[TZ Bearing]

What brand is the TZ bearing stroking?

 

Using TZ bearings causes the crank to float side to side inside Banshee cases. Using the helical gear adds lots of stress on the crank.

 

When Yamaha built the TZ racing motors in the 70's. Yamaha had the center bearings clipped in the case to keep the crank from moving. Yamaha also used straight cut primary gears on all race motors.

 

I don't use TZ bearings. I use 11 & 13 ball maxload bearings on all my stroker cranks. Since I'm a 1/4 mile drag racers. For extra insurance I do have my cases grooved to clip center crank bearings.

 

Look at the picture. Shows where to add the clip groove in the case. My machine shop does the work.

 

Just wondering who did your machine work for you. Thanks Mike

[banshee straight cut gears]

Looking at purchasing straight cut gears and was just wondering if anyone knows if you have to press the gear with the bushing out old helical gear and if so what is the best way to do that witout damaging it.

[TZ Bearing]

I am really curious where you all got your TZ bearings from. I"m in the process of rebuilding my bottom end and was going to install the TZ bearing with straight cut gears but now i'm starting to get a little nervous.

[tz beraing]

Just trying top get peoples input on someting. If the TZ bearing is such a good bearing why not just run two of them instead of the tz and maxload combination.