Knocking noise
TReK
Joined: Mar 2012
Posts: 3,171
Likes: 45
The rocker arm shaft is solid. For that to break-
I am thinking that the head must have been done or==
The mechanic - in trying to stop the tap or knock sound put a shim
under the rocker shaft on one and and not the other - and that snapped it.
A shim on one end and not on the other would stress the shaft.
I am thinking that the head must have been done or==
The mechanic - in trying to stop the tap or knock sound put a shim
under the rocker shaft on one and and not the other - and that snapped it.
A shim on one end and not on the other would stress the shaft.
Recovery Vehicle
Joined: Jun 2012
Posts: 1,080
Likes: 57
From: Queens, NYC
The rocker arm shaft is solid. For that to break-
I am thinking that the head must have been done or==
The mechanic - in trying to stop the tap or knock sound put a shim
under the rocker shaft on one and and not the other - and that snapped it.
A shim on one end and not on the other would stress the shaft.
I am thinking that the head must have been done or==
The mechanic - in trying to stop the tap or knock sound put a shim
under the rocker shaft on one and and not the other - and that snapped it.
A shim on one end and not on the other would stress the shaft.
TReK
Joined: Mar 2012
Posts: 3,171
Likes: 45
I assumed it was solid - except for bolt holes and for oil holes from top to bottom.
That's what I get for assuming. The first three letters of assume.
Mine felt heavy when I was replacing them on the D2. Guess those rocker arms
have some weight..
Still ---- For one to crack in half? Seems there needs to be a bending force on it.
Surprised the shaft is then that brittle.
As I understand it - adding heat to steel in the manufacturing process can make it
tempered and harder but more brittle also?
That's what I get for assuming. The first three letters of assume.
Mine felt heavy when I was replacing them on the D2. Guess those rocker arms
have some weight..
Still ---- For one to crack in half? Seems there needs to be a bending force on it.
Surprised the shaft is then that brittle.
As I understand it - adding heat to steel in the manufacturing process can make it
tempered and harder but more brittle also?
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