i stripped the bolt to the air pump and need some time to buy more dremel pieces. cant i just remove the belt?

 

You need to get a dual alternator pully if you want to remove the air pump. A single belt doesn't have enough contact on the water pump and it can/will slip.

 

I never actually had a problem with my old car and belt slip. If you haven't already, remove the air control valve and get a block off plate.

 

what about the yahoo belt?

 

I know of a lot of people who have had success with the yahoo belt...I am not one of them. In addition to being a complete SOB to get on, I was running them for 3 months, and in that time I went through 4 of them. Granted, they're not like, precision belts or anything, so there is a bit of variance between belts, but I would run dual full belts so you don't get stuck somewhere with a snapped belt.

Or you could do what I did and order gilmer pulleys.

 

Where are you guys buying your duel alt. pulley from and block off plates?

 

you dont need the dual alt pulley. Ive been running w/o a smog pump for years w/ onle one pully no problem. As long as your a mostly stock application and not tunnin anything crazy your just fine with one belt.

 

you can get pulleys here

http://www.racingbeat.com/RX7-1975-1...tem/11479.html

good price
http://mrcmfg.com/catalog/advanced_s...5d9818&x=0&y=0

and mazdatrix just has the racing beat pulleys at racing beat prices.

 

thats guys... now to take care of that stripped bolt....

 

I thrashed my car all day on blacktop in about 100 degree weather with a single belt. No problem staying cool whatsoever..

 

I run a 3L220 Lawn mower belt for mine, works fine, it looks loose but works great. A 3L210 should work too, but I've never tested these. The dual alt pulley I find has less contact on the water pump pulley, also it seems to constantly need readjustment and I find the 3L220 or yahoo the better way to go.

 

I ran my 7 for 2 years on just a single belt for the alt and water pump, had no problems with slipping

I do use the RESPEED dual alt pulley now that i switched engines and got some goodies, It's a lot cheaper than RB or Mazdatrix

http://mrcmfg.com/catalog/product_in...roducts_id=393

 

I have this pulley.

http://banzai-racing.com/store/79-85...lley_belt.html

 

https://www.rx7club.com/1st-generation-rx-7-1979-1985-parts-101/racing-beat-dual-sheave-alternator-pulley-982503/

 

I also have the 3L220 belt. It was really easy to get on, and it only cost about $5 on Amazon.

 

See if you cant get a pair of vise grips(really tight) or a pipe wrench on the stripped bolt head and then bump it with a hammer to break it loose.

 

I fond this on a blog I follow.
http://www.jdmlegends.com/blog/?paged=11
It shows how he removed a bolt from a water pump on a Toyota Celica.

 

i think if you still have the stock fan, you should have 2 belts. if you do not have the fan you can usually use just one belt.

one belt plus the fan is a bad idea though.

 

stock fan, single belt no water pump issues ever.. If ur fan clutch is bad then i could see it being a issue. Re-speed also sells the pully for pretty cheap you can get it from them.

 

If you get a dual-belt pulley for your alternator, you can run two of the normal e-shaft/water pump/alt belts. I'm running an FD Alt with a dual-belt pulley and it works great. Then again, I have an e-fan, so I probably wouldn't have water pump slippage issues on even a single belt like the folks with clutch-based fans would.

Jon

 

you don't find that the 3l220 belt is too loose?
I used one for a while and thing looked like it was just about to fall off and made a horrible squealing at speed.

 

While we're talking about this - I used a 3L220 on my 12a and it fit well. 3L210 is too tight. On the 13b I've got now the 3L220 looks quite loose, I haven't run it enough to find issues yet, but the 3L210 was much too tight as well.

 

Update- running a single belt with no problem. I do need to put the duel pulley....is it hard to replace?