Rotax Rebuild

Joe Brizzolara · Posted: Wed Jul 18, 2012 7:38 am Post subject: Rotax Rebuild

After about 37 hours run time getting ready to replace my piston and ring. How do I check the bottom end to see if it is OK. Any spec on how much play is allowed for the rod or anything like that?

Thanks

Nick Weil · Posted: Fri Jul 20, 2012 2:41 pm Post subject:

If you have 37 hours on ANY Rotax crank and you don't get it rebuilt when you put in a new top end, you are asking for trouble.
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Nick Weil
Authorized Rotax Service Center and Dealer since 2002
2004 Team USA Rotax Worlds Finals DD-2 Driver

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Eric Alexander · Joined: 19 Jun 2011 Posts: 121

Joe, I think the norm is 10 hours between top-end rebuilds with full rebuilds coming at 40 to 50 hours depending on use. So you are definently in the line for the bottom end rebuild if running the engine hard and racing competitively.

Joe Brizzolara · Posted: Mon Jul 23, 2012 12:58 pm Post subject:

Thanks gentlemen. Any advice on getting the engine rebuilt without breaking the bank?

Ray Chiappe · Posted: Mon Jul 23, 2012 1:36 pm Post subject:

It is a Rotax, so it will be more exspensive than you think Shocked

Cesar Rull · Posted: Sat Sep 29, 2012 10:33 pm Post subject:

how much is a rotax rebuild?

Since these motors are sealed, the rebuild needs to be by an authorized dealer shop?

Eric Alexander · Joined: 19 Jun 2011 Posts: 121

If you plan on running in events you'll most likely need a passport and matching seals. If so then yes, you'll need to take the motor to an authorized Rotax service center for the rebuild.

Give or take, the cost of rebuilds is roughly $300 for a top end rebuild and $1000 for a full top and bottom rebuild.