Lancer Evolution Reliability/Quality/Durability
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TR Balla Donor Supreme
Joined: Feb 2004
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Originally Posted by heavystrike
When did the evo switch over to the 7bolt motor? With the evo4 right? How many evo4's and up have you heard of getting crank walk. I'll give you a hint... as many as you have heard of 1g dsm's getting crank walk. Little to none.
The evo is like any other car if you do not know what you are doing or try to do things cheap you will lose things like reliability and durability.
The evo is like any other car if you do not know what you are doing or try to do things cheap you will lose things like reliability and durability.
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Joined: Jan 2006
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Originally Posted by BROTHERS
jerry has an evo 1 which comes with a 7 bolt 4g63 and it also crank walked so they did have the problem with the early evo also.
And this is the first I have ever heard of any evo getting crank walk. I have not seen any documented proof and I don't know who Jerry is or anything about his car so as far as I am concerned it holds about much truth.
TR Balla Donor Supreme
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Originally Posted by heavystrike
I thought evo's 1-3 came with 6bolt 4g63's...
And this is the first I have ever heard of any evo getting crank walk. I have not seen any documented proof and I don't know who Jerry is or anything about his car so as far as I am concerned it holds about much truth.
And this is the first I have ever heard of any evo getting crank walk. I have not seen any documented proof and I don't know who Jerry is or anything about his car so as far as I am concerned it holds about much truth.
Non DSM.....DSM guy
Joined: Apr 2002
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Originally Posted by heavystrike
I thought evo's 1-3 came with 6bolt 4g63's...
And this is the first I have ever heard of any evo getting crank walk. I have not seen any documented proof and I don't know who Jerry is or anything about his car so as far as I am concerned it holds about much truth.
And this is the first I have ever heard of any evo getting crank walk. I have not seen any documented proof and I don't know who Jerry is or anything about his car so as far as I am concerned it holds about much truth.
They are 7 bolts and the reason you dont hear about them is they dont exist here and they dont have a crank trigger like I said.
2g`s dont die because the crank starts walking a bit. They die because once it starts walking it gets picked up by the crank sensor and that shuts the car down. I have seen 1g`s with cranks that didnt just walk they got up and ran. You just dont hear about them because they will run for along time before they do enough damage to kill the motor.
It does seem to be more common in the 7 bolt motor though.And I believe there is more to it than just the 7 bolt crank not beeing nitrate coated like a 6 bolt. But I am sure it helps contribute to it.
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Tom
Tom
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Originally Posted by BROTHERS
I know this info I also know that the 7 bolt cranks are not nitrated from factory they scar very easy low tolerance to low oil pressure where the 6 bolts are made of a harder material and could hold up a little longer to low oil pressure and we all know that eclipse have really low oil pressure on idle thats why its not good to hold your clutch in at a light and its good to do the clutch mod so you dont put any stress on the crank. I have been dealing with these cars now for several years now even discuss this topic with jerry aka lancerman and we both agree that the design of a 7 bolt block is better just the crank is weak and the evo is made with the same design as well but if you nitrate the crank I think that would solve the problem besides that its an awsome design.
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good read
http://tampabay.dsm.org/phpBB/viewtopic.php?t=13657
The evos have a couple of small things that help fight the crankwalk issue. They are required to run sythetic oil. Sythetic oil is way better at protecting metal to metal contact. They also have a improved thrust bearing design. The evo8 engine is the same as an evo4 engine. If you do a search on crankwak in evolutionm you will find there are already cases of crankwalk with the 8s. And people in other countries often chime in with comments on how bad the evo4s are known for crankwalk. Why the heck mitsu didn't nitride the cranks in 7 bolt motors is beyond me. We all know what happens when cam manufacters send out bad batches of cams. It happened to crower, it happened to web. Cam batches where sent out that were not nitrided.
http://tampabay.dsm.org/phpBB/viewtopic.php?t=13657
The evos have a couple of small things that help fight the crankwalk issue. They are required to run sythetic oil. Sythetic oil is way better at protecting metal to metal contact. They also have a improved thrust bearing design. The evo8 engine is the same as an evo4 engine. If you do a search on crankwak in evolutionm you will find there are already cases of crankwalk with the 8s. And people in other countries often chime in with comments on how bad the evo4s are known for crankwalk. Why the heck mitsu didn't nitride the cranks in 7 bolt motors is beyond me. We all know what happens when cam manufacters send out bad batches of cams. It happened to crower, it happened to web. Cam batches where sent out that were not nitrided.
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want a piece of the yellow car? (buy it)
you have to beat the blue car first
and then you have to take on the IV
my favorite quote
"if the solution is simple, God is answering"
want a piece of the yellow car? (buy it)
you have to beat the blue car first
and then you have to take on the IV
my favorite quote
"if the solution is simple, God is answering"
