Timing Belt Replacement AE92

[dmdevries]

I am trying to replace the timing belt on a 89 Corolla 4A-F engine. I've gotten stuck on removing the idler pulley (the one on the end of the crank shaft.) My manual recommends removing the automatic transaxle and jamming a screwdriver in the ring gear to keep the crank shaft from turning. This sounds like waaaay too much work. I don't have an impact wrench. Anyone found an effective way to remove this pulley. I can keep the upper timing belt sprocket from turning, but I don't like to put that much load on the belt.

Thanks in advance for any help.

[ek-9]

the one you're talking about is the Crank Pulley. I have the manual for the AE86 in front of me and there's supposed to be a SST for holding the crank in place but it look like nothing more than 2 bolts screwed into the pulley with a handle attached. I'm guessing if you take a piece of wood or metal, drill holes and bolt it to the pulley (which should have a few threads on the inner ring) you should be able to grip it enough to remove that pulley.

Actually, I'm stuck on the same thing on my car but I'm not going to worry about it till later this week. Lemme know how you get around it.

[ek-9]

here are some pics that might help describe what I'm talking about.

[Xenon]

Now that's a sexy looking pulley!

[88corollaGTS]

On 2002-07-01 20:38, Xenon wrote:
Now that's a sexy looking pulley!

Oh Man!! Bar scene not so good these days??

[Flashmn]

Why are you removing the pulley if you are only changing the belt?

[dmdevries]

Thanks for the info. That tool idea would work but I'm too lazy! I used a 5 inch (that's about 125 mm North of the 49th parrallel) and a block of wood to imobilize the pulley. I attached the clamp to the aft end of the pulley and made sure the pressure was applied to the "thick" part of the pulley. When the bolt is turned, the clamp contacts the engine block and can't move. Since the bolt has about 90 ft-lbs of torque and the pulley radius is around 4 inches, one needs about 360 lbs of friction to keep the pulley from slipping.

The crank pulley has to be removed to gain access to the timing belt. The lower belt cover can not be removed (with the exception of cutting it) if the crank pulley is in place.

[goodcookiedrift]

damnn....this job is soooo easy yet so many people have a problem with it.

here's the little secret to getting the job done quick!

use a harmonizer, NOT a pulley puller. The Harmonizer has the main bolt and all other accompanying bolts that would fit into those two small holes beside the ceneter of the pulley. You can get a harmonizer at Crappy tire for dirt cheap.

Secondly yo don't need an impact wrench. IT makes the job easier, but youcan do it without. Get a half inch rachet drive, with the longest shaft....leverage is key. You generate MORE torque using a half inch drive with your body weight than most impact wrenches can on full....unless you have access to a monterous and industrial strength compressor.

ps: put the car in gear to eliminate free play of the crank.

[bondobondo]

also with the 1/2" drive and a long ratchet, get a long pipe, that way you can make it LONGER, and put even more torque on it. with minimal effort.

[Flashmn]

Thats odd, I dont remember my workshop manual telling me to remove the pulley... hmm can be that I remember wrong. I've never done this part myself, heh I'm not so confident I can pull it off.