AerosGS
Junior Member
- Messages
- 119
The scavengers run off the same spline as the oil pump. The complete oil pump setup then runs on a common 'jointed' spline with the water pump, which is all part of the same unit. The failure occurs at the joint between the oil and water pump spline due to water ingress through a small inspection hole. The water festers and rust runs rampant eventually weakening the spline to the point of failure.
Symptoms are erratic oil pressure, or more seriously regularly low oil pressure. If your oil pressure goes altogether, don't drive any further otherwise a £1500 pump replacement could turn into an engine replacement.
It affects QP's also.
Wouldn't a regular blast of WD40 through the inspection hole do wonders if that's the problem?
Cheers