Went out for a run last weekend; warm weather and engine working fairly hard. Water temp steady between 160-180F, oil temp much the same. When properly hot, oil pressure at idle was only showing 5psi, increasing to 15 at fast idle and 30-40 when driving.
Is this normal, or should we be investigating the condition of the oil pump and bearings?
My other query concerns the starter motor (Simms, 12 Volt). It works fine time after time when cold but once the engine is hot, nothing happens when pressing the starter button except that the ammeter shows a discharge of 10 Amps.
I have taken the starter off, inspected it and bench tested it successfully through 100 cycles but when re-installed, the same issue arises. I initially thought that the pinion might be jamming on the ring gear but there is not even any clicking from the solenoid; furthermore, turning the engine manually doesn't help (although it will start on the hand crank). I suspect that the solenoid has developed a fault that only manifests itself when hot. Has anybody else experienced this?
We have a spare starter but it is military spec. and is marked 24 Volt. Can anybody tell me if there are any fundamental differences, or is the only implication of using this on a 12 Volt system the fact that it would draw twice the current?
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mtskull
A couple more B80 queries:
Went out for a run last weekend; warm weather and engine working fairly hard. Water temp steady between 160-180F, oil temp much the same. When properly hot, oil pressure at idle was only showing 5psi, increasing to 15 at fast idle and 30-40 when driving.
Is this normal, or should we be investigating the condition of the oil pump and bearings?
My other query concerns the starter motor (Simms, 12 Volt). It works fine time after time when cold but once the engine is hot, nothing happens when pressing the starter button except that the ammeter shows a discharge of 10 Amps.
I have taken the starter off, inspected it and bench tested it successfully through 100 cycles but when re-installed, the same issue arises. I initially thought that the pinion might be jamming on the ring gear but there is not even any clicking from the solenoid; furthermore, turning the engine manually doesn't help (although it will start on the hand crank). I suspect that the solenoid has developed a fault that only manifests itself when hot. Has anybody else experienced this?
We have a spare starter but it is military spec. and is marked 24 Volt. Can anybody tell me if there are any fundamental differences, or is the only implication of using this on a 12 Volt system the fact that it would draw twice the current?
Any thoughts/suggestions welcome.
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