Question about 1990 Mitsubishi Montero
I was attempting to take off the crankshaft pulley to put in a new seal and i broke the bolt that holds the pulley to the crankshaft (the pulley is off now by the way). It broke off about 3/4 inch inside the hole. How in the world do I get this off?? Also, i can't even budge the timing belt gear that is on the crank, any ideas on how I can remove that as well? It doesn't appear like you could use a gear puller on it.
You will have to drill the bolt out completely. You could first try an extractor set, it will have to be drilled to the size on the extractor set, use a product called PB Blaster and let it soak for a few days reapplying every 12 hours or so. If it broke off you may not be able to get it out with an extractor set but use the biggest extractor that will fit. If you have the head of the bolt and any threads showing you will have to fid a HSS Drill bit a little smaller than the outer diameter of the threads. then carefully drill the bolt out, it will take forever so take your time, I have set up drills with blocks and bungee cords so it will drill itself without you being in atendance, but the drill has to be positioned precisely as to not damage the inside diameter of the threads for when you install the new bolt. I even went so far at times at home to install a video camera to a small tv inside the house so I could monitor if the drill had changed position. I recently had to do exhaust bolts (6) and a spark plug that had rusted and broken off inside the motor, just the threaded portion of the spark plug was all that was there.
Posted on Feb 12, 2009
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Posted on Jan 02, 2017
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Remove any oil or water on the idler pulley and keep it clean.
If the old timing belt is being reinstalled, make sure the directional arrow is facing in the original direction and that the belt and crankshaft gear matchmarks are properly aligned.
On 2S-ELC engines, make sure that the Matchmark on the oil seal retainer and center hole of the small hole on the camshaft timing pulley are aligned.
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