When using a bearing tool with the 17011. , you will flat spot the races and/or the balls as the inner race protrudes by .3mm

Thanks, that was the answer I didn't want to hear. Lesson learned though.

Cheers!

I know nothing of nova bearings, but I do know hardend steel, and unless these races are not hardend, I have to call BS. Try scaring a hardend piece of steel with a blund object, such as a ball bearing.... NEVER HAPPEN!!!!
Ok, maybe in a extreme nova818 vid, but not with a bearing tool....
Just saying...

It's got nothing to do with hardened steel. It's all about crushing the inner part of the bearing between the tool and the inside of the motor where the inner race seats. Kinda like if I put your head in vice and started turning the handle clockwise til your brains spill....

I had a b2 werks engine that also had the front bearing go bad within 2 gallons. The entire front seal came off of the bearing. I agree Werks are good engines and it doesn't usually happen, but even the best have problems once in a while.

Gottcha. Like I said, I don't know nova bearings. I assumed The race or balls where being comprimised by puller... MY BAD....

Nice way of putting it tho....lol

Monty knows his stuff, I wouldn't ever disagree with him even if he didn't give a reason for something. But if you look at what he said the inner race is out .3mm that means the bearing is not flat, so if you use a flat bearing tool you would be putting it in a bind, thus causing a flat spot on a bearing ball or two depending on which way the inner race moved because of the pressure of the bearing tool.

I used to work on race engines and diesel engines, we had special bearing tools for special bearings, some had lips to compensate when a bearing was off set such as the Nova bearing. This again was with race engines and diesel engines, these engines come no where near the rpm's of our rc engines. If it was important on a 10,000 rpm max race engine, what do you think about a 40,000 rpm engine is gonna be like?

At 2 gallons, I fully agree.... He stated, about a gallon, which, most guys would still be on the rich side.....

Its a possibility it will be ok but i have seen it happen at least a few dozens times when using a bearing install tool such as the hudy that has a flat face to press on front bearing

I did a lil work on mine

Absolutely agree that Mr. Houson knows his stuff. I KNOW STEEL! I get what the deal was after a couple more responses. No harm, no foul... Right?

At 2 gallons I changed my flywheel and noticed it, so more than likely at about a gallon mine was already loose or off the front bearing. I am pretty sure I didn't stop and the front seal just happened to come off when I pulled my flywheel off. Even if you are on the rich side the bearing can go bad. Just because someone may or may not be on the rich side shouldn't really affect the front bearing from going bad. At least in my mind I don't see the correlation of a rich tune = front bearing being bad

Fyi: leaving the lsn super rich will blow out front bearing very quick

He figured it was bad cause it was LEAKING. They all leak running rich.

ok