Guest verbal Posted August 30, 2007 Share Posted August 30, 2007 hey guys sorry for making this post, I have tried searching but it had turned up nothing so take it easy on me From what I've read on many forums supra's are supseptable to crankwalk? just wondering if anybody here has experienced it and if so are you running modified as in, flywheel/clutch/smaller pulleys etc. Its expensive to fix so this right now is causing me hesitation haha thanks in advance. Link to comment Share on other sites More sharing options...
DannyB Posted August 30, 2007 Share Posted August 30, 2007 What is this crankwalk you speak of Link to comment Share on other sites More sharing options...
RobSheffield Posted August 30, 2007 Share Posted August 30, 2007 Perhaps links to the threads on the forums you speak of? Link to comment Share on other sites More sharing options...
Alex Posted August 30, 2007 Share Posted August 30, 2007 It's not a major occurance over this side of the pond as we don't tend to mess with the engine as much as the folks on SupraForums. There is a huge thread on SF about crankwalk...I doubt we can add to it suffice to say it's probably down to poor workmanship and choice of components. Link to comment Share on other sites More sharing options...
JamieP Posted August 30, 2007 Share Posted August 30, 2007 Ive heard of it on massive power cars, i think the envy car had suffered with it at some point, i fitted large billet main end caps to my old car as recomended by envy to stop it happening incase i went silly with the boost. Link to comment Share on other sites More sharing options...
Class One Posted August 30, 2007 Share Posted August 30, 2007 Ive heard of it on massive power cars, i think the envy car had suffered with it at some point, i fitted large billet main end caps to my old car as recomended by envy to stop it happening incase i went silly with the boost. Diff killer. Link to comment Share on other sites More sharing options...
ECK Posted August 30, 2007 Share Posted August 30, 2007 i went silly with the boost. yea we know!:dlol Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted August 30, 2007 Share Posted August 30, 2007 It's not a major occurance over this side of the pond as we don't tend to mess with the engine as much as the folks on SupraForums. There is a huge thread on SF about crankwalk...I doubt we can add to it suffice to say it's probably down to poor workmanship and choice of components. Yep! i would agree with that statement, the Supraforum bods seem to try to push big power without changing the way the clutch operates, so after a few dozen drag starts they get problems. Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 30, 2007 Share Posted August 30, 2007 I would be interested in knowing what this "crank walk" is all about, it sounds like typical US Supra forum drivel to me. The end float is controlled by the thrust washers, the centre main isn't going to be pushed forward, and the thrusts will only suffer abnormal wear if the clutch is wrongly set up, or the clutch is ridden constantly, and even ridden it won't wear very much. God knows what some people could achieve though, when they start playing with billet main caps, the potential for trouble there is immense given the chance :)Sounds like another excuse for poor assembly, like the faulty oil pumps and "weak" front seals to me. Link to comment Share on other sites More sharing options...
Terminator Posted August 31, 2007 Share Posted August 31, 2007 Crank walk is the phrase used when some one does not want to take responsibility for failures due to their crap workmanship. Link to comment Share on other sites More sharing options...
Jake Posted August 31, 2007 Share Posted August 31, 2007 Although, from what I've read on SF* it does only seem to happen on manual TTs . . . *I don't read much on there as I don't like the wheat/chaff ratio Link to comment Share on other sites More sharing options...
Guest verbal Posted August 31, 2007 Share Posted August 31, 2007 "Movement of the crank out of stock specifications. All cranks have L to R movement, to some extent, but an excessive lateral crank movement has bad reprocussions, such as hitting/grinding/destroyi ng the crank sensor. A "walking" crank necessitates an engine rebuild. Any car can crankwalk, but Mitsubishi Eclipses, Plymouth Lasers, and Eagle Talons with a 7-bolt motor are notorious for this problem. No recall was ever released as the problem was said to be isolated to a bad batch of cranks, which represented a fraction of the produced cars. Various theories of why crankwalk occurs and what years are most suseptible exist, but none are proven. General consenus is poor oil flow is one cause" is a quote I found Im not sure if you fellows are familiar with DSM back in the day they made dodge lazers, mitsubishi talons and the such, these engines were supseptable to 'crank walk.' From what I've read on supraforums.com they are blaming it on havnig a pull type clutch instead of a push type. a lot of people complaining about it have lightened flywheels and high rated clutches with heavy rated pressure plates. I am by no means saying this is true, I hate to believe that a Toyota would have this type of fault. but I hope you can understand when looking for issues before purchasing a car like this, coming across a forum where this pops up as a major issue I could not just overlook it without question. on supraforums they say that excessivly using the clutch or pumping it while the car is not on can do damage to the crank becasue there is no oil circulating or lubricating up the moving parts .they have even gone to the extent to write a walk through to start the car without depressing the clutch. which I thought was getting out of hand http://supraforums.com/forum/showthread.php?t=56195 if you read about half way down a guy named 'carhitect' gives what he says is the 'be all end all crank walk explanation' sorry to bother you guys with this question as it seems nobody here knows what it is lol. But Im glad it looks like 1 or 2 people know what I mean so I don't come across as a total loony. I just thought it was becuase they were just modifying the cars so much along with pushing them hard without upkeep. Link to comment Share on other sites More sharing options...
Jake Posted August 31, 2007 Share Posted August 31, 2007 We modify out cars a bit here too, but we don't have crankwalk problems (touch wood). Has ANYONE over here had crankwalk? I've not heard of it. As I understand it, they (the merkins) consider it almost a common problem. So what's the difference? I mean, it's not solely a problem on the quad digit dyno queens and the 3sec drag cars, they get it with their average daily driver 900hp commuting Supras too. Sorry, I was lapsing into sarcasm there... but what could the difference be? Could it be as simple as the fact that in the US they have to declutch when stating the car, or something like that? Link to comment Share on other sites More sharing options...
steb9780 Posted August 31, 2007 Share Posted August 31, 2007 I am sure Evo's (earlier ones upto an Evo IV IIRC) are succeptible to this, some sort of bad manufacturing on some of them. I'd never heard of it in the Supra so much. Link to comment Share on other sites More sharing options...
Guest verbal Posted August 31, 2007 Share Posted August 31, 2007 wow Im really kinda thrown back haha. two different extremes. One full of Americans complaining of this 'fault' in the Supras design and another who says they haven't even heard of the term before. I like others here tend to blame this 'fault' the Americans are seeing as just poor workmanship when it comes to doing all their own work, either cutting corners or just not spending the time to do things right along. so your bewildered reactions are kinda promising in a weird kind of way ha Link to comment Share on other sites More sharing options...
Alex Posted August 31, 2007 Share Posted August 31, 2007 Cool - we tend to say it as we see it here...no BS. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now