Greetings folks, I'm looking for anyone with knowledge or experience with a 2.5L that has gone through the timing chain fun. A 2005 2.5L 65K miles rolled in dead, no compression and making a lovely clacking noise when cranked. We had heard some rumors of these older 5 bangers eating chains or chains eating motors (or both).
Tearing into it we got the top cover off to access the shorter of the two chains (top chain) and found nothing really broken but the tensioner was useless and must of led to the chain skipping and the valves crashing into each other with the intakes hitting the pistons, etc, etc, etc.
Other than the tensioner being junk everything else looked pretty good except for two gears with awfully worn and very sharp teeth. Guides weren't too bad, nothing showing lack of oil except for those two gears and even the chains weren't too bad.
Somehow the cams didn't break and actually look good, too bad all the valves are bent and run into each other, that was the clacking noise and you can see it happen through the intake ports when turning by hand. Now the entire motor is out and the part list begins. Can't believe the owner wants to fix it but who am I to say?
My questions to any and all out there is there an inherit oiling problem with this engine? Bad gears, bad tensioners? Just seems a bit young for an engine to come apart like this. I'll try and post some pics later and thanks to anyone with knowledge.
Tearing into it we got the top cover off to access the shorter of the two chains (top chain) and found nothing really broken but the tensioner was useless and must of led to the chain skipping and the valves crashing into each other with the intakes hitting the pistons, etc, etc, etc.
Other than the tensioner being junk everything else looked pretty good except for two gears with awfully worn and very sharp teeth. Guides weren't too bad, nothing showing lack of oil except for those two gears and even the chains weren't too bad.
Somehow the cams didn't break and actually look good, too bad all the valves are bent and run into each other, that was the clacking noise and you can see it happen through the intake ports when turning by hand. Now the entire motor is out and the part list begins. Can't believe the owner wants to fix it but who am I to say?
My questions to any and all out there is there an inherit oiling problem with this engine? Bad gears, bad tensioners? Just seems a bit young for an engine to come apart like this. I'll try and post some pics later and thanks to anyone with knowledge.