In NZ we test the end play of the crank every 10 -15 hrs on these rotax 2 stroke engines.. Get two spark plugs smashout the ceramics, on one braze in a 3/16 male air fitting fit plastic hose to to it on the other end fit a big medical syringe. On the other spark plug braze or weld a piece of tube the ID diameter of your dial test gauge. Fit to engine suck and push on syringe on one cylinder other has dti which move up and down showing end play of the crank bearing. Swop around measure other cylinder. Known some 582s to go 1000 hrs but they will all fail. Your 503 looks like it was running too lean but that wont have anything to do with crank failure. Should have egt and cylinder temp gauges on 277 447 and 503

WayDaGo!

With the 670, what is the max prop pitch RPM for this engine? (On my Rotax 912 I pitch my prop for 5500 RPM at max throttle.)

Wow this is scary to listen to. There’s an attitude issue here.

There are some dangerous attitudes in evidence here.

Hey, nice airplane.

So cool, can't wait to see her take to the sky!!🤘

🤘

👍

Can't wait to watch you do a vertical takeoff 🙂

You in the facebook group? Traditional fabric?

Lookin good Richard!!

Sweet little bird! Congratulations! 👍

Make sure you put in bushings for those bolts to go thru. Bolt-thru-tubing is a no no.

It's coming together nicely!

Hey! Looks like soon you'll be on your way!

Very nice improvement with the radiator. Cheers from Winnipeg.

No.

Do the wings on the S4 fold?

what engine is that?

Nice progress. Is that a Rotax 583 Red head?

Are there any hangars available over there?

You need a primer between the carbs and the engine push type works great 👍

Is that plane missing something? Like the big flat part that goes side to side.

so happy to see you lads living the dream. make sure it gets airborne!!!go on lads !!! from the UK

Looking really good!

Outstanding!!!!

Put it in the middle of your eye sight, the eagle has the fuel cap right in the middle and it’s no issue.

Great project, Just a reminder to mount your expansion tank higher than the the cylinder #1 bleeder nipple since it’s a tail dragger and during taxi and run up’s (cylinder 1 ) sits high, so that all the trapped air gets out of the system.

Keep the build videos coming!

Let’s both land there this week!

I hear a vibration right off

Not a tough build. The only weakness for ESM was the lack of resin for the glass. $1500 all in was a good price. The plane flew very nice.

Just picked one up NIB

WTH ??? 😳😳😳

Does this type of plane collapse or do you need a hanger? I keep my Trike in my garage.

Fall down go boom

Your walking around and bitching. That's good thing. The plane can be fixed.

Haa. At first I taught for a moment it’s a locomotive engine ?? The way you zoom in. Ha. To find out it’s under 12 inch the whole damn thing. People do have guts to take up that tremor engine ?? 2 cycle hmm. Bzzzzzzzz. Can’t listen that

Good to see ya back at it 👍 stay safe...

Where are ya, brother. ? Missing the videos..... ?

just like a car engine though you could not hear a knocking connecting rod before it quit? You are lucky. I know those engines have uncaged needle bearings instead of babbit bearing like an auto engine. I am amazed that someone rebuilt the top end and didn't just rebuild the whole engine at the same time.

I'm curious to know if you "parachuted" into the soft dirt. My friend says that's the safest way to land on soft ground. It's done by rounding out, slowing the vehicle down, and essentially stalling it a few feet off the ground. That way, you're forward speed is very low when you touch down. During the three I've had, I've always been able to land on roads, so I just did regular dead-stick landings. Good job being able to walk away from the incident ! That's what's important. My engine-out priorities are as follows: First, keep myself safe. Second, keep my plane safe. If I can achieve those, then I go for my third priority: stay out of the evening news! Stop by the VCUAS in Camarillo if you're ever in the area. -Joe

can you tell me the ID of a 503UL intake manifold if you have one lying around. I don't think my mikuni 34mm carbs like the UL muffler and the load from the prop, might have to get some 36mm carbs

The top of the piston is white, and that was running way too lean, it should be milk chocolate brown to dark chocolate brown, and leaded gasoline in a two-stroke it's only good for producing carbon deposits.

I want one

Always The eyes go to The onli Rock in The fiel...I know

😬

Happy to see this post. There was an ultra-lite accident yesterday up near Anza somewhere. I was thinking about you. Be safe brother.