<human>: Back in May of 2013 I had an engine builder rebuild the motor in my 2004 Subaru Impreza WRX. He came highly recommended and I talked to him several times on the phone before towing the car up there to have the work done. He claimed that his shop had done several of the same motors previously, and that a stock rebuild should be easy. Well come the end of May when I picked the car up, it didn't seem to have a lot of power, and it smelled awful (burning oil). Over the next couple months I was back and forth to his shop that was 55 miles from my house. Paying something almost every time, he had me chasing all these symptomatic problems around, digging me into a deeper hole. Eventually after taking it to a Subaru dealership more than once, it was found that the engine had bad compression. Also found were some pretty damning sign of negligence such as engine mount bolts missing (only 5 of them hold the motor into the car). Turns out the he used a stock piston ring size on a motor that needed a bigger ring due to the pre-existing 100k+ miles of wear on the block. As a result I have something called "piston blow-by", and resulting excessive base pressure. In the end, the pressure pushes oil through my front crank shaft seal, and then it leaks the oil all over the motor and onto the exhaust cross pipe. This is wear the burning oil smell comes from.

The builder refuses to make things right, and won't pay me for what it will cost to repair this engine, which is basically another rebuild (~$4k).

So my questions are now: is it a good move to try and sue this guy in small claims court? Do I need to sue the business? Can I represent myself in small claims court? How do I go about filing a claim?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Hired an engine builder to rebuild my car engine, he botched the job. Can I go after him in small claims court representing myself? How?