Analyzing a critical engine flaw in the 4b11 by TTP
I know of at least 10 on the other forum but I can't post the links here so here are their names and thread titles;
Imsoevox - R.I.P...another 4B11 (Related)
legendary_wraps - Big problems.... (Not Related, Detonation.)
KARo7 - Blown engine!!?! (Not related, Overboost)
EvoX08 - Blown Up!!!!! (Not related, overboost w no tune, rods shot through the block)
Rik84 - 2008 Evo X - Engine Blown (Not related, low 3.5 quarts of oil)
nero - evo broke round 2! (Not Related. 1st time: Super low on oil due to a leak.
2.d time: crankshaft is being replaced. minor damage to it caused the rod bearings to start up again.)
Several others over there and if you look these ones up you can look up the other threads posted by the people and most had warning signs ahead. They always start out as higher rpm stutter or cutting out in 5th gear etc. I didn't read back through all of them but I believe these were all a combination of issues topped off by a bad fuel relay.
Imsoevox - R.I.P...another 4B11 (Related)
legendary_wraps - Big problems.... (Not Related, Detonation.)
KARo7 - Blown engine!!?! (Not related, Overboost)
EvoX08 - Blown Up!!!!! (Not related, overboost w no tune, rods shot through the block)
Rik84 - 2008 Evo X - Engine Blown (Not related, low 3.5 quarts of oil)
nero - evo broke round 2! (Not Related. 1st time: Super low on oil due to a leak.
2.d time: crankshaft is being replaced. minor damage to it caused the rod bearings to start up again.)
Several others over there and if you look these ones up you can look up the other threads posted by the people and most had warning signs ahead. They always start out as higher rpm stutter or cutting out in 5th gear etc. I didn't read back through all of them but I believe these were all a combination of issues topped off by a bad fuel relay.
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I have one of the early vins of 08s to roll out. 22000 miles and no really issues other than the crap tune it came with so far. For some reason though I have this gut feeling that I am on borrowed time.
^In other words spend the 20, 30 or 40 bucks (shipping included) and get a new relay!
With a looming issue like the relay one with the 4b11t and the limited amount of cases, it will be very hard to say that even the tight ring gap clearances are the problem i would think. Even if they are very tight. Unless the relay from those cars was tested as good.
With a looming issue like the relay one with the 4b11t and the limited amount of cases, it will be very hard to say that even the tight ring gap clearances are the problem i would think. Even if they are very tight. Unless the relay from those cars was tested as good.
Thats what I'm getting at none of them are related and almost all of them in some way lead back to a fuel relay; example the one you mark as related look at these threads he has.
EvoX of course then = forums/showthread.php?t=13445
On 4-18 he posts about having a fuel issue and people tell him "Relay relay"
Now on 5-16 motor blown --> all of them if you look through all their threads you will see the pattern of the same symptoms over and over.
EvoX of course then = forums/showthread.php?t=13445
On 4-18 he posts about having a fuel issue and people tell him "Relay relay"
Now on 5-16 motor blown --> all of them if you look through all their threads you will see the pattern of the same symptoms over and over.
^In other words spend the 20, 30 or 40 bucks (shipping included) and get a new relay!
With a looming issue like the relay one with the 4b11t and the limited amount of cases, it will be very hard to say that even the tight ring gap clearances are the problem i would think. Even if they are very tight. Unless the relay from those cars was tested as good.
With a looming issue like the relay one with the 4b11t and the limited amount of cases, it will be very hard to say that even the tight ring gap clearances are the problem i would think. Even if they are very tight. Unless the relay from those cars was tested as good.
why are the pistons braking - because the rings expanded
why are they expanding - because they are getting hot
why are they getting hot - because you're running lean
why are you running lean - because your relay is out.
why is your relay out - because its cheap ****
Chicken or the egg debating here, in the engineering world its about root cause and the 5 whys. Once you apply that to the ring theory it comes down to;
why are the pistons braking - because the rings expanded
why are they expanding - because they are getting hot
why are they getting hot - because you're running lean
why are you running lean - because your relay is out.
why is your relay out - because its cheap ****
why are the pistons braking - because the rings expanded
why are they expanding - because they are getting hot
why are they getting hot - because you're running lean
why are you running lean - because your relay is out.
why is your relay out - because its cheap ****
I kind of like this theory...
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I have heard of that one also.
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correct me if i'm wrong but what about the FQ400 that UKDM are getting ?
it'll most likely be running the same 4B11T as the rest of the world and it's putting out about 400whp which is around the mark where most of the engine goes kaboom
i mean , like if the FQ400 can do it on the same engine , there should be no reason why there's a limitation to the rest of the world's 4B11T
it'll most likely be running the same 4B11T as the rest of the world and it's putting out about 400whp which is around the mark where most of the engine goes kaboom
i mean , like if the FQ400 can do it on the same engine , there should be no reason why there's a limitation to the rest of the world's 4B11T
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