Recent content by xjfish

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    7.5 Merc. Cooling system issues? What is this tube?

    Update: Fixed I cleaned and reassembled everything previously described and blew out powerhead passages with compressed air. Good telltale now with no overheating. I did not install a thermostat, and may never? I believe the root of the problem was the beat up and poor fitting copper water...
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    7.5 Merc. Cooling system issues? What is this tube?

    This one shows a 'stat. Has the springy cover. I'm going to attempt to reseal water tube (along with replacing it) and see what water flow looks like. Will be blowing out ports with compressed air before reinstalling powerhead. If it cools OK without a thermostat, I may not bother...
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    7.5 Merc. Cooling system issues? What is this tube?

    Yup, there is supposed to be a 'stat per diagram I looked at. Obviously, this will affect water flow but can confirm was not stuck closed. Do you absolutely need one on this engine? I suspect you do?
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    7.5 Merc. Cooling system issues? What is this tube?

    I could also not find that on any parts diagram. It almost seems like someone was trying to create a restriction for some reason? Still waiting for my NOS water tube to show up. I guess I'll just clean it up and put it back together at this point? Also there is no thermostat!! Looks like...
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    7.5 Merc. Cooling system issues? What is this tube?

    Thanks for reply tpenfield! Sorry my post is confusing. I am aware what the water tube is and will be replacing it as the bottom is beat up. Any tips on replacing appreciated. Assuming I will need to remove lower unit and it just press fits into place? The phenolic washer that is supposed...
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    7.5 Merc. Cooling system issues? What is this tube?

    Recently purchased small 14' aluminum boat with an old 7.5 Mercury. '79 model if I'm correct. Previous owner stated no known issues with recent carb kit and impeller. I took said unit on the river and it overheated badly. Had ran briefly with no water and may have destroyed impeller at that...
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    92 Evinrude 40hp lower unit water intrusion: Where to start?

    I had a milky oil in the gear-case situation going on at the end of last season in MN. Its time for me to get this fixed. I have replaced the impeller and related seals a few years ago. All has been well with the lower unit until last year. I did change the gear oil and put some silicone on...
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    Can you help me find this transom corner?

    Hi guys. I'm working on my '68 Crestliner Nordic 17 (will probably start a separate project thread once I have time and get more organized with this). It looks like the boat took a light hit in the starboard right rear and lost the transom cap/corner piece. I'm sure its been at the bottom of...
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    '68 Crestliner Nordic - Fuel tank and misc.

    Hey all, bought this project boat a couple months back needing attention and repair of course, newbie to boats but I'm perfectly capable of following repair information. I have been slowly tinkering with it/collecting parts as time allows. Have the old 120 Mercruiser running seemingly well now...
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