RC Specialties

TZ,

The baffle is part of the end cap of the muffler. It fits to the barrel part youhave and the long bolt holds them together.

Jim

Jimmy Hoffa

My Feedback: (3)

I installed the new carb that came with the motor and started it for the first time and it runs perfect. It remains a mystery how tightening the carb would make it bind. I can see no defects in the original carb.

johnS555

My Feedback: (27)

Have a question for the Saito guru`s..... I have an OS with the crankcase vent running into the intake manifold, as everyone knows, anyway, how if any is it any different on the Saito if I were to weld or tap a nipple on the intake of my 100, or any of my Saito`s and do that to get away from the mess on the plane, what would be the ramifacations..????? Thanking all the returns in advance...........


JohnS555 Saito member # 119

FNQFLYER

Old Fart   I am just back from Brownsville (Townsville to every one else) so haven't answered earlier.  That cold fuel you feel are you sure it is fuel or water  or water fuel mix.  I have this interesting situaton where when my 65's are running sweet (just rich) the intake tube on the carby (to engine) actually gets cold due to fuel flow, and this we have the moist air condensing and blowing back in the prop wash.
I try for the situation as often as posible unless I am wringing the beasts neck fo ultimate power.
Let me know what you find.  BTB weather is great but there is still heaps of waer around and I purchased a couple of Saito mounts the other day (combined ones) for the 62 just a tad heavier than the GP f/glass ones
Catch ya

FNQFLYER

Re tuning 4 stroke model a/c engines.  A machinist (fitter and turner) at the University of QLD has messed around with a series on OS61s to get tremendous performance.  Put valves out of a bigger OS in it, a tuned exhaust stub, a perry pump and messed with the fuel mix, and the result was unreal.  That is what I would call tuning and there is lots of this stuff happening around OZ as I type this.

Rudolph Hart

John i think it was hobbsy experimenting with a midsized saito a fair while back on this thread not sure,perhaps his line from the pressure nipple was going to the cam area,cheers peter

Rudolph Hart

Hi mate you flying on floats yet?

It;s definitely fuel will remove the cowl and run it tomorrow,see if i can see where it's coming from but would like to replace the "o" ring in the main needle housing anyway and it looks like a fiddly job as it's very small and inside the brass housing.Any tips to make it easier re removal and fitting the new one,can you buy these very small rings seperately and i'd like to do the intake tube one's as well.I need to get this engine humming so i can swap the standard muffler for a turboheader and see how it goes compared to my well worn standard one,cheers peter

FNQFLYER

Old Fart, It is 32 breeze blowing (to much to fly) and the sky is blue with just enough white / grey clouds to fly O/T if it wasn't windy as it is.
Re the fuel thing, I use brass probes that I have made up over the years to the pattern in either the OS or Saito books RCM put out many years ago.  Question is the intake tube cold to touch and does it have drops of moisture around it??  If so check / replace the o rings either side of the tube.  Re the o rings the local small engine places have them or you have an in with a local LAME (a/c engineer) get access to his o ring stash.  I have a parker O ring pyramid ring sizer and a hole sizer that gives me the diameter of the o ring and the diameter of the rubber that forms the ring.  If you want Avial has them.
Any way the process above eventually costs you less because HHQ are more expensive that Bunnings / Bike shop or even your local GA aircraft supplier in a lot of instances
Re the locality here if our collective govts fixed the Bruce Highway we would all be a lot happier, but there is an election next year and the money is flowing even to some model a/c clubs especially if there are potential votes to be got   

FNQFLYER

Old fart if you have trouble getting them ( o rings) let me know.  Re the probes the books mentioned are still available on the RCM site

johnS555

My Feedback: (27)

Thanks OF but that don`t seem feasable or even possible to run it around and around the crank case ???? I can`t find anything on it from the past posts, I may try it for an experiment, don`t see where it would be any different than an OS, a motor is a motor is a motor if you know what I mean, at worst it would kill some power but I have plenty............ Looks to me like with the oil entering the intake, that if one was running 18% oil that it would raise the percentage up to 20 or more into the engine..just thinking about it, but that thinking sometimes gets me into trouble :-) ......... thanks again..... J

FNQFLYER

Old Fart, been up the shed and a thought came to me over my McAngus (yes I know not a good look) I do suppose you have checked your fuel line for splits and pin hole leaks etc haven't you???
I got those new Saito mounts and I am still impressed, I will use them unless I am going for absolute min weight in a model eg 3 pounds for my YS 63 powered open duration model.  The f/glass mounts do not stand the stress that some of these O/T models give them BUT I will be still using the (f/glass mounts) in my "small models"
It is getting a tad warm actually the humidity is up to 90% cloud base increasing so we will have some precipitation this pm methinks typical for this time of year.  Oh yes we went through Cardwell on the trip to Townsville and with all the trees removed from the foreshore you get a beaut view of the islands etc but boy did the town get trashed
catch ya 

Hobbsy

My Feedback: (102)

OF, that experiment was a dismal failure, when I plumbed the vent tube to the cam box and put the exit on the other side of the cam box, oil came of of the exit tube but none came up the vnet tube from the backplate. The oil just went forward inside the engine and out the exit tube I created. I have Saito with the vent tube on the backplate, on the bottom of the crankcase near the front bearing and on the cam box and all work exactly the same.

lopflyers

My Feedback: (12)

That is why I love Saitos so much.
The seller tells me this plane and the Saito 62 has being sitting at his garage not run for almost a year. So Im expecting some problems starting it. I fueled it and put the ignitor on, gave the prop a couple of spins with the chicken stick before using the electric starter as I always do and whoala, the thing started with the chicken stick only.
Good thing that I was paying attention, it required just a click or two in the high needle and up we went.
Niceeeeee

Rudolph Hart

Thanks for clearing that up dave i guess john will have to jam the vent line into the carby and see what happens,good luck and let us know what happens john.At the risk of sounding wimpish i would'nt mind a bit less oil on the outside of my planes sometimes,i get lazy

Rudolph Hart

Sounds like you have a shed and fridge setup similar to mine,it's stocked with various brands of mickangus too just been on horizons website and can't believe how cheap those saito engine gasket sets and carby gasket sets are so i've ordered heaps of them for different sized engines i have,the only problem is that there is no carby gasket kit listed for the 82.How many engine sizes share this carby???

FNQFLYER

Don't know about the caby gasket sizes but you could check the parts listings that come with the engines or the Horizon Hobbies site for same data.
The Mc Angus came from Golden Arches slack day yesterday and yes I have the very necesary fridge in the shed and bugger the Red Queen and her carbon emissions
Another one for you and the "tuning types".  There is a guy in SE QLD that is working on hotting up a FG36 for Scale Aero racing to go into a f/glass Mew Gull I am watching with great interest and I am also now trying out how to fit a Saito 30 into a park flyer now the MAAA is going to do something about legalising them
Suns out and so am I
Catch Ya

FNQFLYER

Old Fart you should start laying in supplies and getting the car tuned and come to Calvert for the QLD SAM champs and you can then see what we red necks do to make Saitos really go.  It is the June long w/end

IslandRyan

Howdy All....I have the FA180G/K in my AT-6 and just picked up the FA91S for my Seawind, can I join the club now....[8D][8D][8D]

Rudolph Hart

I have a saito30 in a pheonix rainbow,not really a park flyer but if you think you can squeeze one into a foamie you go for it,and post a vid please cause you are only going to see that thing once my friend

June is a long way away,a long term plan for me is this day next week.Interested in following the mew gull progress cheers mate

FNQFLYER

Old Fart, my mentor (the 75 year old bikie) has shoe horned an OS 20 fourstroke (that he "acquired from me") into a T28 park flyer and it gave a Ranjt Phelan F1 racer a run for its money. The big problem was the firewall, kinda soft but it lasted for some 5 laps around the field before the parkie got re kitted.
I gather the FG36 conversion is looking good and for info the Mew Gulls that raced in SA recently were mostly the f/glass fuse versions from Rocky (Rockhampton).  I will see the efforts in June on the long w/end and hopefully will have some data to give back to the forum.  On the subject of tuning there are a couple of speed conversion people in the USA that specialise in P&W engines and their mods can be related to our Saitos as the cylinder design is a direct copy of the baby Pratts (985, 1340, 1530 and the 1830 engines)
Catch Ya   

Rudolph Hart

I'd have given a weeks wages to be there when that t28 was whizzing around with the os20 in it.I'm to young to be fiddling with my saitos re performance right now but look forward to gaing something out of reading about other peoples efforts sucessful or not,hope they are funny bring the mew gull on mate!

blw

My Feedback: (3)

Absolutely.

IslandRyan #729

IslandRyan

Thank you Sir... 

GaGeeBees

My Feedback: (23)

I've been flying a foamie T-28 parkflyer with OS .26 for at least a year. It's a great combination! I'd like to try it with a Saito .30

Rudolph Hart

Crikey here's me thinking i've got big cahuna';s it's nice to be nicely blown away guys that takes a gentle hand on the sticks and more judgement than i have most days would like to see a vid if someone has one,sounds like it's right up my alley have fun