cloudancer03

My Feedback: (22)

I am flying or will lol a seagull laser 200 with a satio 150.I bought a new prop.is a 17x6 ok.I figured it will run about 9000 rpm's.its an apc..

w8ye

My Feedback: (16)

It should be OK. I run a 16-8

RC Specialties

Hobbsy, The APC is a heavy prop that would account for some, but that does seem low for that prop. I am running a 15x6 APC around 9300, so maybe it is not low. The Master Airscrew is a little lighter and they flex more. I have not tried the MA with the TurboHeader. I have a 16x6, I will try it.

Jim

JustErik

Hello all. I tried searching the thread, but must not have used the right words. My Saito 100 suddenly won't advance past 1/2 throttle without going lean and quitting. It has run flawlessly for about 15 gallons with only occasional valve adjustments. While at the field, I checked all the fuel lines and found no leaks. Now, back at home, I've pulled the engine and carb and see no apparent problems. I have a new carb gasket set which includes FIVE rubber o-rings and one metal washer. I don't seem to have an exploded view of the carb in my stash, but surely someone here must know where all these go. Of the 5, I've located the two big ones (one on each ends of the manifold), the metal one at the top of the manifold and the little chubby one on the low speed needle. Do the other two on or near the high speed needle? One is very fine and seems like it would fit on the threaded portion where the high speed needle goes and the other looks like it would fit on the high speed needle itself.



Thanks,

Erik

w8ye

My Feedback: (16)

The skinny one goes behind the ratchet spring and nut that holds the spray bar in the carb body

There is one that goes inside the brass threaded portion of the needle valve body

There is a LS needle restriction in your carb causing it to shut off at part throttle or your fuel is old

JustErik

Thanks w8ye, I appreciate your help.

Erik

AMA234

My Feedback: (3)

Thanks for all the help guys.

Maybe I'll just stick to the Jet forum as they actually offer assistance to outsiders. With this thread having over 10k posts I figured people would offer up some info on this engine. Maybe I should have started this post like: HI! I have a Saito 45...

So long.

Hobbsy

My Feedback: (102)

What would you have us to say if we have no knowledge of that engine. I could make up something.

proptop

My Feedback: (8)

Hey Hobbsy...there was a guy here on RCU who knew ALL about them...and any other model engine known to man... remember loughbd?
He's over on RCG now as USNA71

ama234 you could go over to RCG and ask your question there perhaps?
Not trying to be a wise ***** here...but loughbd was banned here on RCU...and theoretically can't respond.
Peace [8D]

Hobbsy

My Feedback: (102)

Prop, I did know that but was hesitant to say the name of the other site. I thought it might be a no no.

rlmcnii

My Feedback: (3)

It is worth precisely the amount for which someone is willing to write a valid check.

The unmentionable site is both elucidating and harsh. You have that engine advertised all over the world and you will find out exactly what it is worth.

Let us know!!!

w8ye

My Feedback: (16)

The guy I remember is better described as a guy that would try to differ with his shadow. He can stay over there. They need him.

alfredbmor

My LHS does not carry Graupner props.
Where do you use to buy them?

swixtt

so, how much did you pay for it in the first place? if it just arrived magically in your hands then i'm sure you'll be able to figure out a fair price to someone who is interested. if it is worth a lot to you, then keep it.

this thread is awesome... it has helped SO MANY people starting out in 4 strokers.... i haven't seen too many threads where they ask for prices on a vintage engine, and then get p***ed when people don't respond to it. you'd think you could figure out that if there are so many people subsribed to this thread that i'm sure people read it and if they didn't have anything to respond with, then, well, they didn't respond. i would have to say a little common sense is in order here. there are questions that sometimes get overlooked but it surely isn't because we are ignoring you. i've seen others ask a couple of times if it doesn't hit the radar right away.

i say stick it on your ebay site and be happy with trying to get the MOST out of it. that is definitely the right attitude. good luck to you, may the karma come back on you!

Hobbsy

My Feedback: (102)

honny-lobby.com

Hobbsy

My Feedback: (102)

hobby-lobby.com

http://www.hobby-lobby.com/grprop.htm here to be more precise.

RC Specialties

Dave,

I thought you found a new hobby sight, for a moment.

Jim

Hobbsy

My Feedback: (102)

Hey Jim, if that was honey-lobby I might be onto something.

GaGeeBees

My Feedback: (23)

I'll give you $50. That's what it's worth to me. That help?

alfredbmor

Thanks Hobbsy!!

Michaelh

My Feedback: (4)

Jeesh and I thought I was the only A-hole here.

rexracer

I broke in my .40a today. What a little jewel it is! Ran it at the factory "rich" setting (factory LS setting, 2 1/2 turns out HS) with glow heat for the first 10 mins, then upped it to 5000 and took of the power to the glowplug and ran the rest of the break in, per Hobbsy's procedure. Break in prop was a MA GF-3 11x6. After 40 min. I peaked the high speed, then leaned the LS for a good idle and transition. I left the LS alone for the rest of the tests, and richened the HS and peaked for all props tested. Here's what I got.

Temp 70f
humidity 60-70% (?)
wildcat 15% 18% oil-syth/castor blend

Top Flight Powerpoint 10x6
Peak RPM 10,500
idle 2800-3000
I was supprised at the load this one put on the engine. Didn't like to idle low with this small, light prop.

APC 11x5
peak RPM 10,300
idle 2200
static thrust 4lbs 5oz.

MA GF-3 11x6
peak RPM 10,350
idle 2200
static thrust 4lbs 7oz

MA GF-3 11x7
peak RPM 9350
idle 2200
static thrust 3lbs 11oz
Though this one loaded the engine quite alot, it may unload in the air and be a good prop for flying.

MA K series 12x4
peak RPM 10,200
idle 1800-2000
static thrust 4lbs 11oz
The engine really likes this one. Great thrust #s. I may start with this one on the beaver. had it idling at 1600 for about half a minute before it started stumbling. 1800 was a little rough, but good on the stand. 2000 would be good to fly, I think, though I'd probably set it at 2200 or so.

MA K series 12x6
peak RPM 8500
idle 1800-2000
static thrust 4lbs 4 oz
Too much load I would say. I'd be curious to see if this would unload to a descent RPM in the air. Spoolup was slow.
I ran the fuel out of the tank with this prop. It would turn at about 7500 at half to 2/3rds throttle pretty easily, and only seemed to start straining to get the last 1000RPMs. It ran about 4 or 5 minutes at 7500 RPM to burn the rest of the tank, and the engine was cool enough to put my finger on the side of the cylinder for 30 seconds before the heat would bother me.
I wish I had a 12x5...thought I did, but it turns out it was the 12x6. I may order a couple of graupners to try.

Here is a pick of my new baby, and the test rig I ran her on, and the props tested.

proptop

My Feedback: (8)

Have any of you had to replace a jug on a 1.25?
I offered to do so for a friend, and he brought over the engine and parts...and as I compare the new cyl. to the old, I see that the new replacment is substantially larger in the fin(s ) area and they are spaced further apart.
The new jug is part #SAI125a01A Cylinder (left )

All of the parts swapped over no problem...just a minor re-adjustment of the valve lash...(as could be expected )
Must be a re-design or something?
Anybody else notice this?

AJsToyz

Hey Hobbsy , how many engines do you own ?? Its funny because I've seen you all over the place on the boards!!

Andy

Michaelh

My Feedback: (4)

Rexracer WOW! That test stand is to die for! [sm=thumbup.gif]