I'm putting my old Viper 500 Quickie back in the air again, and I need an engine.

I'm looking at the TH .46 engine. I own 8 of the TH .75 engines and have had very good luck with them. Only 1 engine had to be sent back for service after 20 months of running the crap out of it. I think I just wore it out.

I've read some pretty nasty stuff on here about the TH .46--and I've read some really good stuff from people whose opinions I put a little more faith in than a lot of other guys.

Whats the word? Was it just some of the early models had a problem and now it's fixed? Or is it a QC problem and still an issue?

I'm a pretty good engine guy, and I don't mind it if I need to replace a seal right outta the box if thats what it takes--I just need to know if anyone can point to a specific problem.

Please don't take this as a trolling thread. I really want to just slap my Viper together and burn a few holes in the sky. Tower has a couple .46 engines on the S&D page for cheap right now--so I was thinking about buying one.

Thanks