06 with 56K on the odometer dies on the road last week. ACT HD street clutch has crapped out. Inspection shows trashed thrust bearings leading to crank walk. Crank walk leads to rod/pistons under stress and cylinders that may be out of round. The sad fix: new short block or new engine?

 

sorry for the bad news. I would normally say in a scenario like this rebuild the block. sleeve it and do some nice pistons and rods, but that's overkill for the Greddy kit but would keep your options open for the future. If you do end up wanting to buy a new motor I have a friend selling an 04 if you are interested. Good luck!

 

Been down that road. Building a block is spendy.... But so Is a new engine. what do you want to do with the car in the long run?

 

John,

Have you had the pistons checked yet to see if they are out of spec?

 

^this

 

This is no beast. I have the GReddy on it so it has a quick spool and gives it the lower end twist without having to hit 6000 rpms. I am happy running it at 290whp and 200 ft/lbs torque. I want to drive this 9000 miles a year for the next 10. The Honda dealer wants to drop the short block in it with a new OEM clutch. PSI wants to drop a short block in there while upgrading a few things, like pistons, etc. for the same cost. The other question is whether I close my eyes, replace the clutch, and hope the thing doesn't seize up on me later, or do I spend the cash and assume the block is wack. I suppose I could spend the money to have the thing torn apart and verify the block is toast... I dunno...

 

No, I haven't. Being told that will involve a bunch of time just to do that. The other indicator they don't like is that the engine practically seizes at idle when you push the clutch down because of the amount of crank play. The thinking is it would be hard to imagine the pistons aren't worn if they've been subjected to that amount of stress, but I suppose I could consider springing for that before I take the plunge on a new short block.

 

If you don't end up rebuilding your shortblock let me know if you want to sell it John.

 

I'm sorry John, I feel bad that you're in the situation you're in. I'm going to leave the opinions up to the members who are more qualified than I am. Good Luck!

 

Sorry to hear about the crankwalk John.

As this is an opinion thread, if I was in your shoes, and plan on keeping the car for another 10 years, I would take this chance to do a build motor without question.

Is there anything you can share in terms of what type of noise/symptoms you may have noticed leading up to this failure? I know I've seen these type of threads on S2ki before relating to ACT HD's and crank walk, but I've always taken it with a grain of salt because the ACT HD clutch was so popular, so lots of people have them, therefore it just felt like they were the cause.