951 Di Rebuild - Opinions?

[330xi]

Long story short, my RX-DI is just approaching 200hrs on it. Original engine, and I've been planning on doing a preventative rebuild before the season now that I live lakeside at my new apartment and it'll get near daily use. I've done some searching as to what cranks/top end kits people prefer, the big 2 I've seen for aftermarket being SBT and WSM, or OEM. Reviews for all have seemed relatively the same from what I've seen. Just curious on some other opinions on kits!

Also will be doing the rebuild 100% myself. I've done multiple rebuilds on other Rotax motors and a few 4 stroke motors. Are there any other small items I might miss that are 951 DI specific, that I should replace while I'm in there?

 

[mikidymac]

No OEM cranks available anymore.
I would also do the balancer, air compressor and fuel filters and send the air and fuel injectors out for service.

 

[330xi]

No OEM cranks available anymore.
I would also do the balancer, air compressor and fuel filters and send the air and fuel injectors out for service.

Are there any site sponsors who do injector cleaning/service? Would greatly prefer to help out guys on here

 

[etemplet]

Long story short, my RX-DI is just approaching 200hrs on it. Original engine, and I've been planning on doing a preventative rebuild before the season now that I live lakeside at my new apartment and it'll get near daily use. I've done some searching as to what cranks/top end kits people prefer, the big 2 I've seen for aftermarket being SBT and WSM, or OEM. Reviews for all have seemed relatively the same from what I've seen. Just curious on some other opinions on kits!

Also will be doing the rebuild 100% myself. I've done multiple rebuilds on other Rotax motors and a few 4 stroke motors. Are there any other small items I might miss that are 951 DI specific, that I should replace while I'm in there?

You probably won't miss it but replace the bendix bearing in the engine case. That'll ruin your day.

 

[jhjesse]

I have had some good luck with WSM in the past.
Be very careful with the case coolers as they are plastic and can break easily.
While the engine is out pull the oil tank and seal the leaky seam.

 

[etemplet]

I have had some good luck with WSM in the past.
Be very careful with the case coolers as they are plastic and can break easily.
While the engine is out pull the oil tank and seal the leaky seam.

Is there a quick good way to seal that seam? I'm tired of sealing it with my soldering iron. That reservior is pure garbage. I have a plastic welding set but perhaps I need a larger one.

 

[WaarrEagle]

Are there any site sponsors who do injector cleaning/service? Would greatly prefer to help out guys on here

The only one I have seen mentioned is fuelinjectorman.com . They did mine recently and I was pleased with the turnaround and results.

 

[jhjesse]

Is there a quick good way to seal that seam? I'm tired of sealing it with my soldering iron. That reservior is pure garbage. I have a plastic welding set but perhaps I need a larger one.