Brazing is adding a different metal to the mix anyway. If you can get straight plumbers bits to do the job that's fine. Its always a good idea to do a visual on the engine regularly before shutting down and being aware of what to keep an eye on. If this is for the anode to screw in, it should last if you keep up with the anodes.

Myanmar !!!!! Dam new tablet has predictive dictionary turned on.

Speaking of the new tablet, this is the one ALDI had on sale for $169 +$20 for the leather case, car charger and ear phones.
Then there was the 32gb micro SD card for $25 and I bought the ALDI $5 mobile starter pack and the $35 Unlimited Bolt On ,
(UNLIMITED calls within A us + 5gb data); YES it is a phone as well with a 5mp camera on back and web can on front.

So we are up to $254 so far, then we add a $13.99 Google store download of the Avionics App for the whole of Australia, NewZealand, Norfolk Is. and Chatham Is., we are now looking for a waterproof case which can be bought from Whitworths for about $40.

For just over $300 anybody can have the smickest (ability to edit charts with your own observations including photos), quickest (download charts for they whole of Aus, NZ in about 3 hours ) and slickest (full featured, ie layered vector charts where extra detail is added as you zoom in which is not a feature of raster charts).

Yes this is off topic but these tablets are quite amazing. Cheers Cisco.

A mate and I both bought one each and have had no problem with them. Maybe you should have gotten an exchange.

Ah well, that is getting a bit techy for me. When you said "root it" I thought you were talking about hurling it against a brick wall.

I really only bought mine for it's GPS and to install Navionics on it which works fine.

It's use as a phone and web surfer are a bonus for me. I did install Sky Gamblers Rise of Glory WW1 fighter game on it which is interesting in showing the graphics and processing capabilities of the device.

I have been looking at available apps for it but have not come across much that would be really useful to me.

Can you recommend any apps as "must haves" but obviously not those you found would not work?

Hi fellas

Don't mind yus hijacking my thread, really interesting on the tablets. Might be some people missing out though because they don't give a rats about dissimilar metals!

After getting the old cast fitting braised twice and it still leaking (grrr) I have made up a fitting out of a combination of plumbers bits, gal 3/4" tee that screwed into the motor ok. In the other end the anode fitted nicely (with a bucket load of thread tape!) . The top of the tee has 2 brass nipple reducers to fit the stainless 90* bend that the hose fits on.

Should have taken a photo! So have galvanised metal ( so called), brass and stainless. Any thoughts on hazards here??
Will keep a close eye on it. Have run the motor for about an hour with no leaks. But am more concerned with corrosion and eventually not being able to get the bloody thing apart.

Cheers.
Tony

I would be keeping a good watch on the brass bits!

rynot55 said..

Hi fellas

Don't mind yus hijacking my thread, really interesting on the tablets. Might be some people missing out though because they don't give a rats about dissimilar metals!

After getting the old cast fitting braised twice and it still leaking (grrr) I have made up a fitting out of a combination of plumbers bits, gal 3/4" tee that screwed into the motor ok. In the other end the anode fitted nicely (with a bucket load of thread tape!) . The top of the tee has 2 brass nipple reducers to fit the stainless 90* bend that the hose fits on.

Should have taken a photo! So have galvanised metal ( so called), brass and stainless. Any thoughts on hazards here??
Will keep a close eye on it. Have run the motor for about an hour with no leaks. But am more concerned with corrosion and eventually not being able to get the bloody thing apart.

Cheers.
Tony

You have five (repeat five) dissimilar metals in an area of high turbulence of sea water.
1. Cast iron engine block.
2. Galvanized fitting. Steel and zinc!!
3. Brass reducers.
4. Stainless elbow.
5. Zinc anode.

Will you have galvanic action?? Yeees!!.......Will it be an ongoing problem?? Yeees!!

The QM series Yanmars are a great engine and could serve you for 50 years or more properly maintained, though they are a bit dated now so parts may be hard to obtain.

Yanmar came out with the series in the early 70's (73 or 74) as a departure from their previous slow revving under square (long stroke, narrow bore, high torque) engines to this series as a high revving dedicated marine propulsion engine where high torque is not an issue. They are a square engine (same bore and stroke), have a high compression ratio of 25:1, yet retain the fairly simple and robust construction of the previous series.

My first advice was "That particular fitting on a Myanmar is quite important. I would buy a new one."

I hold to that but in the meantime while you are hunting one down (if you can find them buy two) I would go back to the galvanized fittings with a nipple (thread, hexagon, thread or thread pipe thread) screwed into the block, then a reducer/expander to the next size up, an internally threaded "T" piece, another reducer/expander down to original size and then a threaded barb or pipe for your water hose. Then get a threaded bung for the open part of the "T' piece and drill and tap it to take a zinc anode.

You can introduce the water on the 90 or 180 degree of the "T" piece with little difference to the waterflow, to best suit the room you have and positioning of seacock etc.

Doing this you will only have 3 dissimilar metals and you will have closely duplicated the original fitting. I would use "Stag Jointing Paste" rather than teflon tape or if you must use tape get the good pink plumber's tape.

While you are making this lot up, make a second one and toss it in your tool box for a spare. A great place to buy these kinds of fittings can be your local farmer's irrigation shop. Farmers are notoriously tight with their money so you should get the right prices there.

Back off topic:- I really love my Aldi Tablet and Navionics App.

PS:- What design is your yacht and how many cylinders is your engine???

Great stuff Stag. Do it up with it and it dries hard and don't let go easy.

I have seen rotten fittings break before the Stag let go. As for heat, nothing less than a flame will affect it.

I wouldn't use it on fittings less than half inch nominal bore.

Thanks Cisco
What are the advantages of the stag over the tape?
I do use the pink teflon tape

It is a 3 cylinder . 3qm30.

The yacht is a 38' Temptress, ketch rig.

Actually while not trying to disagree with Cisco I would recommend you keep to old style cheap engine oils of the correct grade. Avoid modern oils, especially synthetics. You may have to shop at tractor/farm shops.

Ramona said..

Actually while not trying to disagree with Cisco I would recommend you keep to old style cheap engine oils of the correct grade. Avoid modern oils, especially synthetics. You may have to shop at tractor/farm shops.

You are right but you no doubt realize I was waxing poetic and speaking figuratively.(Not even had a drink.) Always follow the manufacturers specs on oil.

I have been using Bimrose oils in all of my machines for over 15 years now and they just stop wearing out. Each of his lubricants is tailored for it's specific application.

He buys his base oils from the refinery but specifies filtering four times instead of their usual once and then modifies them with his own formulas of additives. I just don't use any other oils unless unavailable. Then I only use Caltex Havoline. Be wary of some of the Mobil oils.

Click around his web site to find a local distributor.

www.bimrose.com.au/

EDIT:- Just had a look. You will have to move to Queensland if you want to protect your machinery with Bimrose lubricants. There are certainly some good advices on his web site anyway. The farmers and truckies love his oils.

A motor bike helmet for $29.95???

I noticed in our local they had a heap of the tablet accessory packs on display which means the must have a heap of tablets still out the back.

My mate with one with the Aldi SIM and phone deal has just had his land line disconnected and wants me to buy his laptop.