e500slr

OK so I'm selling a motor and a guy came to look at it with his "mechanic". I went into my garage and from a distance I see him put on a socket on the harmonic balancer to turn the engine. He turns it clockwise, but then for like 45 degrees he turns it back anti-clockwise. I told him "what the hell are you doing, you shouldn't turn it counter-clockwise".

Anyways do you guys think that could have damaged the motor by loosening the harmonic balancer or something or am I just being paranoid?

I really don't wanna end up selling it to someone else who blows it and ends up shafted.

rapidoxidation

Gonna take a lot more than hand tools to loosen the balancer nut. I wouldn't worry about it.

fastlife23

no it does not do any harm

Rocman8

The reason for not turning counteclockwise has nothing to do with loosening the bolt because that takes extreme force. It's to ensure you don't skip a tooth and mess up timing.

rapidoxidation

Has that ever happened from someone manually turning a motor without something else already being wrong with the timing linkage (a bad tensioner, perhaps)?

FunkTron

what he said.

certain motors don't have this issue, some do.

If you skip a tooth or two on an interference motor rest assured your valves will be in a boxing match with your pistons. Either way, it's a no win.....and expensive.

e500slr

So what's the likeliness this happened in this case?

It's an M157 by the way.

hayseed

iTrader: (2)

zero unless the motor was f'd up to begin with