http://www.loyalhannadockyard.com/Saito.htm

 

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