[lunatic]

I just bought a hot rod crank and was told to run tz bearings on both ends. So my question is does it matter which way the inner race with the shoulder goes on? Im guessing it dosent really matter?

 

[camatv]

i put the ridge to the inside also i have noticed i think they need a gap spacer on them or the crank will slide left and right and possibley touch the crankcase? with dual tz's and NO inner pins to keep the crank from floating around? maybe i am wrong just something i noticed the other day..

 

[lunatic]

So i cant run dual outer tzs with out pinned center bearings?

 

[camatv]

i have a few engines with dual tz's and i use a small spacer against the tz to keep it centered in the case. i dont know just how necessary it is but after putting the motor together and watching th e crank slide left and right i thought HMMM that can't be good. but mostly i think the drive side tz is good enough unless your running a HIGH cc motor.. ?

this is something i dont know much about but just my experience and what i have noticed. maybe a day to day builder has better insight on this

 

[lunatic]

QUOTE (camatv @ Aug 15 2008, 12:33 PM) index.php?act=findpost&pid=8303i have a few engines with dual tz's and i use a small spacer against the tz to keep it centered in the case. i dont know just how necessary it is but after putting the motor together and watching th e crank slide left and right i thought HMMM that can't be good. but mostly i think the drive side tz is good enough unless your running a HIGH cc motor.. ?

this is something i dont know much about but just my experience and what i have noticed. maybe a day to day builder has better insight on this


Ok now you got me worried. How do you center a crank with tzs and no pin (oring bearing)? Is there plenty of room so the rods dont bind up in the pistons? Im putting in straight cuts and it should float even more. Or should i just drop the crank in and where it lands is its new home lol?

 

[bigboybanshee]

This is just information I was told, so take it for what it's worth, but when I had my twister crank rebuilt a couple months ago, Louie recommended I do NOT put TZ bearings on both sides. For the load side, sure, but for the other side he recommended a stronger, stock style bearing, said the TZ wasn't (technically) designed for both sides...he said you could do it, but it wasn't what he recommended...given that the man rebuilds cranks for a living, I took his advice, no questions asked...and it saved me some money

 

[FireHead]

QUOTE (bigboybanshee @ Aug 19 2008, 12:27 PM) index.php?act=findpost&pid=8595This is just information I was told, so take it for what it's worth, but when I had my twister crank rebuilt a couple months ago, Louie recommended I do NOT put TZ bearings on both sides. For the load side, sure, but for the other side he recommended a stronger, stock style bearing, said the TZ wasn't (technically) designed for both sides...he said you could do it, but it wasn't what he recommended...given that the man rebuilds cranks for a living, I took his advice, no questions asked...and it saved me some money
I am going to go with Louie on this one................

 

[99banshee]

QUOTE (FireHead @ Aug 20 2008, 09:23 AM) index.php?act=findpost&pid=8715I am going to go with Louie on this one................
We run a TZ on the PTO side and Maxloads on the flywheel side.

 

[okbeast]

QUOTE (99banshee @ Aug 21 2008, 08:34 PM) index.php?act=findpost&pid=8881We run a TZ on the PTO side and Maxloads on the flywheel side.

Do the maxloads have the pins?

 

[badassbanshee479]

QUOTE (99banshee @ Aug 21 2008, 09:34 PM) index.php?act=findpost&pid=8881We run a TZ on the PTO side and Maxloads on the flywheel side.

this is what I have been told to do also!

 

[bansheestang]

[quote name='okbeast' date='Aug 21 2008, 09:17 PM' post='8888']
Do the maxloads have the pins?


Nope they use ball bearings just more of them then stock and a c clip around the outside for centering but some cases dont have the groove in the upper half so it has to be removed from the bearing.