My power steering pump leaks oil out of the cap during a hard run. I have replaced the pump, the cap even installed a larger pulley. Is there a difference between a automotive and a marine pump? Or any way to add a remote reservoir?
yES TO THE REMOTE... YES TO THERE IS A DIFFERENCE.... AND YES, YOU HAVE A PROBLEM.
Sorry about the CAPS :confused1
You can buy a top cap for your reservoir from some of the advertisers on this site...IMCO...CP Performance what ever you want. The extended reservoir will be a good isea IF you have full hydraulic steering,,, but is masking the problem if you only have the stock "cable n Merc" steering.
Is the fluid getting hot? Is it foamy or have a lot of bubbles?
If it does you could have air in the system and you need to bleed it. If it is getting hot, you have some blockage in a line or filter.
If it is only AIR then it still will get too warm since the pump uses the fluid to cool itself.
The difference is in the pressure relief valve. They are different but I'm not sure HOW much difference will cause you problems. I do not think you would have any problems like you are having just because the relief valve is set difference.
Now if you were having "slow operating or jerky" operation then Maybe
Thanks for the tip on the pressure relief valve. I found one at Summit that may work or at least get me close. It is normally used on street rods. If it does not then I will start drilling on the one I have. I kind of thought that was the problem. My last WOT run was at 5900 rpm. Of course some prop testing is in order.