Triple oil pressure at cranking speed

andre g said:
pressire might be higher,when the free flow is blocked. When I had a closed/ blocked oil cooler of some reasons..  the rubber tubes to the cooler burst! 50 psi are 3+ bar and 100 twice as much-7?
At 5-6 th rpm maybe more than ?10-20? if the oil flow is blocked.
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I don't think there's a pressure relief valve in the Laverda oil delivery system. I've not seen one anyway.  It's a positive displacement pump so the pressure could go sky high if there's a blockage. Something has to give eventually. If it wasn't the oil cooler hose then it could have been the cooler itself or the drive pin on the oil pump gear.
 
Vince said:
Thats suprisingly high
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I agree, for some reason I seem to recall values of 5-10psi sprouted as normal.

As Cam pointed out, a positive displacement pump is going to increase pressure if there is a blockage. But, 100psi, I doubt the shitty little pump could achieve that figure.

Red would know, but he doesn?t play here anymore...  :(
 
No actual relief valve in the system, reckon a bursting oil cooler is relief valve enough...  :D  10psi when hot tallies with my experience.

piet
 
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