Mazda Rotary Club

General => General Technical => Topic started by: lockwood77 on October 16, 2011, 07:27:29 PM

Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: lockwood77 on October 16, 2011, 07:27:29 PM
Hey all, I\'m going to replace my alternator and power steering belts in the course of fixing the power steering pump, but I\'m not sure which belts I need. The power steering looks standard, but would I be right in saying that I need a shorter alternator belt as it appears the air pump isn\'t in place (or is it!?) See photo:

(http://ianlockwood.net/images/rx-7/engine-bay.jpg)

Anybody know part numbers or where best to get the necessary belts from? :)
Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: RobMatthews on October 16, 2011, 07:43:39 PM
your p/s and air-con is standard belt, your alt and waterpump is not standard, sorry i dont know the part number off hand i may be able to get one tomorrow if i remember to look lol

hth rob
Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: m1tch on October 16, 2011, 07:48:13 PM
Are you running a dual alt pulley or are you hoping the single belt doesn\'t slip, underdrive the waterpump and overheat the engine?
Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: philiwily on October 16, 2011, 07:51:23 PM
5PK778 is the Gates number for your alternator belt as you have over size pulleys, just a standard for your A/C, P/S.
Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: philiwily on October 16, 2011, 07:54:59 PM
Quote from: m1tch;794771Are you running a dual alt pulley or are you hoping the single belt doesn\'t slip, underdrive the waterpump and overheat the engine?

He has an FD, I run the same setup without issue.
Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: lockwood77 on October 16, 2011, 07:57:19 PM
Quote from: m1tch;794771Are you running a dual alt pulley or are you hoping the single belt doesn\'t slip, underdrive the waterpump and overheat the engine?

That\'s just the one pulley on the alternator/water pump, I didn\'t even know you could/should get a double?

Phil, thanks for the part number mate, that\'s spot on. :)
Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: m1tch on October 16, 2011, 08:17:01 PM
The options are to run a dual alt pulley or an idler pulley where the air pump used to be, or indeed get a full epic Gilmer pulley setup:

Dual alt pulley:

(http://img.photobucket.com/albums/v322/EDGE540/mazda_progress037.jpg)

Idler pulleys:

http://www.dm-motorsport.co.uk/billet-air-pump-idler-pulley-33-c.asp

Gilmer kit:

http://www.tweakit.net/shop/product_info.php?products_id=430
Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: B.Martin on October 16, 2011, 08:37:54 PM
Thy glimmer kit looks cool as ;)

Edit - pricey though!
Title: Right size FD alternator/power steering belts, is my air pump removed!?
Post by: m1tch on October 16, 2011, 08:38:36 PM
Indeed, will save up and get one for the FC/FD hybrid engine I have in the garage lol