4 Stroke Break In Tip

A little tip...

If you are breaking in a Saito, it might be a good idea to closely watch the crankcase breather for oil output. I know I always do. I had my most recent engine do some weird stuff. It ran for nearly 20 minutes without any oil coming out of the oil breather. I knew something was wrong (I think the breather tube was clogged with assembly grease or something), but after I picked up the RPM's it seemed to correct itself. The engine was also making "noise" during the dry period.

The engine in question seized the rod to the crank on the second flight (lucky it was in an inside bottom!).

For the second engine (the replacement) I filled the bottom end of the engine full of run in oil. I think this might be good practice in the future, just to be safe. I think Zambelli recommended something similar.

I have two that have yet to be run. What are you using for "run in oil"? Thanks, Ty

Hi 'zilla,

One thing I do know, 4-Stroke engines are messy. The 56 I've been running for about 2 years (the oldest 4 stroke I have) just puts out incredible amounts of oil. It has about 500 flights on it (gross guess, could be more) The whole nose of the plane is covered with oil after a flight. The engine runs great and after every flight I'm glad the inside of the engine compartment is epoxy coated and the outside has urethane. That's a lot of oil.

Godzilla,
My secret weapon has arrived. I just got home from the Albany contest. Did you talk to Steve about a part for this weapon?

>Godzilla,
>My secret weapon has arrived. I just got home from the
>Albany contest. Did you talk to Steve about a part for this
>weapon?
>
>Gordy

Secret weapon? You better spill the beans or else!! A lot of old time laughs concerning "secret weapons" stuff. I remember back at Flushing Meadows New York in the 70's, the big secret weapon was rear moment arm length. When a guy wouldn't tell you his rear moment arm length,we would all yell out, "he's got secret moments".

>Secret weapon? You better spill the beans or else!!

Saito 72 + 10

How do you like it? Does it vibrate more? Is the fuel draw better? It is interesting to note that with all of the developements in 4 stroke technology, when it is time to pump out patterns, it is back to the Saito. A good basic design done well!