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The mkiv Supra Owners Club

Bottom Crank Shaft Pully


Batgirl

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How do you lock the bottom crank shaft pully whilst doing it up? I've noticed a location hole on the rear but is there a special tool to lock this off or am I being silly or is there a pin that just locks it somewhere else that I haven't seen cos I'm working with a lead light in the dark - any help would be most appreciated ! :(

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It is a Toyota special tool, SST 09213-70010, 09330-00021,

but a 2 foot long flat bar with a bolt small enough to go in the hole would do, you just need something to resist the torque when you do it up.

 

Some of the others on here may be have something you could use.

 

Not changed my belt yet so can't help.

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This is how I did it.

Remembering that I am auto I imagine there might be differences if you have a manual.

At the gearbox end of the secondary sump pan (the bigger ally one) there is a black rubber cover about 5-6 inches long and about 3-4 inches high.

Take this out and it will reveal the torque converter. as you turn the engine over by the pulley you will see some bolts on the back of the torque converter that bolt it to the flywheel.

 

I wedged a massive screwdriver between the bolt and the side of the hole what the rubber came out of.

 

Obviously this needs two people to do this.

 

Hope this helps

Scott

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Originally posted by Soonto"HAS"soop

FYI, my local Toyota dealer says that the special tools aren't even available to them.

 

My method was a rather large masonry chisel and an even bigger hammer. It took over 1 hour to get the bolt to move. All other methods did not work.

 

Absolute PITA!!

 

Ben..

 

I really dont reccomend this method at all :eek: . Ben how did you do it back up ????? you did use loctite as well didnt you ????, there is also the issue of how to remove the pulley when the bolt is out , do NOT use heat as you will wreck the pulley which is not the strongest item made by toyota , in fact a lot of these are now failing and many people are replacing them as a matter of course with new OE ones , prevention being better than cure etc :thumbs:

 

Dude:flame Dev

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Originally posted by Batgirl

How do you lock the bottom crank shaft pully whilst doing it up? I've noticed a location hole on the rear but is there a special tool to lock this off or am I being silly or is there a pin that just locks it somewhere else that I haven't seen cos I'm working with a lead light in the dark - any help would be most appreciated ! :(

 

3/4 drive air gun, no need to lock anything up, or remove starter and weld up some sort of angle iron jobbie to lock the flywheel or flex plate teeth. Buy or make something akin to the Toyota tool to lock the pulley via the holes in its hub. If it comes loose the crank will be buggered. If you don't mind me asking, why have you had to renew it?

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The crank shaft pully separated leaving the belt on what was left of the pully. Consequently it lost all drive to power steering, alternator etc

The pully I took off I drilled a hole through and locked it with a bolt and a 4ft ally scaffold tube to get leverage - it was tight!

I didn't have enough room for my standard hub puller so I made a tool with several bolts and thick gauge metal plate. I undid the crank nut several turns, then pulled the pully off about 10mm at a time, then undid the nut a bit more and repeated it. I used the crank bolt to push the new pully in situ. All I need to do now is take the bolt out and apply some loctite and do up to the correct setting.

Thanks for all suggestions and help! :)

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Originally posted by Batgirl

The crank shaft pully separated leaving the belt on what was left of the pully. Consequently it lost all drive to power steering, alternator etc

 

Not had a timing belt change recently by any chance have you? Or any other front end work done?

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Originally posted by Darren Blake

Not had a timing belt change recently by any chance have you? Or any other front end work done?

 

 

I think Darren is referring to a previous bodged attempt by some one else, probably using the heat method:eek: Rather than natural failure.

 

Batgirl did you get any unusual noises from the front end at tick over before your pulley failed?

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Yes - when I turned the steering wheel it squealed - cos I'd only just got the car didn't think it was anything to worry about - seemed mainly to happen when it had rained. All makes more sense now though!!! I usually have my music pretty loud so not sure if there had been any ticking noises or not. :(

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Terminator has guessed right. Your crank pulley would have to have been removed by whoever changed your timing belt and if they used heat to loosen the bolt, then it may well have hardened the rubber in the damper and significantly shortened the life of the pulley, causing the separation that you experienced.

 

I think the same thing happened to Rob on this BBS.

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