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Title: Rd400 main axle
Post by: RDSingh on June 19, 2020, 03:14:40 PM

Guys, I have started to rebuild another rd400 motor. So started with the transmission first. Disassembled the main axle, found this. Is it normal???

Title: Re: Rd400 main axle
Post by: Alain2 on June 19, 2020, 03:27:54 PM

It got hot. I have seen worse, a gear was friction welded on the shaft! :eek:

Title: Re: Rd400 main axle
Post by: Yamaha 179 on June 19, 2020, 04:46:25 PM

I have replacement gears and shafts if you need some.
Lyn Garland

Title: Re: Rd400 main axle
Post by: RDSingh on June 19, 2020, 05:24:07 PM

Quote from: Yamaha 179 on June 19, 2020, 04:46:25 PM
I have replacement gears and shafts if you need some.
Lyn Garland

thats great, looks like i might need some parts. let me check the condition of drive axle, will pm you.

Title: Re: Rd400 main axle
Post by: SUPERTUNE on June 20, 2020, 08:13:30 AM

Every RD that gets an engine rebuild in my shop, ALWAYS get the shafts stripped down...RD's will gall the shafts and gears with run only 400-500 cc down on oil every time...and we all know when RD's are old they leak. Very common problem.
Chuck

2 STROKE WORLD .net

The 2-Stroke Garage => Turning Wrenches => Topic started by: RDSingh on June 19, 2020, 03:14:40 PM