rxhevin

Yes, just 5 bucks. I have been doing some research. Paying 50-60 bucks is too much for a pulley. Here are the specs on the 2nd gen. RX-7 (Mitsubishi) 86-88 alternator (shaft 15mm, center of pulley 9mm). So I did some research and found this one. I have ordered it, but have not received it yet. It should fit perfectly, and the good news, five bucks! If it works I will let everyone know where I got it. The company that made it does not make it anymore (discontinued). However there is a large stock at a distributer that I hooked up with.

Dimensions:
10mm Belts x 67mm OD x 15mm Bore

tesla042

That's way too cool.. I need one, but i just CAN'T pay that much for it.. hope it works!

-Tesla

rxhevin

I'll absolutely let you know. I looked at a differnet pulley manufactured by the same company, and it felt solid yet not too heavy. This one seems to be a good find for the $.
keepin'em crossed
DL

Audiofight

1. Pick jaw up of floor after seeing the savings

2. Add thread to favorites.

Let us know if it works. I could definitely use a new pulley.

new recruit

When I my t2 months ago I kept throwing belts and chewing up the front seal. I took it to an alternator shop and they gave me a double pulley off of an 86 or so 6cyl chrysler with mitsubishy alternator. It works perfect. And they gave me the pulley for free out of the scrap alt bin. He said he remembers these cars from way back... cool eh.

jim

Felix Wankel

I got mine from a local shop. Mine is a standard 1/2'' shank dual groove pulley.

peejay

Lots of late 80's Subarus had Hitachi alternators that fit our cars with no problem (need to use Subaru lower bolt). Some of them had dual-groove pulleys stock. I don't know if the pulleys will fit a Mitsu alternator but I do know that the whole unit will fit!

rxhevin

Felix and others,

The 1/2" shank is too small for the stock 15mm shaft. If I did my math right 1/2" is about 3mm to narrow and will not fit properly. Not saying that yours does not work, but you do not have a Stock Mitsubishi 86-88 alt OR you do not have a 1/2" bore pulley.

For other fellow RX-7 heads, you might want to test an American standard 1/2" bore on the metric shaft before you purchase. The fit and center alignment is very precise. If the center is not perfect the belt will not spin straight and smooth. Kinda like a lowered car in need of a camber adjustment :-)

my .02
-DL

peejay

15mm is equivalent to 19/32s IIRC. I used to have a 19/32s wrench when I was a little kid and I always wondered why they made it, then I found out it fit perfect on the nuts that held the wheels on my bikes, then years later i discover those are actually 15mm nuts.

1/2 inch is about 12.5mm, lots smaller than 15mm, if you have a mill you can just open them suckers up a little!

new recruit

So are you guys telling me that the 86 chrys pulley won't work. If you are , my car shows different.

Jim 87t2

rxhevin

You are exactly right. The 86 chrystler had a 15mm bore alternator. And Dodge, and plymouth. Take your pick!

All had:
Mitsubishi IR/EF Alternators
Used On:
(1987-81) Chrysler, Dodge, Plymouth
Unit Nos:
Mitsubishi A4T25191, A4T25199, A4T30399
Dimensions:
10mm Belts x 67mm OD x 15mm Bore

peejay

Oh ick, I bet those are the alternators used on those awful 2.6l engines they put in K-cars and minivans...

Rotorious7

iTrader: (1)

keep me posted

new recruit

Hey Peejay, You don't have to worry it's not the pulley making those chryslers knock......hehe

tesla042

Does that pulley underdrive the alternator at all?

Can you find cooresponding e-shaft and water pump pulleys? It would be freaking awesome if we could get a whole underdrive set for like 15$!!

-Tesla

rxhevin

funny you should mention it. I am working on finding the correct size for UD and offset. The alt pulley should UD as it is 67mm and the stock is ~62mm. We could really have a perfect set at a low $. Guess I am cheap. I will update the minute I get the alt pulley (should be Thurs. or Fri as I went cheap on shipping too ;-)

jspecracer7

DAMN!!! $5?!?!?!?! I paid $75 for the dual pulley and two belts when I got my FC and you're telling me I could have saved $70?!?!?!?!?!

Damn it!

General Tojo

Hey rxhevin


Alot of the first gen guys (me included) used these a year or so ago on our FB's. Mine worked out very well with the exception that the material these are made from are a non-coated porus cast material.

If you were to use one, they should be Jet-hot coated or powder coated.

I really need another one of these, hook me up with your connection and I'll have mine coated one way or another... Or arrange it yourself so we can have a group buy....

Send off like 10 to jet-hot, have them coated, and ten shipped back to you.... then you sell them cheaply, but for enough you can profit a little from them, (maybe $1 each)

Please let me know! I want to remove my air pump tomorrow, and do not trust the single pulley...

rxhevin

Thanks for the advice, GT. I have not installed the pulley yet. I have had a super busy weekend. I should be able to this week. So I can't comment on the fit or anything. I do not want to be a "middle man" (don't have time). If you want to wait until I put it on, I will post a full report with pictures and details. Otherwise here is the info to order. If you are not a shop, tell them that you are a shop and that you need to set up an account. (these places are wholesale, hence $5.00). If you have any trouble I will order it for you as I have an account and you just pay the cost+shipping. Call around because other shops may have it too. So here is the information:

The pulley was manufactured by WAI (Wetherill Associates, Inc.)

Part Number: 24-83100
Locations that sell it:

California —
WAI Distribution Center
15191 South Figueroa Street
Gardena, CA 90248-1723 USA
Local: 310-329-2942
Toll Free: 1-800-832-1032
Fax: 1-800-329-6768



Florida —
WRS Orlando
4210 L B McLeod Rd., No. 113
Orlando, FL 32811-5682 USA
Local: 407-839-8555
Toll Free: 1-800-773-0005
Fax: 407-839-4888


Illinois —
WAI Distribution Center
100 North Gary Avenue, Unit D
Roselle, IL 60172-1685 USA
Local: 630-894-5870
Toll Free: 1-800-877-3340
Fax: 1-800-948-6121


Massachusetts —
Boston Auto Electric
103 Clayton St.
Boston, MA 02122 USA
Local: 617-282-1444
Toll Free: 1-800-225-6650
Fax: 617-282-4413



Minnesota —
ASAP
917 Lone Oak Road
Building 900
St. Paul, MN 55121-2267 USA
Local: 651-688-7161
Toll Free: 1-800-833-9096
Fax: 651-688-9285


Missouri —
WRS St Louis
155 Weldon Parkway
Maryland Heights, MO 63043 USA
Local: 314-692-0055
Toll Free: 1-866-556-6441
Fax: 314-692-0077


Oregon —
ASE Supply, Inc.
2321 NE Argyle St. Suite C
Portland, OR 97211 USA
Local: 503-288-0100
Toll Free: 1-800-289-2737
Fax: 1-800-214-6745

Pennsylvania —
WRS - Allentown
155 Nestle Way, Suite 105
Breinigsville, PA 18031 USA
Local: 610-706-0000
Toll Free: 1-866-558-5112
Fax: 1-866-559-5112


Texas —
WRS - Dallas
404 International Parkway
Arlington, TX 76011-6618 USA
Local: 817-633-7163
Toll Free: 1-800-441-4924
Fax: 1-800-558-1954

California -
Superior Distribution Center
1142 South First Street
Turlock, CA 95381 USA
Local: 209-667-7051
Toll Free: 1-800-457-1728
Fax: 209-667-8208
Toll Free Fax: 1-888-596-1137


Georgia -
WAI Distribution Center
1230-A Six Flags Road
Austell, GA 30168-7520 USA
Local: 770-739-0081
Toll Free: 1-800-227-1959
Fax: 1-800-739-0084


Michigan -
WRS Detroit
32534 Dequindre
Warren, MI 48092 USA
Local: 810-795-5784
Toll Free: 866-267-3688
Fax: 810-795-8704

Missouri -
WRS Kansas City
1689 N. Topping
Kansas City, MO 64120-1223
USA
Local: 816-483-5112
Toll Free: 1-800-782-1615
Fax: 816-241-1488


New Jersey -
Metropolitan Distributors
216A Midland Avenue
Saddle Brook, NJ 07663-6404
USA
Local: 973-772-3320
Toll Free: 1-800-562-6975
Fax: 973-772-3232


Ohio -
WRS Cleveland
4316 Cranwood Parkway
Warrensville Heights, OH 44128
USA
Local: 216-662-6734
Toll Free: 1-888-458-3155
Fax: 216-662-8452


Texas -
WAI Distribution Center
404 International Parkway
Arlington, TX 76011-6618 USA
Local: 817-633-7163
Toll Free: 1-800-441-4924
Fax: 1-800-558-1954


West Virginia -
Electric Motor Service (EMS)
Route 10
Stollings, WV 25646 USA
Local: 304-752-6070
Toll Free: 1-800-697-6070
Fax: 304-752-6084



Good Luck and feel free to PM me with questions,
-DL

perfect7

I tried the one in orlando fl and they don't have it anymore. They said that you will have a hard time finding one. I tried an alternator shop and they have one for $10. Just find one that is helpful and it should be cheap.

asherwood

If so, are there any downsides to using one?

Re-Speed.com

iTrader: (3)

To find the decimal for metric and american you:

If you know american number:
1/2 inch is .500

so .500 X 25.4 = 12.7MM

if you know metric:

12.7mm x .03937 = .49999 inch
15 mm x .03937 = .59055 inch

You will not fit a .500 bored pulley on a 15mm shaft (.590)




-billy

NZConvertible

Asherwood, underdrive pulleys save you horsepower at high rpm, but not much. IMHO they're a waste of time on a street car because you spend so little time at constant high rpm. They make practically no difference to power at lower rpm, but you're alternator is charging less. They're good on race cars looking for every last hp and don't need the alternator running flat out. The same theory holds for underdriven water pumps.

rxhevin

NZConvertible and others, That is true, however the main reason that FC owners use the 2 groove pulley is because you need it if you remove the air-pump. The water-pump needs a second belt. So if you remove your emissions system, get the 2 groove pulley (street or track).
-DL

NZConvertible

You're right, that's why I got mine. Damn squealing belts drove me nuts! But what he asked was what are the downsides to using an underdrive pulley.