2010 Nismo Engine Noise.

SouthArk370Z · 05-06-2021, 10:10 PM

Quote:

Originally Posted by SouthArk370Z

A buddy of mine is not so sure it's a rod. He thinks it sounds higher up in the engine. How he can tell that from a video, I dunno. But he's a decent mechanic. YMMV

Quote:

Originally Posted by Rusty

Well, the motor has to come out anyway. Rod, wrist pin, piston slap. It's toast.

Quote:

Originally Posted by Spooler

I have heard that before. It's a rod bearing.

I agree that's it's most likely a rod but thought I would offer an alternative hypothesis. He thought it didn't have the heavy ka-thunk of a rod bearing. But he, like myself, is used to working on iron-block V-8s.

Spooler · 05-06-2021, 10:20 PM

Quote:

Originally Posted by SouthArk370Z

I agree that's it's most likely a rod but thought I would offer an alternative hypothesis. He thought it didn't have the heavy ka-thunk of a rod bearing. But he, like myself, is used to working on iron-block V-8s.

LOL, I have heard something very similar on a VG30E in a Nissan truck. Turned out to be a Vbelt lost most of the V. Everytime it went over the crank pulley it sounded just like a rod knock. I had that happen twice. The 2nd time the guy like to have hugged me to death. He though he lost his engine and turned out he just need a set of belts.

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