wow I am getting hit at $320 per valve ouch

I had mine "ghettoed-up" last year...ran the dumps off the thermostat housing and zip-tied a piece of heater hose so it hung out the side air-vents! Then I routed it more permanently thru a pair of dumps that had been installed for the previous owner's superchargers thru the transom.

I ran across a few here last spring when I posted a 'wanted'.
Ratman had 1 then. I bought 2 of 3 that T/Motorsports had. Way less than that price.

$320? must have been another big price jump. And to think, just a couple yrs ago they were $100 new from Merc. Guess Merc realized they created a problem wtht high pressures( but won't admit it) and now they convienently have the fix at a nice price.

even at $640, you'll be glad you finally got the presure under control. Trust me. Just watch your water pump hose swell when running.
BTW, I have a pt# for springs that will lower the pressure to an even more desirable number that are an exact replacement.

I paid over $600 for mine last year. Dump through the transom. They do work.

Me too....I love them.
I "re-sprung" them (if thats a word) with the lighter springs and get about 18-20psi @ WOT.

that's crazy, my whole system with install was only $450.00 or $500.00??? and it had an adjustment valve....gods bless merc.......BZ

US1 Fountain i installed the merc valves looks like they are set @ 30lbs . im looking for the replacement spring to lower psi to 20 . do you still have the part # and were to get them. thanks Brian

Your lucky day Brian, I'm almost never on here anymore. Read this thread. Bought my springs in stainless from mcmastercarr. Page 5

http://www.offshoreonly.com/forums/g...-valves-5.html

thanks for the info battled hi psi all summer cant wait to get passed it . Brian