Stethoscope sounds
Thread Starter
Instructor
Joined: Jun 2017
Posts: 101
Likes: 17
From: Bay area Ca
Stethoscope sounds
Hey. I’m posting this in this forum because im
hoping you guys will be a bit more niche towards very fine listening and tuning.
anyways. My question is, If any of you guys have used a stethoscope or like device to listen to engine internals?
im curious what a healthy engine bearing should sound like?
Is it just a smooth running metal sound? Almost like a roller skate?
or should it be literally soundless. Even with the stethoscope right there listening to it spin?
hoping you guys will be a bit more niche towards very fine listening and tuning.
anyways. My question is, If any of you guys have used a stethoscope or like device to listen to engine internals?
im curious what a healthy engine bearing should sound like?
Is it just a smooth running metal sound? Almost like a roller skate?
or should it be literally soundless. Even with the stethoscope right there listening to it spin?
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Engine bearing related to crankshaft and camshaft should be silent. The journals ride on a cushion of oil. Things like.oil and water pumps will hum. Valvetrain will have a uniform tapping or rattle.
Knocking, hammering type tap, growling, grinding.or whine fall under concerns
Listening to engines or components where there is no known concerns can give you a basis of what's normal.
Knocking, hammering type tap, growling, grinding.or whine fall under concerns
Listening to engines or components where there is no known concerns can give you a basis of what's normal.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Engine bearing related to crankshaft and camshaft should be silent. The journals ride on a cushion of oil. Things like.oil and water pumps will hum. Valvetrain will have a uniform tapping or rattle.
Knocking, hammering type tap, growling, grinding.or whine fall under concerns
Listening to engines or components where there is no known concerns can give you a basis of what's normal.
Knocking, hammering type tap, growling, grinding.or whine fall under concerns
Listening to engines or components where there is no known concerns can give you a basis of what's normal.
