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    Water pump - what pressure?

    Hi all, In additional to a tell-tale for the cooling system, I'd like to fit a outboard water pressure gauge to my instruments. As there are two gauges of suitable scale to do this, 15 psi or 30 psi, I'm wondering what is the maximum pressure that the water pump can supply? Would a 15 psi...
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    Chrysler 3 cyl two piece gear cases

    Hi all, Seeking recommendations for the 'best' two piece lower unit combination. I'll explain the reason for my question. Though I've been a long-time owner of a 1973 70hp with the early short ventilation plate, I have added 3 other 3cyl motors to the 'fleet' recently; a 1970 85hp, a 1974 70hp...
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    Chrysler 3 cyl porting

    Hi all, Searching posts trying to understand where the horsepower differences are derived for the 3 cyl motors, assuming bore and stroke is the same from 70hp to 90hp. I am trying to learn if it is worthwhile porting whilst rebuilding to improve the motor(s). I will be dismantling to rebuild...
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