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2G Crankwalk research needed.

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spyderdrifter

10+ Year Contributor
5,267
711
Jul 11, 2009
Somewhere in, Colorado
After my recent awd swap being completed, I have learned that the 7 bolt I put in with the swap, is suffering early symptoms of crankwalk, being that the crank trigger plate is hitting my cps while disengaging the clutch. It is an oem spec clutch disc, pressure plate, and tob, with the only aftermarket part being a Fidanza flywheel. But, this post is not about this engine as I already have a plan to take care if the issue.

This post is about this.... eventually, I want to build a 4g64 stroker engine. I know all engines are capable of crankwalk, but has the been as much of an issue with 4g64 engines like 4g63's. Do they have the same premature bearing failure or crank failure?
 
Crankwalk is rare, most 63 crankwalk was never actually crankwalk. People's incompetence lead to engine failure, in which they falsely blamed on CW. Just build a 4G64, don't put a 2900# clutch on it, and don't worry about it.
 
@yukiz has done this exact swap. He mentioned something about his shortblock having a split thrust bearing. Maybe he will chime in
 
Don't listen to the guy above. Take it from someone who has been around and seen no less than 10 engines crankwalk. Both auto cars and manual cars. We just replaced another engine with crankwalk. Granted the car's rev limit is 10,500rpm, it uses an 83mm turbo and has been as high as a 300hp shot. So that car gets an asswhipping .

All you can do is cover your bases and hope for the best. We even had one walk before we pulled it out of the garage. It walked while I was adjusting the clutch. After 18 years I have seen everything there is to see with the 4g63.
 
T is for Turbo, I totally agree with you about crankwalk being falsely accused due to lack of proper maintenance, especially after reading all the stories on this forum. This is why I was hesitant to even consider CW. Sadly, since I haven't had much time to inspect everything, CW makes sense based on what the car does. I'm not yet ruling it as what's going on, but it is a real possibility on this engine.


Yesterday I read through a long list of CW stories on Road Race Engineering's site and so many of their symptoms match mine exactly. I'm still not reary to call it confirmed until I do have the opportunity to inspect it this weekend though. I've had 5 of these cars, 4 turbo, and have never run into the problem, until now as it seems. Biglady, I guess it just depends on how many of these cars we each deal with, and even though I haven't personally dealt with it, I know it's a very real problem. Shame on Mitsubishi and Chrysler for taking the cowardly way out of their manufacturing problem. I'll probably also do the clutch safety switch mod as well for added assurance.

But back to my main question. I know all engines have about the same risk, but for a 4g64, has there been and confirmed cases that they have been found to have the issue occur?
 
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