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Old 10-01-2006, 09:18 PM
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Too Much water Pressure

Strange thing happened today we were out on the 35 and the water pressure guage was pegged at 35 psi at anything over 2200 Rpms I was thinking thermostat restriction any suggestions
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Old 10-02-2006, 12:19 AM
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Default Re: Too Much water Pressure

T-stat housing design. Not big enough internal bypass circut.
I had same problem, so broke down and installed the Merc relief valve setup. Kinda pricey, but now my pressure is maxed at 19-20.
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Old 10-02-2006, 08:06 AM
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Default Re: Too Much water Pressure

Any links to who sells them
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Old 10-02-2006, 09:47 AM
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Default Re: Too Much water Pressure

I've heard about this problem many times but have never experienced it on my 35Ex w/496 HO Mags...anybody had this problem with these engines. I would like to head it off at the pass if it is an issue!

G-
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Old 10-02-2006, 09:54 AM
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Default Re: Too Much water Pressure

Never had problems with my 502s, but really had problems when I went to 540s. Mercury relief valves worked well.
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Old 10-02-2006, 03:32 PM
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Default Re: Too Much water Pressure

Originally Posted by 27 redline fvr
Any links to who sells them
Merc pt #

Last edited by US1 Fountain; 12-02-2011 at 11:14 AM.
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Old 10-02-2006, 04:18 PM
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Default Re: Too Much water Pressure

We have adjustable valves. Must be set with a guage but MUCH cheaper than the Merc part. $ 89.98 each.
Attached Thumbnails Too Much water Pressure-hd_prv-pressure-relief-valve.jpg  
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