briangp

Was recently given a Zenoah G20... it was dumped in, so I've ordered a new crankshaft. Its bent a tad.

My question is, how do I seperate the hub from the crankshaft? The guy I got it from has already broken the rest down. Also, which way does the head sit on the piston? Theres zenoah on one side, and EWD on the other... which is front?

Thanks!

spaceworm

If the G20 crank and prop shaft are like the G23, the prop shaft screws into the short stubby internally threaded crankshaft. It seems unlikely that the crank itself is bent. Perhaps only the prop shaft which costs like 6 or 7 dollars and is very easilly taken out and installed, is bent. Just a thought that could save time and money for you. Good luck.

Regards,

richard

w8ye

My Feedback: (16)

If the engine turns over stiffly, the crank is twisted inside

tryan02

On an electronic ignition thats true magneto not so I thought my crank was bent on My G26 but after I removed the flywheel it was fine. I learned a few lessons on my G-26 rebuild #1 most important is make sure the screws in the carb butterflies are tight. They do a lot of damage when they get sucked into the engine.

briangp

Pretty sure the crank is bent at the threads to the hub. Its pretty apparent by the angle of the bend exiting the crankcase. Guy who gave it to me is pretty positive as well..... It's not really stiff to turn over, though it seems to bind a tad at the bottom and top compared to what I believe to be normal.

Thanks for the help... guy who hooked me up is also offering to help me rebuild so I think I'll be good now.

w8ye

My Feedback: (16)

It may pay in the long run to have Ralph check you crank for a twist?

karolh

Excellent idea, as it's always better to be safe than sorry.

Karol

briangp

How do I get ahold of him?

w8ye

My Feedback: (16)

RCIgnitions
1783Witehall
P.O.Box636
Williams,Arizona86046
UnitedStates

He is Antique on here

http://www.rcuniverse.com/community/...m=1&memid=7880

Iflyglow

My Feedback: (79)

Throw a Frank Bowman Ring in there while you are at it. You will not be sorry.

karolh

Or contact him by phone at 928-220-5721

Karol