Belt Replacement

Last updated: July 24, 1998

Date: Wed, 5 Nov 97 13:32:49 CST
From: jwhite@htc.honeywell.com (Jim White)

> "DM" == Drew writes:
DM> Shame on you....where is the THIRD belt located on the 3rd gen?

I didn't say the car has three belts. I said the parts fiche shows three belts.

DM> I have run into this problem at a couple of auto parts places....I am
DM> thinking the non-existant third belt is for the cars without A/C. (I don't
DM> know of any FD's w/o A/C). Not a third belt...but an applicable belt for
DM> certain cars.

That seems right. In fact the comment in the fiche for belt 1 says, "W/ P.S." and the comment for belt 2 says, "W/AIR CON.".

  1. Power Steering                   is part number   N3A1-15-907
  2. Air Conditioning                 is part number   N3A1-15-908
  3. Air Pump, Water Pump, Alternator is part number   N3A1-18-381

The part number given for belt 3 is for manual transmission (MT) cars. I missed the listing for the automatic transmission (AT) version:

  4. Air Pump, Water Pump, Alternator is part number   N3A2-18-381

DM> Well I have the stock sizes...you can match them up with any
DM>belt maker:

DM> 6PK1045
DM> 5PK1355

DM> The format is xPKyyyy
DM> Where x= number or ribs and yyyy = length (diameter) in millimeters.

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Date: Sat, 11 Jul 1998 23:49:00 -0400
From: rotary@mediaone.net

Pettit Power Pulleys - power steering pump + A/C compressor requires a 37.5 - 38.5 six-rib belt.

Speculate that stock pulleys - power steering pump + A/C compressor requires a 38.5 - 40.5 six-rib belt.

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Date: Mon, 28 Jun 1999 16:05:06 -0500
From: Wael El-Dasher (wael.el-dasher@yale.edu)

>I have Greddy Pulleys on my car and want to retain the air pump.
>
>The factory Dayco belt is 53" Inches, and the next size up is 56.5" (it is
>too long). Ideally I need a 55.5" or more likely a 56" belt.

I used a Gates Micro V 54.5" 5 rib belt. The 56.5" was too loose, a 55" would work well, The 54.5 was tight but perfect. Slip it around the airpump, the alternator, and leave the waterpump pulley last, The smooth tappered edge of the waterpump pulley allows you to slowly (and forcefully) slip in place. Once in what seemes earlier like it won't fit, suddenly feels loose.

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Date: Wed, 09 Feb 2000 23:24:55 -0500
From: Wael El-Dasher (wael.el-dasher@efini.net)

> i purchased a kit from pettit racing to do the task< it consisted of
> the alternator pulley, waterpump pulley, and Gates micro v belt part 
> # K050290,   i forgot the price of this kit, i think i paid between
> $100-$150 for it.

This is the way Gates numbers their belts so you can speak Gatese (grin)

Part number K050290, the K is the series, 05 means five rib, 0290 means 29.0 inches. If you are planning to use a stock pulley then you will need a shorter one, perhaps just 1 inch, so try part # K050280 if it exists. The alternator gives you some reasonable adjustability, but do not over do it. The belt should have some slack.

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Date: Tue, 24 Feb 1998 17:32:59 -0600
From: Martin Crane

(The belts should be adjusted to) 4.5-5.0 mm deflection. That's 0.18-0.19 inches on either belt.

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Date: Wed, 09 Feb 2000 20:12:54 -0500
From: Wael El-Dasher (wael.el-dasher@efini.net)

I had several configurations run so I used several sized belts, I have them all but I can't tell which is which now. But I'll tell you how I buy my belts. I use a string, run it the path of the belt, and then measure it. I used Gates belts because that's what the local speedshop carries. The string trick is a very old but it works.

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Date: Tue, 24 Feb 98 16:49:45 EST
From: zgluszek@VNET.IBM.COM

>Help, I just replaced the two belts on my 93 and need to know how much
>tension to put on! Should there be much play on them or should they be
>tightened stiffly?
>
>Its so easy to overtighten with the "easy to turn tensioning bolts"(Not
>like the old PULL THE ALTERNATOR BY HAND AS HARD AS YOU CAN METHOD).
>Any methods would be appreciated Thanx Shane

The best way to keep belt tension consistent is to use "CRICKET II" belt tensioning gauge...

The "Cricket II" gauge is designed for multi-V grove belts and is manufactured by Gates. I picked one for less than $ 15.00... Keeping the tension consistent should help prolong water pump life...

Gauge comes with instructions and a general reference tightening table which gives values based on belt configuration...

Rotary Performance Pulley Kit Belts

I bought the Rotary Performance pulley kit (3 oulleys), and am including the belt part numbers here for future reference:

Dayco Polycog 5060400 - PS and AC. This is the larger belt. (6PK1015 was also printed on the package, but not sure if it has anything to do w/ the number)
Dayco Polycog 5050520 - water pump and alt. This is the smaller belt. (5PK1320 also on package)

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