William Robison

My Feedback: (3)

Riot:

What you have is a classic symptom of failure to feed fuel in a high G maneuver. A header tank, even as small as two ounces should cure the problem.

Welcome to the madhouse of Club Saito – I’ve enrolled you as member number 349.

Bill.

ini

Here is my Saito FA-82A in front of Kyosho Oxalys 50.

Saito is exceeding my expectations: running and starting very well since very beginning. Easy to operate. The supplied plug is also fine even though I thought of replacing it with OS F before running; no need for that.
Power is excellent for an 2.2 kg (<5 lb) pattern plane.

This is actually my second Saito. The first one was a FA-40 from early 80´s. A lot has changed since then, the looks is similar but power and usability is totally different in a positive way.


Iiro Nikkila
Finland

William Robison

My Feedback: (3)

P-80:

The FA-170R3 is 186 mm diameter, the FA-325R5 is 220 mm.

Bill.

dubd

gjeffers - I have the tank against to firewall, so it is in the forward most position.
William, I did a quick search for "header tank" on RCU and noticed a lot of heli guys using these tanks, but not many plane guys. Is this a common solution for this problem? gjeffers stated that he can do blenders without loss of power and it doesn't sound like he is using a header tank.

bfreee

rvm, If the iron bay works the same way the cline does & I'm sure that it does, your pitts muffler (If its a slimline) probably wont work. only reason I say probably is because you are using one a 100 saito. Maybe that one develops pressure in the exhaust. One things for sure, if your muffler doesn't make any pressure, it will not run a cline or an iron bay. I'd call them & ask them how much pressure thier system needs to operate. I can get about 1 psi out of my 180 inverted with a slimline pitts. It doesn't work. Have to have 2-12 psi. Let me know if you talk to them. It seems Emvin has something thats working.

bfreee

This is the same problem that I'm having that I've been talking to Emvin about. My 180 is in a QQ 73inch Yak. Same exact problem except I'm not as good at doing those manuevers. I still try though. My engine is dying too. What muffler are you running & how far back is the tank from the engine?

bfreee

I realize that the cline will not increase the power of the engine, I was refering to the ongoing conversation I was having with emvin about my stock muffler not making enough pressure to push the fuel, so the engine is starving as you alluded to. I believe the cline will make my engine get the fuel it needs to get the power. When you idle down with a normal system, you lose all tank pressure & if you have the tank 8 inches back from the engine you are going to have problems, so my point was that the cline might help because it will hold the pressure in the tank once it gets there. I did block off one of my pipes on the pitts but it only brought the pressure up to about 2 psi. This would probably get me by, but you have to hate restricting the exhaust. I'm trying to see if the saito pump system is available it suppose to be under part # SAI220a102, but i haven't had any luck with that number.

w8ye

My Feedback: (16)

The 220 pump deal was a system that included a larger carb as well as a crankcase vent filter. Some people have them but to look on Horizon's site there is no picture yet. $114.39 [SAI220A150]

Here's part of it. http://www.horizonhobby.com/Products...=SAI300TTDP102 But this is out of stock.

But there are other parts. In the picture is shown the check valve and crankcase breather filter.

p-80

My Feedback: (1)

how do you think a saito 170 radial would be on the kmp september fury for those of you that know the plane would a radial be to heavy

gjeffers

you guys with the cline-180 probs, i dont know how far from the fuel inlet nipple you have the cline regulator mounted, but just incase you missed the statement to mount the regulator as close to the inlet as possible im here to tell ya it makes a lot of difference if your line between them is over 1.5inches.
here is a pic of my setup that worked well.

it must be close like this to work.

hope this helps maybe

RVM

I'll try it first. I think it will work out that I will have about 1"- 1.25" between the carb inlet and the output on the regulator.

Who or what is Emvin?

Hobbsy

My Feedback: (102)

When I ordered the Keleo for the .90 triple it did not occur to me that the outlet pipe would interfere with the nose gear, lesson learned. I talked to W8YE about it yesterday and this is what I came up with. It may still oil up the wheel but no biggy. Next time I'll get the outlet pipe placed at the 7 o-clock position.

EMVIN

RVM, if you read back a page or two you will find me ....EMVIN.... CLUB SAITO #237.... BFREE and I were disgussing different options available for our set up. Saito 180 on a somenzini yak 54 73" he is using a cline reg and I'm using a Perry pump.

Talk to you guys next week I'm going to Jamaica in the morning......YA MON!!!!

airboss82

My Feedback: (2)

Bought new bearings for my Saito 82. Got the rear bearing onto the crank ok by heating it. Have tried several times and can not get the front bearing into the case. Have heated the case to 275 in the oven and froze the front bearing overnight, but still it won't go in. Am I missing something? How hot can I heat the case. I have heard of using a torch to heat the front of the case, but am concerned about getting it too hot.

Anyone with another secret? This engine should have been flying a couple weeks ago.

Thanks,

Jerry

dubd

bfreee, I am using a slimline muffler and my engine is in the forward most position. The last deadstick pretty much cost me my plane and I doubt I will ever put another saito into a plane i plan on pushing to the limit. Now I'm considering building a 27% ultimate with a DA-50.

blw

My Feedback: (3)

Jerry,

You may have to go over 300, to maybe 350 to get it out. Whack the end of the crankcase on some wood to shake it loose.


I removed the original backplate from my .72 and found it deformed. It is the new design over the original. Not only did the screw heads dig deeply into the plastic, but it deformed the flange to where it is cupped up between each screw hole. I know that I never cranked those screws in that hard! The holes in the new one are larger. The original holes were small enough that that screws cut grooves in the plastic. The holes in the new one are large enough for the screws to drop through easily.

RGN01

Can I join in too, please?

FA-91 in a Ripmax Bossanova
FA-40a in a Tiger Moth
FA-45 waiting for a new home!

Thanks.

Richard

RVM

Just tached my .91 again. I got about 9700 with a 14x7 APC using 20% nitro/ 15% oil. I put it around 9300 to fly with. I was able to get a super smooth idle at around 1700, but if I punched the throttle it died. I think the low end is too lean. Going to work on that later when I get some time.

I noticed sometimes the RPMs will waver quite a bit on this engine while I'm trying to get it adjusted. When I was trying to get a peak yesterday it sometimes went from 8900 to 9600 RPMs without me touching a thing. Sometimes it would smooth out though, and I would set the needles during this time. Is this normal?

blw

My Feedback: (3)

RVM-

I don't know about the .91 but 1700 RPM seems low. I have a Saito that idled at 1900 one day for a lot of flights but did die on short final, so I bumped it back up.

If I hear that surging at mid to full throttle, I always richen the low speed needle valve 1/16 of a turn first. Sometimes more than that.

Thunderchild

Footnote for Bill Robison

Bill,

My friend's 125 engine finally quitened down with the noise now only a faint whisper.

New problem - when the noise went away, so did 1,000 RPM!!!!

No amount of troubleshooting has been able to restore the lost RPM. He has finally admitted defeat and is sending it back to the shop under warranty. As I said earlier, going to the shop is a last resort down here in Oz. They have quoted him six to eight weeks MAYBE. [:@]

Will keep you posted on what they determine the problem to be.

TC

RVM

What would be considered a good idle then? 2000?

scratchonly

Bill

I bumped the nose of my saito 80 doing a rather nice cartwheel. I checked it out after removing it from the plane and the bearings felt rough. After tightening down the prop it felt normal again On removing the prop it still felt fine. Did I move something and fixed it by tightening the prop. Ran it on the bench for awhile and it still feels OK????

bfreee

Sorry to hear about the plane. Nothing is more frustrating. However, I have no doubt that the problem is not the Saito its that Pitts on the SAito. I just went through this. I just found out that I had to do what another gentleman suggested, which I considered but did not want to do. That was to restrict the outlet pipes of the pitts. My pitts only made 1 1/2 psi at full throttle (9krpm). The stock saito makes over 5 psi at that same rpm. I assure you that if you use your stock muffler or restrict the pitts down pipes the proper amount (which is rediculous to have to redesign the wheel), you will not have that problem. Check it if your not sure. T into the pressure line from the muffler with a low pressure gauge. you'll find the pressure is non-existent with that pitts.

RVM

How did you go about doing this? I hope I don't have to. :/

Kimhoff

My Feedback: (22)

I have a FA-120 that I broke the main case on, would anyone have a parts engine that they would be willing to part with the case?

Please PM me if you have anything.

Thanks