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  1. #21
    ph2ocraft's Avatar
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    Quote Originally Posted by nicjak View Post
    you do realize water only flows the one direction under pressure? that hose then from the block then becomes a cylinder drain hose when you turn the ski off evacuating the water from the engine. the 260s had it then it was deleted on the 300 because the jacket wasnt as deep. the 310 went back to a deeper cooling jacket thus requiring it to be drained. just my observation and cant really see any benefit at all.
    I'll pass on your comment.

  2. #22
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    Quote Originally Posted by Mike H View Post
    Hahaha thats funny i was just telling another member I've been running this same setup for a long time on my 300. Can confirm will drop engine temps considerable amount.

    If i may offer some suggestions.... put that pisser somewhere it wont fill your footwells, if you have a long idle out to fast water it gets annoying having warm water in the footwell. I recommend a hole opposite of the exhaust pisser you already have up front. You can monitor flow that way too.

    Also on mine, at idle speed, so much water flow is going out the 1/2" line added that you will get little to no water out the original exhaust pisser. Soon as you come up on the throttle just a bit it will begin to flow again
    I can't remember the amount it brought temps down but it works like a champ.
    My pisser is also at the front.
    The photo's show where my last freind put his.

  3. #23
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    Do you monitor engine temps regularly?

  4. #24
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    water temps in my understanding have never been an issue, of course its going to flow water when it is rerouted in that way, on the 260 it was controlled by a ball valve. you would want to make sure wherever you discharge it that its lower than the fitting height otherwise your block wont drain.

  5. #25
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    Block will have water sitting it regardless on the 300/310's right? Before this the only way for water out was the exhaust pipe. It could possibly backflow a bit out of the head but i cant see how the cylinder would completely drain

  6. #26
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    the fitting sits in the bottom of the jacket same as a 260 300 is very shallow and drains from the rail

  7. #27
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    The OEM fitting has a 1 way check ball in it though so prior to the new regular flow fitting it wouldnt drain the cases on the 310's anyway

    I know what you're saying about the rail on the 260s for draining and the 300 cylinder is pathetic as far as water for cooling, theres little in there to start with

  8. #28
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    So it obviously has the same valve setup as the 260 then allowing it to drain

  9. #29
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    2014 310 lx 32 hours.....15 ecu

  10. #30
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    Quote Originally Posted by nicjak View Post
    So it obviously has the same valve setup as the 260 then allowing it to drain
    Click image for larger version. 

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    This is the "valve" setup on a 250/60. Its not really a valve so much as an open fitting that, yes, did allow for water to drain. The 310 version of this is a 90* one way check valve fitting only allowing water in and no drain back when the ski is off or flushed. So no, it did/does not allow for water to drain from the cylinder as this would be the lowest point for any water flow in any direction on a "normal" routed 310. Am i missing something?

    The new setup that Al posted installs a 90* fitting with no check ball in it so yes, once you do the update, if your ski requires it, you will have a spot that drains water completely from the cylinder


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