Topic: Help with the puffin (Read 11822 times)

Bernhard · « **on:** January 05, 2011, 01:03:45 pm »

hi.......i have got a nearly new Puffin........bot i will like to know,,,how to set it up correct,,,so it start easy and run perfect,,,eny instruction to it??,,,,,,,,,,Many Thanks

Regards Bernhard

ooyah/2 · « **Reply #1 on:** January 05, 2011, 02:52:49 pm »

Put a steam line , no more than 40 psi or an air line to the steam inlet and it will self start and revers by moving the valve on the top of the engine.
SIMPLE
George.

Bernhard · « **Reply #2 on:** January 05, 2011, 03:40:27 pm »

hi,,Thanks i know,,,,what ,i will like to know is...when it have be taken a part,,,how to set it up to work OK again....timing? sorry i my English ,,

ooyah/2 · « **Reply #3 on:** January 05, 2011, 04:04:33 pm »

Bernard,
Don't worry about taking it apart , every thing is set and as long as it's been made properly it will start again and as it's a Puffin you will have no problem..
Oscillating engines do not have valves and do not make the tension springs to strong, before dismantling check how many threads are protruding from the lock nuts
and put it back as you found it.
Make sure that you put the cylinders back on the same position ( Left hand and Right hand looking from the fly wheel end )

George.

ooyah/2 · « **Reply #4 on:** January 05, 2011, 04:06:03 pm »

OOPs,
Sorry Bernard NO SPRINGS ON THIS ENGINE just the tension screws.
George.

HS93 (RIP) · « **Reply #5 on:** January 05, 2011, 05:00:10 pm »

I know of one thatdid 24 hours non stop and was a few years old then , and it ran better at the end of the 24 hours ask Underpressure he was involved just don't touch them they run better and don't run it in on air or a lathe just steam, they are like a car they run better with a few miles on them,

Peter

Underpressure · « **Reply #6 on:** January 05, 2011, 05:45:22 pm »

Bernhard, put a lubricator in the feed line and run it on steam at about 30 to 35 psi for half an hour to an hour in both forward and reverse and then install it.

OR, you can do what I did with my first one. Slap it in a model and run it at 40 psi with lots of lube. 21 years later it's just gettng nice and smooth

Neil

Oh yes, I was one of the pilots of the 24 hour boat, along with Michael Porter (the owner of the model), Iain Holland (the designer of the Puffin) and Jerry Watson (of Clevedon Steam). I was younger and more stupid then

Bernhard · « **Reply #7 on:** January 05, 2011, 05:47:19 pm »

hi,,Thanks... it whas running real nice ..and i allways run in ,,only on steam,,,,,,,bot the problem is ,,that the parts on the crank shaft whas not tight enof...the screws got lose ...so now i will like to know where the right place fore them is???

Underpressure · « **Reply #8 on:** January 05, 2011, 05:59:01 pm »

According to my original assembly instructions, the crankshaft should have a flat ground on each end, at 90 degrees to one another. The crank disks fit onto the shaft and the grub screws should make contact with the flats. Everything after that should be non critical.

If you PM me your e-mail address, I'll scan the instructions and send them to you.

Neil

Bernhard · « **Reply #9 on:** January 05, 2011, 06:03:25 pm »

ohh many Thanks just what i neat...bot whas not easy to explain fore me....send,,,,,,,,,,,,,,

Underpressure · « **Reply #10 on:** January 05, 2011, 09:45:09 pm »

By the way, I forgot to say, that's a VERY nice engine.

gondolier88 · « **Reply #11 on:** January 05, 2011, 09:56:51 pm »

I had the same problem with the cheddar I used last Bernhard- I drilled the grub screws out for larger BA bolts that I turned down to be flat head screwdriver grub screws- they havn't budged at all since.

A word of caution- if the grub screws work loose in mid water you can get stuck in the middle of the lake, but if one cylinder is stil working you can score the shaft badly- we almost had this happen, but it could easily wreck the shaft.

Greg

HS93 (RIP) · « **Reply #12 on:** January 05, 2011, 10:03:38 pm »

they are normally put in with thread lock so if they are loose someone never did it properly in the first place, never heard on them comming loose. I have 3 off them

Bernhard · « **Reply #13 on:** January 06, 2011, 06:15:38 am »

hi......yes i think so,,,it did also have very soft springs,,,....it start with the pin ,there keep the cylinder straight in.get lose....and after that the crank....so i will use some thread lock now........

Underpressure · « **Reply #14 on:** January 06, 2011, 06:49:51 am »

The trunnion pin on the cylinder coming loose is a fault with the Puffin; usually after the engine has been unused for a long time. I have had it happen once on the engine I assembled myself and once on a factory engine, but both times were after the engine had been unused for quite some time.

I have not heard of the crank coming loose before.

gondolier88 · « **Reply #15 on:** January 06, 2011, 07:46:25 am »

If you thread-lock them you will never get them out again if you needed to strip the engine, they are less than 1.5mm allen bolt, as you will know, and that won't stand upto much force before it rounds the allen key in the slot.

I'm not sure what you mean here Underpressure;

Quote from: Underpressure on January 06, 2011, 06:49:51 am

The trunnion pin on the cylinder coming loose is a fault with the Puffin; usually after the engine has been unused for a long time. I have had it happen once on the engine I assembled myself and once on a factory engine, but both times were after the engine had been unused for quite some time.

The trunnion pin is a loose fit on the cylinder and is held in place by the spring clip which is held in place by the two large headed bolts on the back of the throttle body- in what way do they 'come loose'?

Greg

Patternmaker · « **Reply #16 on:** January 06, 2011, 08:56:05 am »

Loctite 270 stud and bearing fit can be undone with good quality allen keys.

Bernhard · « **Reply #17 on:** January 06, 2011, 11:33:49 am »

Many Thanks fore your help....
the engine is now running real fine again,,i did use some hex bolt to the cover,,and did the 2 small parts to,,

Regards Bernhard

Bernhard · « **Reply #18 on:** January 06, 2011, 12:16:37 pm »

http://www.youtube.com/watch?v=gsAQw0dM8Dk

Patternmaker · « **Reply #19 on:** January 06, 2011, 02:07:49 pm »

Very nice Bernhard, what are you going to put the engine in.

Mick

Bernhard · « **Reply #20 on:** January 06, 2011, 02:41:04 pm »

Thanks
I will used it in this boat

http://www.modelboatmayhem.co.uk/forum/index.php?topic=27915.0

kno3 · « **Reply #21 on:** January 06, 2011, 03:28:12 pm »

Bernhard, do you know how old that Puffin is? Probably one of the late models? I'm asking because I wasn't familiar with that sheet metal bracket holding the cylinders.

Bernhard · « **Reply #22 on:** January 06, 2011, 04:00:24 pm »

hi...no i reale dont know,,,i did bay from on in Italy...and he have only run it a few times on air, ,,so all i know it is a Cheddar,,,,,,,,,,sorry,,,,,,,,,,,

Patternmaker · « **Reply #23 on:** January 06, 2011, 04:15:35 pm »

It probally originated from Stuarts, set of castings or ready to run.

Bernhard · « **Reply #24 on:** January 06, 2011, 05:04:34 pm »

hi....yes can be...bot mine have a small Hull fore oil....

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Author Topic: Help with the puffin (Read 11822 times)

Bernhard

ooyah/2

Bernhard

ooyah/2

ooyah/2

Underpressure

Bernhard

Underpressure

Bernhard

Underpressure

Bernhard

Underpressure

Patternmaker

Bernhard

Bernhard

Patternmaker

Bernhard

kno3

Bernhard

Patternmaker

Bernhard