Is the 3W 100b2 the older version of the 3W 100s or the newer one? Or do I need a serial # from the engine to find that out?
Thanks

Which cylinder is forward?

What color is the carb manifold adaptor block?

Weighing will also be a tattle-tale. New ones weigh 5lbs.-9ozs...

see, I don't know yet. I haven't seen the engine.

Standing in front of the plane, staring at the nose cone... it appears that the right jug is forward

Here's the carb....

Get the serial# There is usually a year in that sequence of numbers_bob

So if the right jug is forward looking at it from the front of the model or sitting in the cockpit the port/left side is forward and you have a red manifold adapter under the carb it's a standard or original version 3W-100, IMO...

Alright...thats just what I needed to know! Should be pretty sweet.

Thanks Mike for the specs on the engine and Mr. Glavin for the info.