AJ Sun

Hi Jessy. Ya It's leaking at the head. It has the brass.round disc. It's fine. The problem is ar the intake nut. It's leaking for sure. I ordered from Horizon 120S but the intake and exhaust seals metal ring is to small. For it to work on my fat head. Today I found out I got Termites. All ahead stop on my Saitos. My 180 also needs an overhaul. Single it has the venturi. I run caster and she needs to go into the sonic cleaner. Never had it apart. Vintage. I bought it in maybe 94 the hobby shop had it for years and it never sold. Several Saito 150 parts fit the 180. Gaskets are no problem but the O ring on the carb just might be an issue. My 120 is a D series. Don't recall my zeros one 180. I've been powering my Sig 1/4 cub. Might put it on my AA Industries Champ it's also 1/4 scale. Never inverted a Saito. AJ.

Glowgeek

AJ, AFAIK the intake and exhaust ports on 120,150 & 180 engines have 14mm threading. HH may have sent you the wrong parts? I'll check my Fathead for thread sizing tomorrow and report back.

Check the seal of the complete intake tract, with carb removed, by applying vacuum to the intake pipe. If it leaks down it could be a bad aluminum intake washer, a cracked intake tube or a leaky intake valve. The junction between the carb and intake tube uses an oring. If it's in good condition, properly sized and tightened it won't leak.

In a pinch an easily fabricated thin paper washer/gasket on the intake tube/head junction can be used. It's a low heat area.

AJ Sun

Hey Glowgeek thanks for the post I ordered the metal gaskets for the 180. I thought I ordered for the 150. Checked the numbers, I was able to file the outside circumstances and that fixed that. The plastic piston retainers worked just fine. Having lots of rodent issues now so I had to back off my RC stuff. Been rebuilding my left wing on my Champ. So all that stuff is on hold. Maybe doing a sale of all my stuff I just don’t use any more. Been cleaning and repairingAJ.

1200SportsterRider

AJ, Horizon's Engine Code for the Saito 180 is OO, you should receive this gasket set.

the Wasp

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I posted this a long time ago. thought I would post it again.

BarracudaHockey

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Any video of that thing flying off water?

FlyerInOKC

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I wonder how long it takes to assemble after getting to the field?

1200SportsterRider

A brief flight, the one above has 12 SO 62-V's on it. The full scale one was powered by: Powerplant: 12 × Siemens Jupiter 9-cylinder air-cooled radial piston engines, 391 kW (525 hp) each, they were prone to, to overheating. Only three were built.

BarracudaHockey

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I meant water flying the model LOL

That's cool though.

Jesse Open

That plane was on display at the Toledo RC Expo wuite a few years ago. (Or perhaps one exactly the same).
Very impressive.

FlyerInOKC

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The model could be built like my Sopwith Baby project, it looks like a float/boat airplane but it's strictly designed to take off and land on land. My Sopwith Baby project will use a three wheel dolly for take off and land on the float in grass. The floats are NOT water tight or have any type of material inside to add to buoyancy.

1200SportsterRider

That is a great looking plane,someday I want to build biplane, now that I almost have three FA 30-s (H)'s I can.
Below are two shots of the Saito 30 cylinder after about two minutes of Soda Blast. The thing is a real soda eater but made the job easy.





The Bristol Spadport from OSMW

1200SportsterRider

The Soda Blaster is the "nomical" model but did a great job, the brass slug kept the cylinder from blowing away, even as precisely as the slug fit in the cylinder, soda still got inside the cylinder. I could not use the fitting that came with the blaster, but I had one that was perfect.

FlyerInOKC

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I built the original Ken Willard design but I have been thinking about buying this kit for sometime. I finally found to TF GE Bonanza kit I have been dreaming about. Should be here in about a week. It will either get a Super Tigre .75 with in cowl muffler or a Saito 100. I have the ST already so I will have to find the Saito if I go that way.

1200SportsterRider

Well, the color difference is not worth worrying about, me thinks.

AJ Sun

I guess you can go on E Bay to find a Saito. Prices on a new model is pretty high. Can't really afford it. A used model can bring as much as a new engine. Some have never had a run usually out of a pawn shop or a hobby shop floor model. Some parts are hard to come buy. Still waiting on parts for my early 120 D case. Always been a nice running fat head and parts are still out their. I use a sonic cleaner on my over hauls. Got it at harbor freight. Nice unit, parts really come clean the ad stains usually take three cycles. AJ

FlyerInOKC

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Looks beautiful to me!

Glowgeek

Looks good, Dave. I'm a little surprised that the soda basting didn't remove the dark gray oxidation spots. Hmmmm

I'll bet a light coat of clear gloss lacquer would make the cylinder and case sheens match closer.

Jesse Open

Fine job Dave.
Have a look-see at this system.
https://www.cerakote.com/shop?msclki...emp%20Coatings

the Wasp

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it's a cute lill-sucker. that little case make's the cylinder look huge LOL

Jim

1200SportsterRider

Thanks all, I made those little brass plugs on the lathe, the exhaust plug even is threaded at 9mm x .75, the intake plug is a slightly draggy slip fit into the pipe hole and the actual intake port. Fun can be had in the most unexpected places.
Those coatings sure look nice.
PS: there is actually a place in Fredericksburg that is licensed to to Cerakote: https://www.ssgtactical.com/

the Wasp

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the Mach 5; I don't know if it's real or not. but here it is,,,, maybe.

quarderhorse mach 5 plane - Google Search

Jim

FlyerInOKC

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Looks like it is flow remotely!

1200SportsterRider

I can't see any oxidation spots myself.

N1EDM

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I have to agree with FlyerInOKC about being flown remotely. A human pilot could never made decisions fast enough to control that by hand

Bob