Corsa B
|
Subject:
Leak in Coolant Pump
Vehicles:
Corsa-B, Tigra, Astra-F, Vectra-A/Cavalier, Omega-B
Condition:
In individual cases, drops can form at the vent bore on the coolant pump, or traces of condensation may be detected under the coolant pump.
Cause:
A fine film of lubricant, which is necessarily formed by the coolant, is required between the carbon and ceramic rings in the coolant pump. Any leakage caused by this is not significant and cannot be detected in the coolant compensation tank. In addition, small dirt particles (production residue) may cause a brief leak in this area; this is likewise not significant. The dirt is flushed out or solidifies harmlessly in the "soft" carbon ring.
Remedy:
Only measurable coolant loss in the coolant compensation tank may be accepted as evidence of damage to the coolant pump. A precondition is that the entire coolant system /radiator, hoses, etc.) has been checked for leaks on a cold engine. Only when there is measurable coolant loss may the coolant pump be replaced.
Note:
In countries where return of components is mandatory, the removed coolant pump should be returned to the relevant plant for evaluation. The resulting warranty costs will only be reimbursed on conformation of leaks by the manufacturing plant.
ONLY COOLANT PUMPS WHICH ARE EXCHANGED ON THE BASIS OF MEASURABLE COOLANT LOSS
MAY BE REPLACED UNDER WARRANTY.
|
