RotorMotorDriver

iTrader: (1)

Well, I was sitting around my house, looking at a RB dual sheeve main pully online and thinking I wanted one. Well I went and looked under the hood of my car, and I noticed that I could "in theroy" take a hacksaw, and hold to the pully while the engine was spinning and cut off the extra 2 sheeves that I wasnt using. Well, after deciding to do that, I went in to my shop, found my extra pully to check that I wasnt gonna cut through anything important, and i noticed that there are 4 bolts on the front of the pully. I took them off, and found out that all the pully pieces seperate from one main piece that the 3/4" nut or whatever holds on. Anyway, knowing that nothing was gonna get messed up by taking these off (I remember reading something on MazdaTrix about taking off the main pully and messing up bearings, but since I wasnt loosening this main nut, nothing would happen), I took off the 4 bolts, took off the extra 2 sheeves, cut the bolts a little shorter to make up for the lack of the extra pullys, put the bolts back in...VOILA!! 2 sheeve main pully .

~T.J.

someone82

You don't even have to put the 4 bolts back in. Removed the ac pulley when I put in my new motor.

Look allot cleaner doesn't it with out the third ring on there. Thanks too manntis, our motor's look awesome with the dual belt pulley!

matt

Felix Wankel

Um, if you don't put the 4 bolts back on, the pulley will come off of the hub.

someone82

really.. hmm i think my flu is affecting my memory . I think I'll go make sure they are still in there then..

matt

Felix Wankel

Well, it may not come off, but it sure would slip like hell on the hub!

eddierotary

iTrader: (7)

yep felix is right, those four bolt hold the puley in the hub.

diabolical1

iTrader: (3)

not only will it slip, but on some engines, there's no lock notch on them and if you don't mark where the holes line up ... you will be "fooked" if you ever take the distributor out for any reason. so be careful ...

Felix Wankel

Also I don't think the old pullies have an offset hole like the 86+ ones.

RotorMotorDriver

iTrader: (1)

Yeah, so anyway, am I the first one to think of this? Why didnt I find a post on this when I searched? Has anyone else seen anyone do this?

~T.J.

Felix Wankel

I've been doing it since I was 16.

someone82

Like I said I did it. The bolts are in there too hehe.. Sorry bout that being sick doesn't help my mental abilitys.

matt

Felix Wankel

Actually, I've left one on. My GSL-SE had power steering, and I kind of like it. So I left it on there.

These are the last ones I've done that to.

RotorMotorDriver

iTrader: (1)

Well damn it...Why didnt anyone tell me!?!?!? I actually thought about shelling out the money for a RB unit . Oh well, I figured it out .

~T.J.

diabolical1

iTrader: (3)

been doing it since i started building engines in 1994

BadAssRX-7

the early fb didnt need the 4 bolts but the 83?-85 need the bolts

Manntis

Looks great! nice original thinking, too

RotorMotorDriver

iTrader: (1)

Thanks Manntis. Thats the kinda response I was hoping for .

~T.J.

Rx7carl

The RB pulley is smaller than stock. Its advantage is that it underdrives the accessories.

REVHED

I thought it was just common sense...