Question about Mitsubishi Montero Sport
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Posted on Jan 02, 2017
SOURCE: 1991 honda civic timing belt
lock a pair of vise grips to your flywheel.then rotate the engine till the vise grips are snug against the block and tranny.if u dont have a high torque impact gun you can use a half inch breakover bar with about a 6ft cheater bar.apply steady pressure until bolt breaks lose.the reason why the crank bolt is so tight is that every time you start the car it tightens the bolt.
Posted on Jul 28, 2008
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.
Posted on Oct 13, 2008
I just read this evening about a recall dealing with that very thing. Here is a description taken from intellichoice.com
ENGINE AND ENGINE COOLING:ENGINE Manufacturer Recall Number00V311001
Model AffectedMONTERO SPORT
DefectVEHICLE DESCRIPTION: PASSENGER VEHICLES: MIRAGE MODEL VEHICLESEQUIPPED WITH 1.5L ENGINES; MONTERO SPORT MODELS EQUIPPED WITH 3.0LENGINES; AND MONTERO MODELS EQUIPPED WITH 3.0L ENGINES. THE BOLTSECURING THE CRANKSHAFT PULLEY CAN BECOME LOOSE AND THE PULLEY COULDFALL OFF THE VEHICLE.
ConsequencesTHE CONDITION CAN RESULT IN A LOSS OF POWER STEERING ASSIST, INCREASING THE RISK OF A CRASH.
Corrective ActionON THE MIRAGE VEHICLES, THE DEALERS WILL INSTALL A NEW, IMPROVEDCRANKSHAFT PULLEY BOLT ON THE OLDER ENGINES. ON NEW ENGINES WHICHALREADY HAVE THE IMPROVED BOLT, THE DEALER WILL TIGHTEN THE CRANKSHAFTPULLEY BOLT TO THE CORRECT TORQUE SPECIFICATION. ON THE MONTERO MODELS,DEALERS WILL TIGHTEN THE CRANKSHAFT PULLEY BOLT TO THE CORRECT TORQUESPECIFICATIONS. IF THE BOLT IS DAMAGED, IT WILL BE REPLACED.
NotesOWNERS WHO DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT THE MANUFACTURER.
That being said, there is no reason the dealer should have needed to fiddle with the crank pulley to do the cam plug seals. I have to replace mine also, and from all the info I have read to prepair for it, its rather straight forword and simple to do as attested by this answer to FAQ's from this page about 3/4 the way near the bottom:
Since you have had the truck since new, do you recall having this recall service performed? If it wasn't, hey, you might have a strong case to have Mitsubishi pick up the tab for repairs. It may even be possiblewell that the tech attempted to perform the recall and screwed up. In any case, I would be doing some Googling into this known issue, starting' with the Mitsubishi Montero Sport forum FAQ's referenced in the above link, and this owners forum as well:
Both have a great wealth of info about our babys. Hope my long rambling helps in some way. God bless, and good luck with your issue.
Dave B. in PA
Posted on Nov 25, 2008
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
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
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