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The mkiv Supra Owners Club

Crank pulley removal - having a nightmare!


Homer

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Having a right mare of a time getting the bolt undone.

 

I borrowed Jakes home made removal tool "thing", but the bolts holding it to the pulley sheered off in their holes. bugger!

 

So, I think I have to use the 'starter' method. How does this work exactly? put an extension bar on the nut, move it round until its on the chassis leg then try and turn the engine over?

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I borrowed Jakes home made removal tool "thing", but the bolts holding it to the pulley sheered off in their holes. bugger!
Nooo! Was the tool flat against the face of the pulley? Those bolts should bend a fair bit before they snap.

Must be on there hella tight!

were the bolts that you snapped stainless ?
No, just regular m8 bolts. I used the same ones (from the same box anyway) on two different Supras just fine.

 

 

Starter motor it is then Darryl. Make sure your battery is fully charged to give you full torque. Be careful mate.

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Nooo! Was the tool flat against the face of the pulley? Those bolts should bend a fair bit before they snap.

Must be on there hella tight!

They were on very tight, I got up to a 5 foot scaffold pole hanging so guess it got too much. That bolt sure is tight!

 

For the starter method - looking at the engine from the front which way does the pulley rotate when cranking it?

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I had the same problem with the 2 bolts that hold the tool on snapping, it was because I didnt have the tool flush to the pully. So, make sure its flush and then get an old washing line pole over the end of your ratchet/ torque wrench and that should do it. :D

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Well the starter method worked perfectly, it came straight off.

 

The crank pulley was completely knackered, the outer ring just fell off.

 

Only problem now is to get the two snapped off bolts out of the main pulley so I can get it off! (wish it would stop raining too....)

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Stainless bolts are much weaker than a normal grade 8 steel bolt, so why stainless?

 

Beat me to it.

 

In the kit I loan out there are high tensile steel bolts, even they can bend but stainless steel is too soft for the strain the crank pulley needs.

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i've bent a few bolts too, i now have a machined steel disk that effectively fills the whole front of the pulley so there's no recessed area at all. It has two holes for the bolts to locate through and i'm hopeful they will support the bolts and stop any significant bending, however i've not used it in anger yet......

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Finally got the pulley off, what a mission that was!

 

Just before I fit the new one, is it okay to apply some bronze grease to the inside of the pulley before fitting - just to help it go on easier?

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