Question about 1993 Mazda 929
I have a Mazda 929 and the timing belt snaps when it was running. take ti to my mechanic and have change it but it won't start at all. we have set the timing withe the markers on the rollers. we haven't install the power steering, fan belt, radiator, fan and have tried to start the engine but it won't work.it cranking well but it won't start. have check the fuel form the tank. it's firing well and the spark plug.all OK. It's a very rare model around in my country and can be pretty tough to look for the right people for the job even parts i must say.it's our first car and i love to keep it though. please help.
Run a compression check on the engine, you may find several to all cylinders at zero to very low readings due to the engine being an interference engine--which means that if the timing belt breaks while running, valves and pistons will lose their reference to each other and cause several to many collisions between those multiple components. The compression check will confirm this. The proper fix in this case is to remove the cylinder head(s)(if a V6) and inspect the valves and pistons for damage, replacing either bent valves, or punched through pistons. In any case, this will likely cost a bundle of cash to fix. If not reassembled correctly, this problem could reoccur when you try to start it again. Best to have a lot of confidence in the person doing the repairs! You might look at replacing the engine outright with a new or professionally rebuilt engine from another country. The proper time to replace the timing belt is before it breaks! Hope this helps!
Posted on May 14, 2010
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Posted on Jan 02, 2017
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