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Re: Curiosity killed the oil pressure?

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Mr. T. Minnesota

11-08-2012 17:40:32

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SG, As to the spring length, it is the same. The tension seemed close to the same also. The spring said it was made in the USA too. The previous pressure was about 25 psi at a cold start and tapered off to about 10 psi. Now it does not get above 20 psi at a cold start and have not run it long enough to determine the hot reading. I do not plan to put in the old spring because the spring was worn where it contacted the plunger as it did on my 2N. A broken spring is not good news.
Thanks for the replies!
Mr. T. Minnesota

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11-08-2012 17:59:24

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 Re: Curiosity killed the oil pressure? in reply to Mr. T. Minnesota, 11-08-2012 17:40:32  
The relief valve will set the high pressure at start up but has very little to do with amount the pressure drops when warmed up. That is more to do with bearing clearance and condition of the oil pump itself. If changing the spring lowered your cold start oil pressure the new spring doesn't have as much tension as the old one. I would expect your hot oil pressure to be about the same as it was with the old spring.


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11-08-2012 17:53:12

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 Re: Curiosity killed the oil pressure? in reply to Mr. T. Minnesota, 11-08-2012 17:40:32  
as a test.. stretch the new one a tad and see what happens...

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