RE: Question - 2002 Montero Sport XLS
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RE: Question - 2002 Montero Sport XLS - 1/3/2007 12:51:51 AM
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off roader
Posts: 419
Joined: 10/20/2005
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Not likely I suspect. You'd have a ton of smoke blowing past your rings from too much pressure. That's what happened when I over filled my 3.0L SOHC by about a quart.
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RE: Question - 2002 Montero Sport XLS - 1/3/2007 8:07:54 AM
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nashje
Posts: 7
Joined: 1/2/2007
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What is an interference engine? Is the one I have considered one?
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2002 Montero Sport XLS
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RE: Question - 2002 Montero Sport XLS - 1/3/2007 12:44:51 PM
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off roader
Posts: 419
Joined: 10/20/2005
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quote:
ORIGINAL: nashje
What is an interference engine? Is the one I have considered one?
An interference engine is one where the valves will hit the pistons if the timing is not set correctly. If the timing belt breaks then you will usually need to replace your valves and possibly damage your head/piston. In a non-interference design the valves don't hit anything when the timing is off or the belt breaks.
I'm not sure if yours is an interference motor or not. I know mine isn't so luckily if I break a timing belt, I'll simply coast to the side of the road (with luck).
Some engines (like my 95 VW Golf GL 2.0L) are not interference engines until you get above 2500 rpm. Then they become interference engines due to centrifugal acceleration causing the valves to move farther into the combustion chamber potentially hitting the piston and head if a timing belt breaks..
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RE: Question - 2002 Montero Sport XLS - 1/3/2007 2:53:23 PM
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nashje
Posts: 7
Joined: 1/2/2007
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I really don't know anything about engines. I can change oil, filters, batteries, alternators, and such. Beyond that, I'm lost. I appreciate the info you are providing. I kind of want to be able to at least somewhat understand what the mechanic is going to tell me. Thanks.
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2002 Montero Sport XLS
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RE: Question - 2002 Montero Sport XLS - 1/9/2007 1:21:23 AM
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flunnky
Posts: 9
Joined: 1/9/2007
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i am new to mitsubishis but am just going to have to say no....a car will not run without a timing belt (you did say it still runs right?). a tooth could have broke and timing slipped...possibly. with white smoke pouring out of your truck i would be leaning more towards a nasty head gasket blow! water entering the fuel/air mixture in the chamber will/can cause the bad shuddering you describe. as for the broken belt sound....idk. could poss be that the gasket blew outward and essentially causing an exhaust type leak which can sound possibly like that...i guess...??
please explain the "broken belt" type noise in more detail. could it also be described as a pressure cooker? take a good whiff of the exhaust fumes....smell like antifreeze or sweet? whats the coolant level like? pull the plugs and see if there are any really clean ones and let us know what you find...
< Message edited by flunnky -- 1/9/2007 1:22:52 AM >
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RE: Question - 2002 Montero Sport XLS - 1/9/2007 6:37:46 AM
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flunnky
Posts: 9
Joined: 1/9/2007
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i dont know what your bitching about. a car will NOT run with a broken timing belt! if timing slipped thats another story but it isnt going to be making a flapping noise just slipped. the "flapping" noise could also be mistaken for backfiring, vlave/s hitting the piston or the engine shaking againts a mount or something. im not sure if the guy knows thi diff between any of the above.
in the future i will refrain from using the word water to describe coolant....which is a mix of water and antifreeze in MOST everyones vehicles. water, coolant, antifreeze....i doesnt ****ing matter which one is causing the white smoke. when your talking about a blown head gasket, ppl will understand that the word "water" means the **** that circulates through the engine and helps keep it cool.
bottom line....he has a blown head gasket. rather it was caused by timing slipping or if timing has slipped is yet to be known! however, the belt cannot be broken.
stop being a little bitch...
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