RAC68
Darth Vader
Offline
Hi All,
A friend has just learned that the knocking within his '67 BJ8 P2 engine could be caused by a warn connecting rod bearing. This is an area I have little experience and would like suggestions on how to identify the faulty connecting rod bearing (if that is what it turns out to be) and how to correct the issue without removing the engine and/or entering into a full engine rebuilding.
To locate the knocking/ticking noise, a stethoscope was placed along the valve cover showing no good indication that the noise was emanating from the Valve Train. However, a stronger indication seem to indicate that the sound was emanating from the lower end of the engine block in the area of the cam or crank shaft. So, what could create a knocking noise in a regular rhythm within that space?
Locally, the consensus of a few Healey-owner friends suggests that since the engine pulls strongly with good oil pressure increasing with RPMs, the knock is not emanating from a main bearing but could be coming from a single cylinder. Although it was hoped that the knock would disappear when the problem cylinder spark plug was disconnected, this did not happen and the knock continued through the deactivation of all cylinders, one-by-one.
So, what could cause this knocking noise and how should it be addressed for identification and resolution? Your suggestions would be appreciated.
Ray(64BJ8P1)
A friend has just learned that the knocking within his '67 BJ8 P2 engine could be caused by a warn connecting rod bearing. This is an area I have little experience and would like suggestions on how to identify the faulty connecting rod bearing (if that is what it turns out to be) and how to correct the issue without removing the engine and/or entering into a full engine rebuilding.
To locate the knocking/ticking noise, a stethoscope was placed along the valve cover showing no good indication that the noise was emanating from the Valve Train. However, a stronger indication seem to indicate that the sound was emanating from the lower end of the engine block in the area of the cam or crank shaft. So, what could create a knocking noise in a regular rhythm within that space?
Locally, the consensus of a few Healey-owner friends suggests that since the engine pulls strongly with good oil pressure increasing with RPMs, the knock is not emanating from a main bearing but could be coming from a single cylinder. Although it was hoped that the knock would disappear when the problem cylinder spark plug was disconnected, this did not happen and the knock continued through the deactivation of all cylinders, one-by-one.
So, what could cause this knocking noise and how should it be addressed for identification and resolution? Your suggestions would be appreciated.
Ray(64BJ8P1)
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