Hey guys,

So I'm changing my water pump on my '89 gtu and I might as well change the drive belts.
Are the locknuts illustrated in the service manual , are those the tensioners?



And which belt brand is good...bando? its an oem fit
thanks

 

wow, you're kidding right ?

 

wait... we have drivebelts?

 

hahahahahaha

 

Only belts we have are AC, Power Steering and the alternator belt.

 

Lawlz

 

You forgot air pump, assuming your car still has it.

In any case, there's no need for everyone here to be so mean to Illustrated_FC. Everyone had to do this stuff for the first time once.

To answer the original question, the alternator and air pump both pivot on one bolt and are tightened with the other nut and bolt along the curved bracket. The AC and power steering belt tensioners are a little different; you loosen the nut on the center of the pulleys then tension or loosen by adjusting the nuts on the tops of the brackets.

If you don't already have one, pick up a Haynes manual. It explains all this basic stuff quite well and you won't have to ask questions here and be mocked.

 

To everyone else. If you dont have nothing good to say and help out others than stay quiet.

daviddeep : i appreciate the help. I guess i confused the drive belt with just the Accessory belt .

I know i have a rotary engine.

Yes i did mean the A/c compressor belt and the air pump, alternator and the power steering.

okay. i did pick up the hanyes book and it mentioned to loosen the locknuts, but i wasnt sure is thats how you loosen the tension on them.

so pretty much just loosen those locknuts ?

ill review the manual again.

 

I modified diagram 22.4a from page 46 of the Haynes manual to help illustrate how to do this.

For the power steering and AC belts, there are two pulleys per belt; a larger pulley that is on the accessory (AC compressor and power steering pump) and a separate tensioning pulley. The tensioning pulley is the smaller of the two and in both cases is higher than the main pulleys. The locknut is the really large nut (from memory, I think it's 21 mm or so?) on the center of each tensioning pulley (See #1 in the illustration) for those two belts. You loosen those, then at the top of the aluminum mounting bracket, you'll see two much smaller (10 mm?) bolt heads (#2 in the illustration). By turning those bolts, you can adjust the position of the tensioning pulleys for each accessory.

Lots of cars use this belt tensioner type today, but if you've never seen it before, it might seem hard to figure out. You'll see it's much easier to get good tension on these belts than on the air pump and alternator belts that use a more traditional system.

And incidentally, the Haynes manual does refer to all of these belts as "drive" belts. I guess they mean "accessory drive" belts.

As far as what brand belt to buy, I've always just ordered mine from Mazda because they aren't that expensive. I'm sure whatever belts they sell you at NAPA or Advance, etc., are fine.