I cant believe it! Fully built, $7500, 700 miles, and CRANKWALK!!

[EvolvingGST]

not all 7 bolt motors walk, the reason is due to weaker stock internals of the 7 bolt eclipse engines, i have not heard that the Evo Engines walk... they are 7 bolt

 

[GSX4LIFE]

Weak internals? I have some some of the strongest internals you can get. Eagle rods and Venolia pistons. And everything else. And it walked in 700 miles.

 

[nothing stock]

Well that's exactly the amount of time I got on my 7-bolt rebuild. I did it myself, so it's nice to know that the pros #@%#@%#@%#@% up too.

I'm going 6-bolt now. I feel your pain. My car hasn't been to the strip since Febuary, and my car hasn't been running since then.

Best luck getting them to warrantee it and get it completed quickly.

 

[nvmygsx]

There is NO CURE FOR CRANKWALK. Many shops have tried to cure it, and so far no one has done it successfully. they all argue about oil squirters, and some even say misadjusted clutches.

Obviously we have learned this in this current thread... Buschurs walked, extremes, walked. 4g63 builders dont get any better than those 2 guys.

7500 is not bad to spend on a built motor, especially since it was done by extreme.

Good luck on your car, i am sure that they are going to take care of you. it is not going to be a total loss, everything is not destroyed when crankwalk happens...

 

[StockSpyder]

Originally posted by EvolvingGST
not all 7 bolt motors walk, the reason is due to weaker stock internals of the 7 bolt eclipse engines, i have not heard that the Evo Engines walk... they are 7 bolt

weaker internals? funny.. I have perfect compression still and dynoed 421 and run 28 lbs on the street quite often.. and yes.. older evo motors walked just as much as ours do. 7 bolt eclipse motor vs an evo motor? whats the difference? the 7bolt eclipse motor comes with a t25 instead?

 

[nothing stock]

Don't stress John, he obviously doesn't understand crankwalk.

 

[BatmanGSX]

*sigh*

 

[Tevenor]

Ooooowwwwwwwww. This post makes my head hurt.

1) I would sooner #@%#@%#@%#@% a quadrapalegic midget with syphillis than pay ANYONE $7500 to build my engine.

2) Almost everyone in this thread needs to do more research on what crankwalk is before offering their opinions.

3) I am sorry to see your engine walk. I would offer that the cause was a misaligned thrust bearing from the rebuild.

 

[GSX4LIFE]

Well I spoke to Sean today, at Extreme. He will not eat the total loss of the repairs. His offering is that the ACT2600 was the cause. And because he offered to put the CM2500 in instead, Extreme is not responsible. He is, however, offering some help. All labor for repair and the $400 for the CM2500 will be around $2000. Thats not bad, I guess. Afterall, he could have told me to stick it where the sun dont shine! But he is willing to work with me. So I will have about $9500 total invested into this engine. I then promptly asked him" I will be in business aftre this right? This WILL be it, right?) To which he replied, "You'll Deffinately be in business. You wont have any more problems after this, Im sure of it" So Im gonna trust his word on this. What else can I do? Im really stuck. BTW. I measured the play today. The crank has about .065-.75" of travel! No thats not a typo. There is so much play, I could visually see it move. And used a Machinest Rule to measure it. I could see about 2/32" play with my eye. Thats .065". So its probly a bit more than that.

 

[StockSpyder]

Originally posted by GSX4LIFE
Well I spoke to Sean today, at Extreme. He will not eat the total loss of the repairs. His offering is that the ACT2600 was the cause. And because he offered to put the CM2500 in instead, Extreme is not responsible. He is, however, offering some help. All labor for repair and the $400 for the CM2500 will be around $2000. Thats not bad, I guess. Afterall, he could have told me to stick it where the sun dont shine! But he is willing to work with me. So I will have about $9500 total invested into this engine. I then promptly asked him" I will be in business aftre this right? This WILL be it, right?) To which he replied, "You'll Deffinately be in business. You wont have any more problems after this, Im sure of it" So Im gonna trust his word on this. What else can I do? Im really stuck. BTW. I measured the play today. The crank has about .065-.75" of travel! No thats not a typo. There is so much play, I could visually see it move. And used a Machinest Rule to measure it. I could see about 2/32" play with my eye. Thats .065". So its probly a bit more than that.

Well at least he offered to help.. Thats good.. I hope it works out for you!

 

[badgsx]

The clutch killed it in 700 miles? Man I would be so pissed. What makes Sean so sure that after a new clutch is put in there will be no problems? Did you get any kind of warranty with the engine work?

 

[HighPsi91]

I was told the same BS by likely the same people. The CM2500 clutch is a POS. If the cranks thrust bearing surface was prepared right and the bearing was aligned properly it should not have walked. The clutch was installed by extreme so if walk was due to improperly adjusted cluth then thats on them. The 95 style thrust bearing should have no problem handling an ACT 2600. the late 2G's are a different story. I think you should think about taking it somewhere else. I can suggest where but I dont think I can do that here. Ask LarryD.

 

[GSX4LIFE]

I cant take it somewhere else now. If I do, that person will say, "well someone else worked on it first, so its not my fault" And I dont think anyone will touch that job for under $2000. And hes doing it for $2000 and the new clutch. I dont know. I kinda want to try the CM anyway.

 

[StockSpyder]

Id ask to put the 2600 back in.. Ive had a few CM clutches and every one of them the spring in the disk either cracked or broke in half.. inconsistent pedal feel is #@%#@%#@% FYI

 

[HighPsi91]

Its up to you. I just thinks its crazy to spend another 2K+ on the same people who botched it up in the first place. And like you said in a previous post... you didnt have a crankwalked motor when you went there. I have been around this stuff long enough. As soon as you posted this thread I knew EXACTLY what they were going to tell you. "Its the clutches fault".

 

[95talontsi]

didn't nos laser say something about the iron content in the blocks being less and less and when torqing down the head bolts it would warp the mains or bearing slightly, I know a bit about engines, and have helped build chevy's and this sounds like a very good explanation, busaur new 7 bolt short blocks probably have the least iron content and walk, act clutchs make it worse by "pulling" on the crank, but I am no way close to an expert on this subject just my .02 $

 

[Blue97GST]

Can you take Extreme to small claims court or take any other type of legal action against them? They charged you $7500 to ruin your engine. I think any judge in the land would agree that your entitled to have this botched job fixed for free.

 

[RamenPride]

of course he was going to say it was the clutch. aren't they sponsored by Clutch Masters? what if it walked and you had a CM in there, what would he say then?

$2000 for labor and repair!? you could basically buy a new/rebuilt engine for that much. before you dumped $7500 into the build up, you should have tried to get some kind of guarantee or warranty.

 

[MustGoFaster020]

Well, I notice a lot of people are saying $7500 . If you break it down it's actually not that bad. If it were 7500 and he had to install, then, that would be something. But, if there was no warranty expressed then it would be bought as is.
Also, just to be superstitious, go under the dash and cut one wire that goes to the clutch sensor. (There are two just pick one) It doesn't matter; all the dam thing does is the starter kill, and nothing else. (On GRV4’s at least) Then you can start your engine without the clutch in and *maybe* prevent some damage to the thrust bearing on startup when there is essentially no oil pressure for a small period of time. I heard somewhere that one or two 2JZGTE’s have fallen victim to crankwalk from cranking it over for extended periods. (Stand-alone install anyone?)

 

[NDgsx]

If the thrust surface of the crank and main bearing were properly aligned there is no way that a clutch would cause that type of thrust play. 2600 does have the highest release pressure of any dsm clutch though. That's why I run centerforce pressure plates with an ACT disc.

 

[Blue97GST]

has anybody installed a 92.5-94 7 bolt motor (the kind without the CAS) in a 2g? I would think it's a direct bolt-in swap and less prone to walk. Can anyone confirm this?

 

[NDgsx]

All 1G engines have a CAS.

 

[Blue97GST]

Originally posted by NDgsx
All 1G engines have a CAS.

No dude I think you're wrong--- I'm no expert or anything but I heard that 1g's don't have the CAS! Am I nuts? Misinformed? Did I get some false info?

 

[NDgsx]

Title says "dsmtuners wiseman", I've owned 3 1Gs. I've worked on every single year of 1Gs, every single one of them has a cam angle sensor.

 

[BatmanGSX]

Originally posted by Blue97GST
Am I nuts? Misinformed? Did I get some false info?

"D", all of the above.