Hello I'm still new to owning an S2000.

Here's the breakdown.

My 05 AP2 is in the shop for making a rattle sound at 3k+. The shop first calls and said I destroyed the bearings in the alternator and I need a new one.

I said ok and they installed a new one.
Went the following day to pick the car up after being told it's ready and it starts up just the same as it did before I towed it in and when I reved it to 3k+ the exact sound is still there.

He says that I have 0 tolerance pistons and when you have a thinner head gasket, it'll make that noise. I told him my engine never made that noise before. 3 weeks of it in the shop and I'm being told that the piston is hitting the cylinder head and also needs to find out if this is a 0 balance motor and asked me what shims was used in the block.

I get that the piston is hitting the head but I don't get the rest of it.

 

Whats the original problem?

Remove your car from that shop. Find someone experienced in S2000's.

 

I would never take it to that shop again, but that's just me, they obviously don't know a damn thing about this car.

 

Wow, sounds like you have a lot of money they are hoping to acquire for nothing. Run!!!

 

Did they also say you need to replace your muffler bearings and blinker fluid?

 

Zero tolerance pistons and shims.......

Mechanics these days.....

 

The original issue was the rattling from the engine at 3k+


The reason I felt I could trust this shop with my car was he seemed to be very knowledgeable and built a few drag race engines and came recommended as well.

 

Rattling at 3k sounds like a valve adjustment is needed, post a video of the noise if you can.

 

He sounds like a V8 drag engine mechanic. Find a shop that deals with cars built this century.

 

get your car back and take it to another shop.

harass them for misdiagnosis and costing you money plus time.