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    Engine exhaust and manifold overheat

    74 Mercruiser 5.0 302 V8, How warm/hot should the water be leaving the exhaust through the prop with the hose connected? I have an older boat and I know the little things should be failing and not working properly like my engine temp gauge, manifolds, & risers...So one of the many questions I...
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    Mercruiser Overheating

    '74 Mercruiser 225 hp 305 (Ford Engine), Dam thing keeps overheating. Replaced T-stat and impellor, also checked the belt (was loose) tightened and still no difference. After t-stat changed it prolonged the overheating by like 5 minutes, the old t-stat was rusted and had a lot of debris stuck...
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    Lower unit replacement

    Lower Unit went out on 1974 Searay SRV200, 225 hp mercruiser V8 5.0L 305, I just would like to know some options of replacing this unit. I've done a little looking around and how do I know if the LU needs to have the counter rotation on it or not. Or is that just a selling gimmick, whats the...
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    Trim does down not up!!!

    1974 Searay SRV200 Mercruiser 225 hp 5.0L. Was getting ready to dump her in the water, hooked up trailer to truck used trim up and down worked fine. Went inside packed cooler came back out to tilt up trim and doesn't work up but down is fine. Checked wires and fuses nothing loose or...
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    Lower or Upper Unit

    74 Searay 302 5.0L 225 HP Mercruiser. How do you know if the lower or the upper unit has gone out. I know one of the two have or maybe both. Lower unit shouldn't even engage if put in gear right? Started it up, put it in forward engine dies. Start it up, put in reverse nothing engages and rpm's...
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    Lower unit clunks in gear

    Was out and about yesterday enjoying the weather, did some cruising and tubing for a bit. I have a 1974 Searay SRV 200, '74 302 V8 5.0L 225 HP Mercruiser, after a couple rounds of tubing we were switching tubers and I put the boat in gear and it felt like the lower unit was hitting something on...
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    Lower unit clunks in gear

    Was out and about yesterday enjoying the weather, did some cruising and tubing for a bit. I have a 1974 Searay SRV 200, '74 302 V8 5.0L 225 HP Mercruiser, after a couple rounds of tubing we were switching tubers and I put the boat in gear and it felt like the lower unit was hitting something on...
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    Lower unit no reverse

    Just changed the impeller on the lower unit ('74 Mercruiser 302, 5.0 225 hp)had it in gear when I removed it. Changed the impeller put the lower unit back on about 8 times to try and get reverse but nothing works. Test drove it forward is fine, put it in neutral still in gear - I have to ease it...
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