Undo it as you would any other bolt
crankshaft pulley bolts can be tensioned to around 90 ft/lb so an impact gun is the best method of removal and tightening
SOURCE: Crankshaft pulley removal - no clearance between frame!
Put a jack under the engine. Loosen the upper engine mount bolts and lower the engine until you have enough clearance.
SOURCE: crankshaft pulley removal
Just put a big screwdriver into the fly wheel teeth, thru the hole in the bellhousing, (on the right side). Hold the flywheel still in this manner, while a friend breaks the big bolt loose on the balancer. Be sure to torque it back to the specified torque when you're finished with the belt replacement. Worked for me, back when I replaced my timing belt..Gary
SOURCE: broken crankshaft pulley bolt on
The only possibility I can suggest is that which is called and 'Easyout.' These are available at parts stores and come (normally) with a sized drill and a special bit with left-hand threads.
First a hole is drilled with the provided drill bit, then the removal bit is screwed into the new hole and turned counter-clockwise which further inserts the removal bit and, if the removal bit does not snap, the broken threaded shank should back out.
I would suggest soaking the broken part with penetrating lubricant first and allowing it time to seep into the threads of the broken bolt.
SOURCE: can't remove crankshaft timing belt pulley BOLT!
You will have to brace the crankshaft somehow, either by way of the flywheel, or the pulley. The trick to getting the bolt to break is "heat". Propane will sometimes work, but it's generally not hot enough. You want to get that bolt glowing if you can, and hit it with air impact then. Be careful not to burn yourself!
I hope this helps you, and I wish you luck on your repair.
SOURCE: which way do you turn the crankshaft pulley bolt to loosen it?
It turns left (counterclockwise) to remove. An impact wrench is best if you can get one on it.
If you don't use an impact wrench, you may need to somehow keep the crank from turning when you loosen the bolt.
One way is to pull the belt tighter to put more tension on the crank pulley.
There are other creative ways I've used. If you have any trouble let me know.
Place a drain pan under the radiator and drain the coolant from the radiator.
Squeeze the spring clamp holding the upper radiator hose to the radiator fitting with a pair of rib joint pliers and slide the clamp towards the engine.
Twist and pull the upper radiator hose off the radiator.
Remove the fan blade using a ratchet, ratchet extension and socket.
Rotate the belt tensioner pulley using a breaker bar and remove the drive belt.
Detach the water pump pulley using a ratchet, ratchet extension and socket.
Pry off the access plug from the upper part of the timing belt cover using a small standard screwdriver.
Set the transmission to Neutral and apply the Parking brakes.
Rotate the crankshaft pulley with a ratchet, ratchet extension and socket to align the "O" mark on the crankshaft pulley and the "O" mark on the belt cover.
Look through the cover access hole. If you see another timing mark on the camshaft sprocket aligned with the mark on the inner belt cover, cylinder number 1 is at Top Dead Center (TDC). If not, rotate the crankshaft one complete turn again and check for the alignment marks.
Unscrew the four mounting bolts and the Phillips screw next to the access plug from the timing belt cover using a ratchet, ratchet extension and socket and Phillips screwdriver.
Detach the crankshaft pulley using a ratchet, ratchet extension and socket and remove the belt guide (large washer) from behind the crankshaft pulley. You may need a pulley remover to take the crankshaft pulley off. If so, you can rent one from most auto parts stores.
Loosen the adjusting bolt on the tensioner pulley assembly using a ratchet, ratchet extension and socket.
Rotate the tension spring rollpin (this is the screw next to the adjuster bolt on the tensioner pulley assembly) away from the timing belt using timing belt tensioner wrench number T74P-6254-A. As you hold the timing belt loose, tighten the assembly adjuster bolt to lock the tensioner using the ratchet, ratchet extension and socket. Now remove the tensioner wrench.
Remove the timing belt.
Install the new timing belt starting at the crankshaft sprocket. Route the belt in a counterclockwise direction over the auxiliary and camshaft sprockets. Properly engage the belt lugs on the sprockets' teeth and keep any slack on the belt to the right side, between the crankshaft and camshaft sprockets. Make sure not to rotate any of the sprockets as you install the timing belt.
Loosen the adjuster bolt on the tensioner pulley assembly so the tensioner rolls against the belt. If necessary, push the tensioner pulley against the belt with a large standard screwdriver to remove any remaining slack on the belt.
Make sure the transmission is in the Neutral position and the Parking brakes are engaged.
Rotate the crankshaft two complete revolutions so that cylinder No.1 is back in TDC. This will help to tighten the timing belt on the sprockets.
Tighten the adjuster bolt on the tensioner pulley assembly between 14- and 21-foot lbs. (19.0 to 29.0 Nm) using a torque wrench.
Tighten the tension-spring bolt between 28- and 40-foot lbs. (38.0-54.0 Nm) using the torque wrench.
Install the belt guide (large washer) and the crankshaft pulley. Tighten the pulley bolt with the ratchet, ratchet extension and socket.
Install the timing belt cover with a new gasket using the ratchet, ratchet extension and socket and Phillips screwdriver.
Reinstall the water pump pulley, drive belt, fan blade and upper radiator hose.
Refill the cooling system with coolant.
132 views
Usually answered in minutes!
×