Question about Cars & Trucks
1992 Mazda Protege 1.8L. Trying to remove the crankshaft bolt so I can change the timing belt. Tried breaker bar/extension pipe/5thgear/brakes combo - forced clutch to slip with my 200 lbs bouncing at 3 and 1/2 feet leverage point. Tried impact wrench at 95 psi, repeatedly, - nothing. Tried breaker bar braced against ground while trying the starter (including while using jumper from another car to be sure there was plenty of power) - nothing. Looking for a special tool to hold the crankshaft by the pulley bolts, but I can only find for mazda up to 1991 - mine's a 1992. Are there more effective tricks I haven't tried? Or does someone know where I can get a STRONG crankshaft bolt removal tool?
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
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.
Posted on May 12, 2009
Tips for a great answer:
Apr 22, 2015 | 2002 Mazda Protege
Dec 18, 2014 | 2000 Mazda Protege
Nov 10, 2014 | 2001 Mazda Protege
Nov 10, 2014 | 2001 Mazda Protege
Jan 27, 2018 | Honda Passport Cars & Trucks
Oct 03, 2011 | 1996 Mazda Protege
Sep 08, 2011 | 1993 Mazda Protege
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.
Oct 11, 2010 | Ford Ranger Cars & Trucks
Aug 20, 2010 | 1992 Mazda Protege
64 people viewed this question
Usually answered in minutes!