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Removing Crank Gear/Sprocket
Posted: Mon Aug 19, 2013 7:11 pm
by P3nnyw1se
So I know that there's a key now I'm wondering if that sprocket can just be pried off or if I need to remove the key to be able to remove it. It's pretty rusty so I'm thinking of using some Electrolysis to clean it along with the cam gears since they're all rusted up. I'll be putting on Tomei Cam gears later when I have more money, but I figure this will work for now. What do you guys think? Is it safe to do? Since there aren't any parts that will be shifting around it seems like it would be a good option to removing all the junk on there.
Thanks!
Re: Removing Crank Gear/Sprocket
Posted: Tue Aug 20, 2013 4:33 am
by totta crolla
If the crankshaft is out of the engine then removing the crank pulley is quite easy.
Removing a non rusty one from a built up engine is difficult enough, a rusty one ?
I'm not even sure if you can remove the woodruff key with the pulley still on.
If you want to remove the pulley because it is rusty can you not just clean it up in place to save potential damage to it by trying to remove it ?
Re: Removing Crank Gear/Sprocket
Posted: Tue Aug 20, 2013 9:56 am
by gotzoom?
I've had a couple sticky ones, myself and had to resort to destroying the pulley to save the crankshaft. I'd first try a large flathead screwdriver and gently pry against the oil pump housing. Given that's things are rusty, I wouldn't expect that to work. Get some PB Blaster and spray that on the pulley and crankshaft. You might need to repeat the application for a few days to get it well penetrated. Many auto parts stores rent slide hammers. You will need the small hook attachment, and you can hook that behind the pulley and try tapping it out. If that works, you might need to destroy the pulley to get it off. When I've needed to do this, I use a set of 2-jaw pullers and I drill a hole in the pulley on each side that is large enough for the jaw points to fit in to and then it should come off fairly easily. Of course, you need to find a replacement pulley if you have to do it this way.
Re: Removing Crank Gear/Sprocket
Posted: Tue Aug 20, 2013 12:37 pm
by toyotaspeed90
The best trick I've seen (and never done myself) is to drill 2 opposing holes, threading them, then using a steering wheel puller to get it out.
With that said I've broken many pulley's and oil pumps trying to get them on.... sometimes they are just short of welded on....
Re: Removing Crank Gear/Sprocket
Posted: Tue Aug 20, 2013 4:05 pm
by P3nnyw1se
I'll try WD-40 and a flathead. Hopefully the timing sprocket comes out easily. I'll be replacing the oil pump so I could care less about that. Haha. I'll let you know how it goes
Re: Removing Crank Gear/Sprocket
Posted: Wed Aug 21, 2013 12:44 am
by taroroot
P3nnyw1se wrote:I'll try WD-40 and a flathead. Hopefully the timing sprocket comes out easily. I'll be replacing the oil pump so I could care less about that. Haha. I'll let you know how it goes
Get some real penetrating oil, PB or my favorite, Kroil. WD40 has next to no oil, its mostly solvent.