Re: Check out this 4g63 rebuild
 

^^^ Good tidbit to know, I've never thought about that.

Also, WTF does he spray on the waterpump and front case gaskets? It almost looks like copper spray, but I assume/hope it is just a gasket tack or something. I guess I've had good luck just using the gaskets without goop of any sort.

Re: Check out this 4g63 rebuild
 

Naw, I just follow the model of clean hands=clean motor build :).
Peoples mouths? Gross!

Re: Check out this 4g63 rebuild
 

That's the first time I've ever heard of that.

Re: Check out this 4g63 rebuild
 

I noticed alot of the same mistakes Josh mentioned, But I agree you've spent to mutch time around Raptor. I think that motor is in for a nice long walk.

Re: Check out this 4g63 rebuild
 

Well i got a stock 7bolt in my 99 GSX. Were the problems of crankwalk cleared up toward the end of the 2g years, like 1999? I mean, can you positively make ANY 7 bolt 'walk' if you want? Or is it a hit-miss thing? Example: Is there a chance that i will absolutely never get it in all the life of my car?

Sometimes it just seems like one of those scares that has everyone with a 7 bolt all worked up. I'd just like to know if there is a 100% chance that i will get it.

Re: Check out this 4g63 rebuild
 

Like mentioned before on this site, ANY MOTOR can crankwalk, it just seems to happen more often on the 7 bolt (2g) manual transmission 4g63 vehicles.
It could be a percentage thing, a sheer volume of units produced thing, etc..
Honestly, I would leave your motor stock, as the stock 7bolt can handle over 400whp w/o any internal modifications needed, if its a good tune.

Re: Check out this 4g63 rebuild
 

i walked mine (Auto 2g) But it was more likely due to the turbo going out and draining all the oil. Thank god for warrenties.

Re: Check out this 4g63 rebuild
 

who was watching to make sure the crank was not chipped when he pouned those pistons in....

Re: Check out this 4g63 rebuild
 

Josh- yeah it might be a good idea just to leave mine alone and let nature take its course and see what happens. I would still like to maybe upgrade the rods though. I hate going down the track thinking that 'this might be the last time'. However I'm probably right on the border of 400HP. Slowwhite made 456whp out of his but I can't remember what the deal was with his block that it was messed up. Was it crankwalked?

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I don't remember what happened to it. I think it spun bearings?

Re: Check out this 4g63 rebuild
 

This isn't a sign of walking is it? When i was at the track on Saturday, When i became full staged I would go 100% throttle and Antilag would kick in. Even with the clutch pedal to the wood, I could feel the car wanting to creap forward ever so slightly. -or- is that just a sign that the clutch needs a little adjustment?

Thanks Josh.

Re: Check out this 4g63 rebuild
 

clutch adjustment.

Re: Check out this 4g63 rebuild
 

That's what i was thinking and hoping. I'll have to get a buddy over and press on the clutch while he watches the throw in the slave cyl rod to see if it is maxed out or if there is room to go further. I didn't experience this a week ago when i was at the track. I just noticed it Saturday.

Thanks

Re: Check out this 4g63 rebuild
 

Just try adjusting the nut, you can do it yourself and it only takes a few seconds.

Re: Check out this 4g63 rebuild
 

I heard bartons car was walked to .030. The bearing that went was probably for the crank on the tranny side.

Re: Check out this 4g63 rebuild
 

So what's wrong with the factory installed thrust bearing on the 7-bolt motors? Is it a lack of oil to the bearing or is the surface area of the bearing too small? And why in the hell is this some huge mystery?

Re: Check out this 4g63 rebuild
 

Yeah- good question. I'd like to know too. Crankwalk has been around for how many years. With all the machining processes available you'd think somebody could come up with a fix or some sort of an aftermarket part. Is it the bearing, the crank or the block casting itself?

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It is a combination of a lot of things, hence why there is still no real fix. Also with the availability of 6 bolt blocks, most people would rather just swap them in instead of spend more time and money on fixing a 7 bolt.

Re: Check out this 4g63 rebuild
 

That was one of the mistakes I saw. He's using copper spray on regular composite gaskets without letting it dry a bit. You don't need copper spray on those gaskets anyways.

Steve

Re: Check out this 4g63 rebuild
 

That would depend mostly on setting the thrust bearing alignment, which I don't remember seeing him do. The rest looked alright enough to last for a while.

Steve