Re: Water pressure valve
hello<br /> it fits in the back lip. using a pick carefully clean all the corroision from the corner and the bore. be careful inserting the grommet. if you lose it to the inside its a pain to retrieve but is retrievable without cover removal. dont ask how I know. the reason is to keep water pressure stable thrhough out the rpm range. a the pump speed increases it can produce to much pressure, so the excess is bled off from the cover to the exhaust and out the prop. as the t-stats open and close it helps keepa steady pressure. if it stick open you willnote a very low pressure tell tale and the block wont fill with water at low speeds and will cause the top cylinders,#1 first, to overheat at low speeds. I use a pair of long needle nose and a long thin screwdriver to install them.
