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Old 08-09-2004 | 12:05 PM
  #21  
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Default Re: Merc water pressure relief valve

My pressure was pinned at 35, after installed not over 25 and after removing the thermostat no water pressure.Waters 120 and oil temp takes awhile to come up to operating temp.Looking to install oil thermostats now.
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Old 08-09-2004 | 01:50 PM
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Default Re: Merc water pressure relief valve

Direction is "either"
Make sure you put it just before the crossover so that you don't loose good water flow to your oil and PS coolers. If you put it before the coolers the cooling capacity of the coolers will diminish greatly.
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Old 08-09-2004 | 11:16 PM
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Default Re: Merc water pressure relief valve

Originally Posted by Faster!
I put mine between the sea water pump and crossover.
Where did you dump the water?
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Old 08-10-2004 | 06:04 AM
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Default Re: Merc water pressure relief valve

Originally Posted by NordicHeat
Direction is "either"
Make sure you put it just before the crossover so that you don't loose good water flow to your oil and PS coolers. If you put it before the coolers the cooling capacity of the coolers will diminish greatly.
This is what I'm afriad of! so after the coolers, before engine block sounds about right.
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Old 08-10-2004 | 06:18 AM
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Default Re: Merc water pressure relief valve

Originally Posted by US1 Fountain
Where did you dump the water?
I am dumping to an existing thru hull that I had for a manual bilge pump. Will be cutting in a new thru hull this week.

Yes put it in after the coolers. Merc sends a little instruction sheet along with the part and they recommend after the cooler.
 
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Old 08-10-2004 | 08:30 AM
  #26  
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Default Re: Merc water pressure relief valve

Must use a full 1" dump.
I dump mine right on top of the outdrive
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Old 04-26-2008 | 07:30 PM
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TTT For Bad Medicine
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If you like it rough do it OFFSHORE!!!
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Old 04-27-2008 | 08:54 AM
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Originally Posted by klaw
I know this topic has been long and a few guys have made there own water dump systems with the one now available from merc for about $100 has any one used these looks like a nice package

Merc
Water pressure relief valve
863208a3

I am about to buy a couple
What is the current cost for the relief valve? Best place to purchase?
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Old 04-27-2008 | 09:45 AM
  #29  
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Bam has it for $275. Lot of money for plastic..

Is there decent alternative out there?
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Old 04-27-2008 | 02:05 PM
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[QUOTE=Mr Gadgets;2539601]Bam has it for $275. Lot of money for plastic..
QUOTE]

Agreed, but whats your engine worth?
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