1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Question about belts

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Old 05-07-02, 09:32 AM
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Where did my 7 go?

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Question Question about belts

I'm only running one belt in my car now (no airpump). I'm getting quite a bit of slippage once and a while. Is the best way to fix this is get a double-groove alternator pulley and run dual belts? If so, where do I get one? Thanks!


Matt
Old 05-07-02, 12:24 PM
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check out http://www.mazdatrix.com/b9.htm
Mazdatrix has a section on pulleys, belts and what kind of set up to use if you remove the air pump. (If you still have a stock exhaust, replace the air pump and read my thread on the thermal reactor that I posted the other day. It will tell you how the reactor works and why it needs the air pump.)
Mazdatrix will tell you a some stuff about trouble shooting belt sippage.
Hope that helps.
Old 05-07-02, 01:17 PM
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Where did my 7 go?

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My exhaust is far from stock.. Headers and the whole works. The airpump is just extra weight. Thanks for the link!

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Old 05-07-02, 02:32 PM
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Originally posted by Mschafe
The airpump is just extra weight.
Okay, maybe 5 pounds, but come on!
Old 05-07-02, 04:40 PM
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Putting in an electric fan will help with slippage as well as the belt no longer has to drive the heavy clutch fan.
Old 05-07-02, 06:53 PM
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Where did my 7 go?

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Yeah.. when i get some more $ i might be doing an electric fan conversion.
Old 05-08-02, 02:56 AM
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Check out http://www.rx7.voodoobox.net/
this guy installed an electric fan and explains exactly how to do it, and talks about why this fan is much better than any other. Its a tad bit pricey, but Im going to get it. Also, talk to a guy on here named 1st7heaven
he has an electric water pump. He dyno'd his car before and after the pump installation and showed 5 more horses. Now if you replace the pump, fan, and replace that stock 30lbs flywheel for a 17lbs steel one, or a 9lbs aluminum one (these are ultra light and makes it a little more jerky when taking off in 1st gear) then you are adding a lot more power to rear wheels. Throw in a high flow cat and turbo muffler like what I got, and you will feel like you got a new 7
Old 05-08-02, 09:17 PM
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yeah, i put a black magic on my '79 two summers ago- my fan clutch was gone, so i had a good enough reason. the fan does a good job- pulls like a mother.
i really dont think two belts are needed- i have two but one should be fine if the clutch is ok.
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