This can be over come
I packed the area around the rear seal with grease by removing the rear knock sensor and squirting grease through the hole. As the motor warms, the grease melts and lubs the bearing. Pump in about 150 ml grease. To save the bearing this must be done at first sign of noise.

I have a used, but very serviceable counterbalance shaft. This one is slightly scuffed.

Bob Sepe
919-417-5019
[email protected]
Dec 2, 2023

Hope you got this fixed.. I've a spare, slightly used, counterbalance shaft plus a bearing. I was able to accomplish the job without special tools.
Bob
[email protected]

I spent considerable effort to made special tools to remove the counterbalance bearing shaft cover so I could replace the end bearing without removing bank 1 (1-3-5-7) cylinder head. It is not possible because the factory security fasteners are highly torqued. The CBS was installed prior to the inst...

Oh yeah, if you think you can drop a junkyard V8 engine into your car without first replacing the countershaft bearings, you are fooling yourself.

Filling the cavity with grease... remove knock sensor on right whilst standing in front of the vehicle looking inward, works when the bearing has not failed... when the bearing cover fails, the grease in the cavity will provide some lubrication. If the bearing has failed, knocking noise, the grease ...

Good idea.... if it is unable to grab the head.. because these things usually grab the entire shft.. I'd cut/drill off the tamper proof head, pull the bearing retainer up for removal, then use the stud extractor to remove the fastener shaft. Either way, it is necessary to remove both heads..

The problem is not that the water collects above the CBS cover plate, but within the cavity. The weep hole has to be inside the cavity.. water intrusion can be eliminated by sealing the plate to the cavity with form-a-gasket. The local Volvo dealer tried drilling a hole in a casting and managed to p...

All Volvo V8s have a problem. It seems Yamaha built the engine and noticed it did run smoothly due to the 30° cylinder bank separation. The vibration problem was solved by fitting a counterbalance [CB] shaft in the valley between the cylinder banks. A sprocket and bearing were added on one end to en...

When counterbalance shaft bearings have NOT been destroyed...