Intake manifold water line
#1
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Does anyone know why there is a 5/8 water hose from the stock merc. water block pump that feeds into the intake manifold just below the thermostat. Is it needed and does it make a difference on a Gen 4 as compared to a Gen 5? Could this hose add or reduce water pressure in the block?or does it just help regulate water temp.?
Thanks Nordic95
Thanks Nordic95
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Hey Anthony, been wondering the same myself. From my understanding it's a bypass for when the t-stat hasn't opened yet. Lets water circulate (warm up) until t-stat opens and probably helps regulate psi a little until t-stat opens.
I want to put water psi gauges in my manifolds so I'll be curious to see what others have done. My t-stats are drilled so not so worried about psi build up. A little longer for warm up shouldn't hurt.
I want to put water psi gauges in my manifolds so I'll be curious to see what others have done. My t-stats are drilled so not so worried about psi build up. A little longer for warm up shouldn't hurt.
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Hey Anthony, been wondering the same myself. From my understanding it's a bypass for when the t-stat hasn't opened yet. Lets water circulate (warm up) until t-stat opens and probably helps regulate psi a little until t-stat opens.
I want to put water psi gauges in my manifolds so I'll be curious to see what others have done. My t-stats are drilled so not so worried about psi build up. A little longer for warm up shouldn't hurt.
I want to put water psi gauges in my manifolds so I'll be curious to see what others have done. My t-stats are drilled so not so worried about psi build up. A little longer for warm up shouldn't hurt.
Anthony
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I would guess that the hose from the t stat is above the waterline in the block. And unless the water in the hose leak down it could prime the pump. Just what someone told me. I'm running a crossover on my mark IV so i have never thought about it.
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Zanie
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03-10-2005 10:58 AM