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-   -   Crank pully problems. (https://www.homemadeturbo.com/general-discussion-6/crank-pully-problems-25359/)

B00M3R 08-24-2004 06:47 PM

Crank pully problems.
 
So with your guy's direction I replaced my water pump, idler pully and timing belt this weekend but I ran in to a problem and thought I would ask what other did.

when it came time to remove the crank pully to get the plastic timing belt cover off, I couldnt get it to move. I even got out my big 3/4" gun and hit it but couldnt get the bolt to budge. (never had anythign that it couldnt break free)

I ended up cutting the ------- plastic cover off with tin snips and a screw driver so we could get inside to work on the stuff.

anyone ever have this same issue? what did you do to fix it

87na_rx7 08-24-2004 06:50 PM

Re:Crank pully problems.
 
usually the impact will get it... ive never had one on that tight. You try a BFH? or a breaker bar with a bolt breaker on it (jack handle)?

B00M3R 08-24-2004 06:52 PM

Re:Crank pully problems.
 
I didnt cause we had it set to TDC and using a breaker bar would move the crank.

my big gun is huge, 3/4 inch with a 5 lb hammer in it. It was the only way i could get my flywheel off the RX-7 and we used a 8 foot pole and lifted the car before we tried that so i know its got power.

nitrus 08-24-2004 06:58 PM

Re:Crank pully problems.
 

Originally Posted by B00M3R
we used a 8 foot pole and lifted the car before we tried that so i know its got power.

heheh

87na_rx7 08-24-2004 07:01 PM

Re:Crank pully problems.
 

Originally Posted by B00M3R
I didnt cause we had it set to TDC and using a breaker bar would move the crank.

my big gun is huge, 3/4 inch with a 5 lb hammer in it. It was the only way i could get my flywheel off the RX-7 and we used a 8 foot pole and lifted the car before we tried that so i know its got power.

what size is that nut, i forget its like a 53 right? you could have just loosened the crank nut then moved it back to tdc, if you were worryied about the pistons flying into the valves just loosen up the cam enough for the valves to come up

B00M3R 08-24-2004 11:28 PM

Re:Crank pully problems.
 
Naw its only a 19mm. I would have brought out the long arm to torque it off but it would have just turned over the engine with that much torque anyway. The gun was the only way i could think to get to off without problems and it didnt work.

I just figured others had had the same problem. seems like thats not true.

87na_rx7 08-25-2004 12:48 AM

Re:Crank pully problems.
 
you could try to leave it in gear... works for other cars but im not to sure about hondas

TunerToys 08-25-2004 12:59 AM

Re:Crank pully problems.
 
I have had this problem a couple of times. Beau hit it the last time and told me to heat it with a torch, then impact it off. Worked perfectly!

Thanks again Beau!

BTW, Don't torch it till it glows, just get it good and hot...

Craig

B00M3R 08-25-2004 09:52 AM

Re:Crank pully problems.
 
Yeah I thought about heating it but really didnt want to burn out a seal. Good to know I can hit it just a little with the MAP gas then get it off.
thanks!

Carnesd 08-25-2004 09:56 AM

Re:Crank pully problems.
 
Use a neumatic hammer. I just did my water pump last week, I took the car to minieke (they broke a 1/2" impact extension on it and couln't get it off) took it to another place that couldn't get it off and finally took it to a shop that used a impact hammer on one side of it and it came right off, have to get another bolt beforehand though.

B00M3R 08-25-2004 11:22 AM

Re:Crank pully problems.
 
Yeah a pneumatic impact hammer is what I was using. I was using my 3/4" gun (read really ------- big)
and wouldnt budge it.

its not this one but this is the sise.
http://www.mytoolstore.com/astro/1816.jpg


and the Bolt I am talking about is in this diagram as #15

http://www.automotivetech.org/photop...piston-med.gif

95RedEX 08-25-2004 12:19 PM

Re:Crank pully problems.
 
I've done mine a few times, the last really testing my patience and my trust in Craftsman tools.

First off, buy a can of PB Blaster spray. Buy ONLY PB Blaster. You can get it at just about any auto parts store.

Spray the bolt down alot. Spray it on and let it sit at least overnight. Longer if possible. Spray it every couple of hours and let it soak, soak, soak...

I have a Moroso crank pulley wrench to hold the crank pulley in place. You should be able to get away with putting the car in 5th and having someone hit the brakes for you too if you have a decent clutch. Regardless, you need to find a way to stop the crank from turning. A screwdriver in the flywheel method is a joke.

Get a breaker bar and a long 17mm (or is it 19mm?) socket. Get a long socket because you DO NOT WANT TO USE socket extentsions. There's too much play with them and you'll get too much twist when you try to get the bolt off. That's how they end up breaking (5 in my case).

Put the breaker bar and socket in place and kick it really ------- hard. REALLY HARD... LIKE A JOLT. If it comes off, set it up and kick it again. You don't need leverage so much as you need one good hard knock to get it loose.

Don't worry about the crank turning because you can turn it right back when the bolt comes loose. I spent months trying various tools and methods and this is the only way that's worked for me time and time again.

I even tried the "cut up the timing belt cover" ---- and I am a dumbass because of it.

spoon fed 08-25-2004 02:15 PM

Re:Crank pully problems.
 
isn't it a reverse thread aswell??

projekteg 08-25-2004 02:23 PM

Re:Crank pully problems.
 

Originally Posted by spoon fed
isn't it a reverse thread aswell??

no, there's a tool that you can buy that fixs in the octagonal shape of the pulley to hold it in place while you bust the nut loose. i just took one off a b18, luckily it had been sitting for a year and was froze up so the pulley didn't move and it busted right loose ;D

95RedEX 08-26-2004 11:48 AM

Re:Crank pully problems.
 
This is the one I have:

http://www.moroso.com/catalog/images/61805_part.jpg

carbonaccord69 08-26-2004 06:36 PM

Re:Crank pully problems.
 
I replaced my factory pulley with a lightened one and my mechanic had to use the torch on it. Something about heating it up enough to release the thread-lock. Try that.
BTW, the lightened pulley didn't help worth ----.

nonvtec 08-26-2004 11:17 PM

Re:Crank pully problems.
 
Crank Pulleys suck, bent the heck out of my friend's GSR trying to get it off. Had to replace the whole thing and all we wanted to do was change the water pump and timing belt.

jung4g 08-27-2004 01:00 AM

Re:Crank pully problems.
 
Honestly? No one knows the proper method for this?

Honda makes a tool specificly to do this, all you have to do is remove the flywheel cover and bolt on a toothed tool that holds the flywheel in place so you can crank the bolt right off.

I went to take off my underdrive pulley off my blown motor a couple days ago so I could swap it onto the new motor and instead of using the tool as the flywheel wasn't on anymore, I just took off the old oil filter put it a cylinder and the bolted on a scrap head. then I stood on the motor to hold it in place and cranked it off. When I took the head off, the oil filter had the imprint of the combustion chamber, pretty cool.

To get the stock one off the other motor, I simply put a vise grip on the pulley to hold it in place and cranked it off with a breaker. It ruined the pulley, but I just tossed it anyway, they are heavy and I don't have ps or air anyway...


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