Hi all,<br />I'm in the process of rebuilding my 175, after a "mechanic" blew it up in his shop by running it without oil.<br /><br />I have had a few questions, and now I have another. When I disassembled the relief valve, I noticed that the little screw that holds the poppet to the diaphram didn't have any washer. The diaphram was only held by the head of the screw. I cleaned everything up and replaced the gaskets and reassembled. It was kind of hard, because the screw head wanted to pull thru the diaphram if I let the spring go.<br /><br />Everything seemed to be working fine before the motor fried, but it seemed there should be a washer under the head of the screw. I looked at a schematic, and lo and behold, it calls for a washer. But I have also noticed many differences on other parts when I enter my serial number to bring up a parts diagram, so I don't always trust them to be entirely accurate. The guy who owned the boat before me said he never touched the relief valve, so it came like this from the factory.<br /><br />Does everyone have a washer that sits in front of the diaphram under the screw? Anyone care to guess about what size the OD is if there is one? <br /><br />I have the type of relief valve that has 4 screws, and requires 2 gaskets. Is it normal to have to "load" the spring to install it? Its been a while since I removed it, and I want to make sure I have it re-installed correctly. <br /><br />I have "hopefully" attached a link to a parts diagram, mine is the top one shown of the 3 types.<br /><br />Thanks,<br />Rich
