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| Volvo MD6A oil pressure drop |
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Message |
    
William B. Finch
New member
Username: fr44
Post Number: 3
Registered: 08-2009
| | Posted on Friday, September 25, 2009 - 04:05 pm: | 
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When started the oil pressure is fine, but as soon as the engine reaches temperature the oil pressure drops rapidly and severely. This problem was preceded by a rise in the oil level due to fuel leaking thru a cracked lift pump diaphram and possibly coolant thru the seal rings of the water pump, both of which we fixed immediately and then changed the oil (SAE 30 weight per spec) & filter. The oil level has remained constant since then. We have verified the pressure issue with two different mechanical gauges as well as the warning light from the Volvo sender. Any thoughts on what the cause & fix may be would be appreciated. |
Richard Vosbury
Member
Username: vosman
Post Number: 60
Registered: 01-2009
| | Posted on Saturday, September 26, 2009 - 01:31 pm: |
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Check that washer that seals bolt for idler gear between crank and cam gears has not failed. If it does, oil pressure will drop. |
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