1978 FJ40 metallic engine noise

[nmemtp01]

I did an engine swap and have this weird metallic noise what seems to be coming from the driver side of the engine. No blow back. No abnormal smoke. Good power out of the engine. It seems to go away at 2500 RPM. Thoughts?



Thanks in Advance,

Steven

 

[Mark Jennings]

Valves? I’d try to adjust the valves initially. Then go after more serious causes.

 

[sggoat]

If it is valve lash (don't think so) , it should change with engine temp--not rpm. This sounds like a loose something (mounting bracket outside the engine)--esp if it is rpm sensitive--if you have a stethoscope, should be able to pinpoint with it--

 

[pb4ugo]

I agree with saggoat, it sounds like somethings loose. Take the belt off so the accessories aren't spinning. It sounds tinny.

 

[franklin40]

is your starter shimmed or adjusted right. the throw out gear could be rattling on the flywheel. it does sound like an accessory/bracket though. the fan isn’t hitting the shroud?

 

[Green Bean]

I recently got one of these stethoscopes and it seems like a reasonable device to have on hand for assistance diagnosing and pinpointing the location of engine issues.

 

[PabloCruise]

I did an engine swap and have this weird metallic noise what seems to be coming from the driver side of the engine. No blow back. No abnormal smoke. Good power out of the engine. It seems to go away at 2500 RPM. Thoughts?



Thanks in Advance,

Steven

Interesting! My 2F has some noises as well, but they are different...