i know nothing about mitsu, but i always hear ppl talk about crankwalk in the 4g63, whats the lowdown on it, what years is it found in? what can u do to prevent it? info plz!
crankwalk issue
i know nothing about mitsu, but i always hear ppl talk about crankwalk in the 4g63, whats the lowdown on it, what years is it found in? what can u do to prevent it? info plz!
Well any engine can crankwalk as I have heard of Supra inline 6's with the problem but the 7 bolt 4G63 that ran from mid 92-99 are known to have had many thrust bearing problems. My 95 TSi has been lucky so far but it was a one owner car ordered new by a 40+yr old musician who did all the service/oil changes etc.
Mitsubishi claims MY99 was a "resolved year" but I know of one 99 MY GSX owner whos 7 bolt walked.
98/99 motors are much less likely to crankwalk, however not as unlikely as a 93-94 block.
the 95s are the next "most likely"
then 96s,
then 97s win the "most likely to crankwalk award"...
Someone on dsmtuners compiled a veritable ton of information on crankwalked engines... 97s made up a Huge portion of the overall number of cases.
6 bolt 4G63's were from 89-mid 92. A 6 bolt 2.3 liter in a 2g FTW IMHO.
We have tried every trick in the book. If it is going to walk, it is going to walk. We put one together with a 95 block and did some tricks to it. Before we pulled it from freeze plug issues it had over 15,000 miles on it. We finally put it back in and the machine shop bored it, line bored it, turned the crank and some other stuff. Walked in 5 miles. Same block same crank. We had even more tricks for it as well. Even had a locals so called "crank walk fix" plus all of our stuff. Tried a few more secrets and put new bearings in it, walked in 1/2 mile. Probably walked as we were adjusting the clutch. Some walk some don't. Finally put the aluminum rod six bolt in. No troubles. That is until we break a crank. Just go with the six bolt and be done. We even tried a new design motor, 1G 7 bolt, they all will do it eventually. Damn mitsubishi. Evo's don't do it(Evo 1-9). Fuckers. We did everything we could to keep oil on the bearings, from cutting the bearings, cutting grooves in the bearings, drilling holes in the oil journal and matching a hole in the bearing, with and without oil squirters, chamfering oil holes, adding material to the block and crank via nitriting. 7 bolts blow.
Steven
But it isn't the only Mitsubishi engine with the issue. The 6G72 in the 3000GT VR-4 and Dodge Stealh R/T Twin Turbo were also designed with small bearings and bad oiling.
the ones that crankwalk are the 2nd gen eclipses. the ones that do not are the 1st gens that are i think 90-94. all you need is the 1st gen block with the 2nd gen head
There have been some articles about how to prevent crank walk and what causes it. There is something that you can weld up to fix it.
KA-T!!!!
Crankwalk is a problem that 2gen DSM's are known for, but it isn't as bad as they say the problem is. I'd probably say 7-8% will have a case of crankwalk. But like motormouth said, there's ways to prevent it and reduce the likeyhood of it happening.
AIM: briang1084
1997 Mitsubishi Eclipse GS-T (Back in action...)
2001 Acura 3.2 CL (Soon to be retired....)
Owner - Essence Technology - Computers & More...
Crankwalk in the 6G72 is very rare, and not a problem anyone in the community is very concerned with. It does happen as it could happen in any engine, and it did actually happen to me. But the same time, I spun all 6 rod bearings, bent 12 valves, cracked 3 pistons, and spun several main bearings. Needless to say, I fucked that engine up.. LOLOriginally Posted by IronEagle
Anyways, on the 6G72 we just have a horrible oiling system that causes rod bearings to spin like crazy.
Back on track.. the only thing I know about crankwalk is one simple way to help prevent it is to NOT use your clutch when starting the car. Expecially with the use of an aftermarket pressure plate, you will put excess unneeded pressure on the thrust bearings.
Would this be a bad time?
bwahahahaa
Mine really dosn't leave the garage. People across the street think it is a tool bench.
The best theory I have heard and now believe is the blame placed on the oil squirters. Basically debris causes the spring to stay open all the time thus squirting oil at idle. With the oil squirters fully open at idle, there is a huge pressure drop causing lack of oil being fed to the main and thrust bearing. What do a lot of people do when they come to a stop or sit at a light? They are holding the clutch in. This in turn causes the trust bearing to take a severe beating because it is not getting any lube.
Thinking about buying a real car?
meh, ive been afraid of gettin a 4g63 car b/c of all the stuff i hear about them. i saw a gsx on autotrader LINK
just dotnknow about payin 5k for aa 1995, i guess its worth it, but i dont i coudl have it as a daily.
Crank Walk is WAY overrated. Of course your going to hear about all the horror stories more. How come no one ever just talks about how good their motor is doing and how many miles they have on it without problems? Plus you have retards who boost 20lbs on a 16g with stock fuel, blow it up and post up saying.. "yea, my crank walked today. DSMs suck"
i know about how great the motors are..i just woul hate to buy oine and spend time fixing it tan driving it
I understand what your saying, but like I said... Crank walk is a rare thing. Its sounds common because thats all you see posted. I say you buy the car and enjoy it. It is a very nice platform to build a street monster.
Actually DSMer has a point.....complainers are louder then happy people.
That being said I don't really know much on the subject.
man i dont even want a street monster, if i did i would have kept my protege and kept goin. i jsut wish the one i was lookin at was newer.
looka t this one im considering takin my svt up there and offerin the guy a straaght up trade. My car has less miles and is newer, and i would be out of the payments. U think 124k is too high mileage for that car/price?
Last edited by JITB; 09-05-2006 at 11:42 PM.
i PERSONALLY have seen 7 eclipses suffer from crankwalk...quick question
if it is overrated, how many engines mitsu wise do you see with incredibly high mileage?? i dont think ive EVER seen one hit 250k...ive driven 3 hondas and a toyota with over 300k and ALL still run
FUCK B&D COMMUNICATIONS!
this is the one im talkin about
http://www.autotrader.com/fyc/vdp.js...=en&cardist=18
lotsA miles for 5k....awd gets costly too
FUCK B&D COMMUNICATIONS!
yea but i dont have many too choose from...lol
thats gods way of saying dont buy one
FUCK B&D COMMUNICATIONS!
I've actually heard of a few 4g63s that have run for a long time (and them having a decent amount of mods). Most 4g63s that are heavily modded most likely dont last as long as expected, but of course they wont. If you put lots of boost and abuse to any motor, it will eventually wear it out. I personally have witnessed a lot of friends who beat on their hondas and have them fail (usually rod bearing or main). 7 bolt 4g63 can handle 400whp reliably with a good tune. That just goes to show you how strong they are.
When all is said and done, it is good maintenance and tune that keep a car running good.
DSMer look at that gsx in the link i posted tell me what u think? im talkin to the guy about trading in my svt as a straight up trade, so i can get out of my payments.
Seems like a well kept car. It is bone stock, that is one awesome attribute about it. You can't beat bone stock. There is way better chances that it has not been beat on, and the motor hasn't gone beyond its designed limits. Although it may have high mileage, I know of a lot of guys with high miles still boosting hard. Mine has 120,000+ and i boost 20-22psi daily on a 50 trim.
The car is a 95 so a 99% chance it has an EPROM ecu (i can explain if you need). That way you can get it chipped real easy and get compensated for bigger injectors down the road with a handful of other neat features. But if your wanting this for just a daily driver, then I'd say it would still be good. It has 120,000+ miles, you know it was daily driven. Just know that you have a 10+ year old car and its GOING TO NEED MAINTENANCE. This car is old, and needs tlc every once in a while. If you want a car that you can just turn key and drive for thousands and thousands without doing anything, I'd say forget it.
I'm not saying this car is awesome with reliability, but its not a lemon. There has just been a bad name put on dsms because of idiots and the emphasis of bad situations.
haha sound like your describing a starion
Mine really dosn't leave the garage. People across the street think it is a tool bench.
Read my thread.
http://forums.importatlanta.com/showthread.php?t=57298
Make an educated decision. If you buy a 2g, make it 97 and up. They look the best. You can do a front end swap but why if you can just buy one.
If you get a 1g try to find a 6 bolt/4 bolt lsd rear Plymouth Laser. Real hot.
Dont buy a Galant VR-4. One because you knock on mine, and two they have too much style for a DSM noob. Good luck.
its not the 2nd gens that have the crank walk its the 7bolt motor period. the best way to keep it from happening is to build the motor right and maintain it as best as possible. 4g63 are strong ass motors but they are moody as hell. treat it right and i promise it will treat you right. i have a 6 bolt motor that is now in its 3rd car because i managed to wreck the other two and when i pulled it out this last tiem it was the cleanest engine ive ever seen i didnt even have to rebuild i just rplaced some seals and i was good to go and it still runs as strong as ever.
91 Eagle Talon TSI AWD - Deceased
95 Eagle Talon TSI AWD (6 bolt swap) - Sold
92 Eagle Talon TSI (6 bolt/20g turbo) - Current
Crankwalk was most common with the 95-96 eclipses. Their motors are slightly different from the 97+ 2gens. If your gonna get an eclipse, then you might as well get used to working on it all the time. I don't think there's anyone who posted here who doesn't have something wrong with there DSM.
Mine has 150k+ miles on it. Only thing that's gone wrong is a bad oil pump.
'09 M3 E92 DCT
Knock on wood, right now the Galant is running perfect.
Except, well shit nevermind. Yeah buy a tool box and service manual.
definitely. that should be his first "mods". haha
its people like this that spread b.s.
Last edited by DSMer; 09-11-2006 at 02:49 AM.
Yeah I mean its not EVERY 7 bolt thats crap. Its just out of the two the 7 bolt tends to do it more.
Dsms will put a smile on your face , especially if you have never driven a well built 4g63.
DSM = LOVE HATE relationship
03 CBR 600 F4i
96 E36 Frankenstein
not a single problem with my 1997 2G. Running a ported/clipped 20G turbo...
HOWEVER, it is not dailey driven any longer.
2007, 2008, & 2009 IASCA National SQi Champion Pro Ultimate
Total of 5 National Sound Quality Championships.
I know this is old, but my 95 gst has 164,XXX miles on it with minimum maintenance, No problems yet. Oh and I beat on it every once in a while
Ive got right at 196K on my block, never touched internals, 2nd owner, drive it hard, and still no issues with Crank walk. dont be scared.
Posting Permissions
Reply With Quote
