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Woodruff key crankshaft pulley

How to take out a broken key off the crankshaft pulley

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Posted on Jan 02, 2017

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SOURCE: Crankshaft Woodruff Key Removal

You are correct, this key does drive both. While I have never tried to remove the keway with out both pulley and lower sprocket you may be able to (my gut says no but anything is worth trying once) I'd position the keyway at the 12 o'clock postion and with a good pair of needle nose pliers see if the key will roll out as you pull up and away with it. If it will not you'll of course have to remove the front of the engine and pull the timing belt, if over 60K miles on belt go ahead and replace with new.

I hope this may have assited and good luck!

Tom

Posted on Apr 09, 2010

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1 Answer

Snapped crankshaft pulley bolt


does this model have a woodruff key in the pulley mated to the crankshaft it mounts to? if so, the key may be worn down.

Mar 21, 2014 | Honda Odyssey Cars & Trucks

1 Answer

1996 Jeep Cherokee Sport - 6 Cyl /4.0 Liter - Crankshaft dampener fell off. Proceedure for reinstall?


You will have to buy a new pulley to crankshaft bolt and washer. Or did you find that as well when you picked up the damper? Probably fell off a long time earlier. Buy a used one from salvage, or get one from a Jeep dealer.
The damper should only go on one way. Or there may be a missing woodruff key. It would fit into a slot on the crankshaft, holding the pulley in a set position. If the woodruff key is missing, you will have to find one of them as well.
Working from underneath, remove the "belly pan" mounted below the front of the engine. Book says you MAY need to remove cooling fans and radiator for access-but that is for removing the old pulley with a pulling tool. You may be able to get it all back together without pulling the fans or radiator off. Put a little clean oil on the crankshaft, align the key slot of damper with crank key and tap the pulley on with a soft faced mallet or appropriate tool. Get the pulley on, tighten down the bolt tight as you can get it, then belts back on. Then go to a shop and have someone put an impact tool onto the bolt to torque it down to specs-80 FT-lbs.

Nov 24, 2013 | 1996 Jeep Grand Cherokee

1 Answer

My 01 kia sportage makes a ticking noise under the hood when it is running ?


Check to see if there is any wobble in the crankshaft pulley, it should be spinning straight and true. If it begins to wobble, you may hear a ticking noise, a loss in gas mileage, and later the tick will become a knock. I had a similar issue with my 2001 Kia Sportage, and it turned out to be the crankshaft woodruff key.
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This caused a miss-alignment which altered the correct timing, which in turn was causing the knocking, reduced MPG's, hesitation upon acceleration, and a slow return to idle RPM's. If this turns out to be your problem, the correct way to repair it is to replace the crankshaft, woodruff key, and possibly the pulley gear. Another option is a rebuilt, or crate engine, neither option is cheap. I chose a third option which some have claimed to have exceeded 60,000 miles using a carefully crafted, tightly fit, secondary woodruff key, and carefully bond the key in place, the gear to the shaft, all using JB Weld high temp two part epoxy, and let cure for 48 hrs. In my case so far so good. Gas mileage went from 12-MPG's to 19-MPGs, acceleration's back, and hoping for the best.

1_22_2013_5_49_23_pm.jpg

Jan 20, 2013 | 2001 Kia Sportage

1 Answer

Harmonic balancer bolt came off while driving


Not all of them have a woodruff key, but yours may still be on the crankshaft if you had one. At one time, someone had that pulley off and did not tighten the bolt tight enough-they need to be very tight according to specs, over 100 ft. lbs. of torque when tightening.
Check the balancer for damage and the crankshaft where it sits on. If no visible damage, I think you could use it. Did you go back and pick up the bolt and washer? You need them, or a duplicate from a salvage yard. Now fit the balancer pulley on the crankshaft (its the crankshaft, not the camshaft). It only goes one way. If yours slides on any which way, you have lost the woodruff key, and will have to get one-it would fit in a slot on the shaft, and the notch in the pulley rides over the woodruff. if yours is like that, fit the pulley on, tighten the bolt down solid. You may have to wedge something against the pulley while tightening the bolt to keep the crankshaft from turning. Once you get it on, then fit your belt back on, and you're good to go.

Nov 27, 2012 | Cars & Trucks

1 Answer

1993 SUBARU LEGACY CRANKSHAFT PULLEY IS OF BEFORE FINDING TOP DEAD CENTER WHAT MUST I DO TO PROPERLY INSTALL THE CRANKSHAFT PULLEY IN RIGHT POSITION AND DOES THIS PULLEY GET A KEY STOCK INTO THE SLO


If you mean your fan belt or drive pulley broke and you want to replace it, there is no timing position unless there is a Woodruff Key for the pulley and that is straight forward.

Aug 14, 2017 | Subaru GL Cars & Trucks

2 Answers

Pulley for crankshaft came off wheel Can you change it like a regular pulley?


Yes you can. There is a woodruff key on this pulley so be sure to get a new key if your was lost. I'm assuming you are talking about the external pulley that spins your accessory drive belts (A/C, alternator, power steering) So, I have to ask the obvious question. . .How the heck did your pulley fall off the crankshaft? The bolt that holds that on is usually so tight that you need a 4 foot breaker bar to break it loose.

Dec 10, 2010 | Chevrolet Malibu Cars & Trucks

2 Answers

Does the crankshaft have a woodruff key for the harmonic balancer?


hi this depends on what harmonic balancer you are inquiring about, normal balancers do have a woodruff key,but the pulley type harmonic balancer only bolts to a cam hub on what ever it is connected to, such as water pump, etc etc... hope this helps

Sep 13, 2010 | 2001 Oldsmobile Aurora

1 Answer

Crankshaft Woodruff Key Removal


You are correct, this key does drive both. While I have never tried to remove the keway with out both pulley and lower sprocket you may be able to (my gut says no but anything is worth trying once) I'd position the keyway at the 12 o'clock postion and with a good pair of needle nose pliers see if the key will roll out as you pull up and away with it. If it will not you'll of course have to remove the front of the engine and pull the timing belt, if over 60K miles on belt go ahead and replace with new.

I hope this may have assited and good luck!

Tom

Apr 06, 2010 | 1990 Mitsubishi Montero

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