Question about 2003 Mitsubishi Galant

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The timing belt on my 2003 galant broke. A shop is saying they can replace the head while another shop said I need a new engine. Do I definitely need a new engine? Can I get away w/ just fixing the heads? I was told than an interference engine REQUIRES a new engine, NOT a head replacement. Is this TRUE?

Posted by el_washingto on


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Ted Schore

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4 or 6 cylinder? you say "heads" so I assume its a V6? A interference engine does NOT require a new engine. unless upon disassembly there is severe piston damage. A 2003 Galant isn't going to be worth putting in a $ 2500-3000 new engine. A car that has had scheduled service usually doesn't break the belt, its replaced long before that happens. Yes, you can take the heads off and get it serviced, new valves etc. On a V6 you also want to replace the water pump.

Posted on Sep 22, 2011


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I hate to have to tell you this, but the 2.4L (4g64) is an interference engine. That means when the timing belt broke, the pistons hit the valves, causing at least a few of them to bend.

here is the overhaul section of the factory service manual for the 2.4L. its technically from the eclipse manual but it will work for the galant. The intake manifold and exhaust manifolds may not be the same but the head, block and timing belt sections are exactly the same.

also here is a walk thru (with pics) for the timing belt procedure:
denlorstools com

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