Had a 1995 Mits. Galant 5-speed with 133K miles on it. A 2-year-old balancer belt slipped somehow, got underneath the timing belt, and the interference engine was trashed (valves bent, pistons damaged). A local garage with a good reputation found a used engine with 66K miles on it. They installed the used engine, new belts, new ignition system, rebuilt the clutch, replaced the power steering pump (had been having intermittent problems with it), "turned" the flywheel, and installed a new timing belt tensioner.
It was delayed for 24 hours coming out of the shop because it refused to start a couple of times, while still at the shop. I just got it out of the shop, and it sounds like hell when I start it. It starts, but it almost sounds like something is loose. The starter (?) makes a high whining noise that I've never heard before. Right after the engine starts, there is a momentary rattle sound, almost sounds like a loose exhaust heat shield.
I'm the original owner, the ONLY driver, it has been extremely well maintained. It always started, first try. For me, anyway. With the replacement engine, it seems to have trouble starting? The engine seems to run well enough AFTER it starts.
Any ideas on what the mechanics messed up on? Something they forgot to check?