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  1. #151
    jkyle's Avatar
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    If you would listen to what is being said you might catch on. The place that you are talking of oil being optimum is the sump temp after the oil cooler has done it's job. no argument on that .
    What i am saying is that in normal operation oil raised in most engines 50 degrees above sump temp in the process of lubing and cooling engine parts.How hot is the bottom of a piston that you just blew up stuffed full of fuel at 8k? The oil spray nozzles keep those pistons cool enough to keep them from melting.
    Oil will capture moisture from the combustion process...that leads to acidic oil...ever seen the inside of an engine that only runs a few min and never reaches operating temp? Its full of sludge.
    Head temps not at 300? Really that is a flame running across the exhaust valve. Besides that i talked of aircooled head.
    You are right oil heats up faster than oil...water is used because of this as coolant and why we add the green stuff to it to raise its boiling point.
    If you used Stan's waterless coolant you would lose hotspots and cavitation from boiling .
    I was quoting Lake Speed jr. the man behind Joe Gibbs oil company.

    I'm not an oil expert nor am i the best mechanic i know but I have been in business 30 years working on engines and take to heart all failures that are brought in and try to figure out why.
    I do that by keeping an open mind and listening to factory experts whose job is to do failure analysis.
    Oh, you might do some reading on fuel additives that keep the alcohol bonded to gasoline so it doesn't grab moisture and begine to phase seperate then send water and alcohol down that fuel line.

    Just saying.......

  2. #152
    DR2006RXP's Avatar
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    A bad day...ARP Rod Bolt Measure Stretch not Torque

    Yes I am aware this is from 2013 just wanted to post some info , as per the Cp rod kit I purchased from Riva for my 300 and as per the specs from CP bucklet they spesify 0.0055 - 0.0070 and no more than 79nm (58.26 ft-lb). At those specs I could not get past 0.0050 - 0.0053 on any of the 6 bolts, I called CP and they said I could pass the 79nm torque limit as long as I did not pass 0.0070 but that I should aim for 0.0060 , I did this in increments of 5nm . At 85nm I was at 0.0054 - 0.0057 and my final number to get to 0.0061 - 0.0063 was at 92nm (67.86 ft-lb) almost a full 10 ft-lb over the recommender specs , I looses them all up and it was back to almost 0.0001-0.0002 at most , food for thought .
    Click image for larger version. 

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    Last edited by DR2006RXP; 01-08-2019 at 11:11 AM.

  3. #153
    ptscon's Avatar
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    Hmm ARP site says 0.007 - 0.0075 for the SeaDoo rod bolt kit. I did mine to 0.007 with actual ft-lb all over the place 56-65 between the bolts.

  4. #154
    DR2006RXP's Avatar
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    Quote Originally Posted by ptscon View Post
    Hmm ARP site says 0.007 - 0.0075 for the SeaDoo rod bolt kit. I did mine to 0.007 with actual ft-lb all over the place 56-65 between the bolts.
    My rods came with cp screws and that what I came up with .


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