I brought my 2002 mitsubishi galant to the garage to have the timing belt replaced because the mileage was up, the told me two of my 16 valve got bent and showed me a great amount of carbon build up on one of the valves. can that be the reason when they got bent????
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OK, you want to know if the 2004 Galant is an interference engine, because of a broken timing belt. Your car has the 2.4L engine, and its not quite an interference engine, but its very close. A broken belt MIGHT not have damaged valves when the belt failed. Your garage should be able to look at the valve gear and see if any valves are jammed. It's also possible to look in each cylinder with an endoscope camera for any valve damage. A new belt can be fitted, and the engine turned over to test compression. If there are problems spotted, then the head has to come off and the the damaged valves replaced.
Sorry to say the 4 cyl is an interference engine and I think the V6 is too. So odds are the valves are bent if the belt broke while the engine was running.
It depends on how much damage the valves did or didn't do to the pistons when they hit and bent. At the very least you're looking at a cylinder head rebuild job. But if the valves hit the pistons hard, you're looking at a new engine.
Are you sure it was timing belt? If so. When you crank the engine, does it turn kinda fast without making a wump wump sound? When the timing belt broke it may have done some hidden damage. Its possible it may have bent the valve stems by piston hitting them because the timing to move them was off. You need to perform a compression test on all cylinders. Borrow or rent a compression gauge from an auto parts store. They will tell you how to use it, what to look for. If compression is bad, you may have to remove the cylinder head and have a valve job done. Except that you need to replace some of the valves. This calls for some skill or at least good apptitude in mechanics. OR somthing did not go right with the timing belt install.. Thats all I can do for you now. Check the compression. Good luck.
Timing belts should be changed at around 60,000 miles on engines with timing belts-especially on 'interference engines', which are engines that, when the belt breaks while the engine is running, will at least damage the valves and sometimes even pistons. You do not say what engine or model car your Mitsubishi engine is, but most Mitsubishi engines are interference engines. Better safe than sorry.
Hello bev7181
If you had a sudden complete loss of compression in all 4 cylinders, the timing belt most likely let go. Unfortunatly the mitsubishi engine is whats known as an interference engine. This means that
without the the timing belt to keep the crankshaft and camshaft turning in sync, a piston can be
coming up while the valves are coming down where they collide, causing bent valves and/or a hole
in a piston. I wish I had better news. Hope this was helpful
Uh-oh, the belt probably jumped. If that's the case, most of them are interference engines,which means alot of bent valves. The head will need to be repaired or replaced as well as the belt & if you do it yourself, don't even be off one tooth with the timing marks or it'll bend them again.
remode all plugs and turn the motor over by hand
that will tell you if it a zero tol motor
remember to insert 1 plug at a time to see is the piston has compression and make sure if you fine a bad cyl to spin the cam a couple of degres to make sure it is just open valves and not bent or broken valves
if for some reason with plugs all out and motor will not turn then it is a zero tol motor and will likely need a head job with the timing belt
nO! dont get scammed they messed up and had the timing off and it fired your valves off at the wrong time and bent them dont take it to anyone else ...take it to the manufactures and let them know what happened and i would get in touch with the BBB.... see your timing belt turns your camshaft which turns your pistons up and down now if you timing is off your piston will go up at the wrong time and force all that combustion back at your valves which are made up of light metal and then they bend .....call the garage you went to and let them know that it was there fault and you want it fixed ......this really makes me mad being an mechanic myself. I hope this helps you a little.
Should be on your 2nd timing belt. If you have the 4cyl engine there is a balance belt that needs to be changed also. Mitsubishi recomends replacement at every 60,000 miles, your 10k over. Most of the time these motors are not interferance engines, But I have seen a few that broke a belt at high rpm that did bent valves......
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