NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   Main Bearings (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/main-bearings-47133/)

fc3sboy1 04-08-2005 11:42 PM

hello. im gettin set to put the main bearings in the stationary gears on the fd gears and noticed there is no tangs on the new bearings.

is this normal am i to belive the bearing is just supost to hold via press fit or do i have a mis manufactured set of mazda factory bearings?

C. Ludwig 04-09-2005 04:27 AM

FD bearings are retained by a screw through the gear with a nub that pokes through one of the oil ports.

fc3sboy1 04-09-2005 11:47 AM

thats the thing, i have a s6 set of gears and there is no screw holding the bearing in, the old bearings where tanged also have a set of s6 re gears wich are worn heavy and not wanting to run them are also tanged.

anyone have a pic of the frount and rear gear so i can see what the hell im workin with here?

onefastrx7turbo 04-09-2005 03:08 PM

I dunno.. ALL FD and 20B main bearings are held in by set screws....maybe yours arent fd?

fc3sboy1 04-09-2005 04:56 PM

thats whats odd, one set came from a rew motor the other set came from a re motor both jdm motors, both frount gears are the larger thrust area and definatly not fc the rear all look the same.


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