BLOWN motor Part 2 (upper end pics)
#1
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BLOWN motor Part 2 (upper end pics)
Well the head has been ripped off of the block, no resolution yet but the District Rep sent his pictures to Mitsu in
California and I should find out sometime tomorrow if the warranty is holding I guess. I was able to get down
to the dealership and take photos myself, here is what we are looking at.
For those of you not familiar, my first thread is here: https://www.evolutionm.net/forums/sh...1&page=1&pp=15
Cylinders
Cylinder walls
Cylinder #1 wall
Cylinder #2 wall
Cylinder #3 wall
Piston #1
Piston #2
Piston #3
Piston #4
Cylinderl #1 valves
Cylinder #2 valves
Cylinder #3 valves
Cylinder #4 valves
Plugs #1 & #2
..Piston #1 took the most beating, probably because it was the first rod to let go. None of the pistons show any
major signs of detonation (as far as I can tell), nor do the plugs, which is good. I'm not sure how exactly the wall
scoring came about though, wether it was a matter of the crank being shifted causing a messed up stroke or
what. Wall scoring is front and back of the cylinders, not side to side.
California and I should find out sometime tomorrow if the warranty is holding I guess. I was able to get down
to the dealership and take photos myself, here is what we are looking at.
For those of you not familiar, my first thread is here: https://www.evolutionm.net/forums/sh...1&page=1&pp=15
Cylinders
Cylinder walls
Cylinder #1 wall
Cylinder #2 wall
Cylinder #3 wall
Piston #1
Piston #2
Piston #3
Piston #4
Cylinderl #1 valves
Cylinder #2 valves
Cylinder #3 valves
Cylinder #4 valves
Plugs #1 & #2
..Piston #1 took the most beating, probably because it was the first rod to let go. None of the pistons show any
major signs of detonation (as far as I can tell), nor do the plugs, which is good. I'm not sure how exactly the wall
scoring came about though, wether it was a matter of the crank being shifted causing a messed up stroke or
what. Wall scoring is front and back of the cylinders, not side to side.
Last edited by Stew; Mar 12, 2006 at 02:26 PM.
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Originally Posted by evo637
Are they basically going to replace your whole motor
#7
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you were a little bit lean looking at the piston tops, but not too bad. I see no obvious signs of knock either. Hopefully Mitsubishi will do right by you. From my experience as an engine builder/racer, I would say the flash and modifications likely had no effect on the damage.
The only thing that they could probably get you on is if you had the factory rev limiter removed and they claim that the rod bolts were stretched by over-reving the engine (whether you did or not). Good luck man.
The only thing that they could probably get you on is if you had the factory rev limiter removed and they claim that the rod bolts were stretched by over-reving the engine (whether you did or not). Good luck man.
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#13
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I dunno, how can that motor get all that damage - balance shaft blown through the block, rods ripping through the oil pan, and broken valves , not to mention the torque it would take to crack your bellhousing while just cruising along on the street in 5th gear at low rpms?
Are you triple dog sure with a cherry on top you didn't over-rev the hell out of that motor?
Although I can't imagine an over-rev would cause that much damage. I major bottom end seize could probably though.
Very interesting.
Are you triple dog sure with a cherry on top you didn't over-rev the hell out of that motor?
Although I can't imagine an over-rev would cause that much damage. I major bottom end seize could probably though.
Very interesting.
Last edited by razorlab; Mar 9, 2006 at 05:30 PM.
#15
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Originally Posted by Greg K
if you read the previous thread a major bottom end sieze is exactly what happened.
I could see it doing that much damage if the motor seized in the upper RPM's but cruising rpms?
Last edited by razorlab; Mar 9, 2006 at 05:50 PM.