Hello,

I've had an R/c boat before with a .15 glow engine and Im currently trying to start my .61 glow engine for my planes Break in period.

I filled the gas tank, adjusted the needle valve and hooked up the glow plug. I gave the propeller two spins with my chicken stick and the last spin made a
really loud POW sound. Really loud.....

I was woundering if it was normal or maybe some kind of back-fire or something...This engine is four times as big as my last one, so im not sure

Hi!
Do you use a silencer?

Yup...It came with the engine...OS .61 FX max

On a great planes .60 STIK

Maybe backfire, maybe not. Check and see if your prop is still on tight and then proceed onward. If your prop is loose it was indeed a backfire. If your prop is not loose could still have been a backfire.

Sounds like it was flooded
check this link for proper start up techniques


http://www.airfieldmodels.com/inform...s/starting.htm

The link is good advice. One thing to emphasize, hold the prop tightly when you are turning it over feeling for the kick or bump. I'd also suggest holding the prop blade firmly when connecting the battery to the glowplug. Occasionally the engine will spontaneously start at that point. You can get surprized and have bad things happen. I seldom use a chicken stick but usually hand flip with a heavy leather glove. The glove is not perfect protection but it will save you a lot of blood.

G'day Mate,
What size prop are you using? It may be 4 time bigger than your last engine, but it will not have a prop that is 4 times bigger, start with a 12x6.
As was previously stated, it may be flooded, but the best idea is to take it to a club field, & get help, if you don't know how to start an engine, I'm thinking you also don't know how to fly!!!

Good idea, Ill try to start it up again..

Its got a 12x8 prop. I wasnt going to fly it today, just goona run the engine through a tank or two. Im gonna buddy box with a friend after that for a while.

You may be right on both counts Alan. His only other planes were boats. Re-read post #1. He also mentioned this in another thread you may not have read.

G'day Bruce,
Yeah I picked up on the fact that he only had a boat, that's why I suggested a club & getting help.
Hope he gets help, we all know how hard it can be to try to learn, without it.

Yep, that's why I said BOTH counts.

I received some old Flying Models magazines, bought on ebaY, today. In the December 1948 issue, in the Helpful Hints column, is the exact same suggestion I gave you about holding the prop firmly and turning it over to feel the hit or bump. So this technique has been used for some 60 years. Mind boggling![X(]