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    2000 Johnson 70 j70plsis

    I just picked up a 2000 Johnson 70 hp outboard from Marketplace. The seller was very clear, it overheated and one cylinder sleeve has rotated out of position. That's OK, I bought a short block the day before and wanted this for parts anyway. So, I decided to take it apart and split the block to...
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    Compression too high?

    I'm looking at a '97 E70TLE powerhead to replace my failed '01 J70PLSIS powerhead. My concern is their purported compression is 155 on all three cylinders. Is that high for a used PH? I don't have the compression specs for that PH but most info I've found seems to put good compression at about...
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    1981 Mercury 75hp water pump question

    I'm replacing the water pump in my 81 75hp mercury ... while cleaning up the base gasket that sits on the top of the gear housing I found that there is a ridged section. It looks like the water pump base should be notched but it isn't, neither is the old one nor in the pictures I've found online...
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    84 SS 160

    A couple weeks ago I was taking one of my several-times daily walks through Craigslist when I caught this listing for a 1984 Starcraft SS 160. The motor appears to be a 1981 Mercury 70 hp based on the SN. The price was $750 so I sent off an email, expecting the few-hours old listing to have...
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    2001 Johnson 70hp - rebuildable?

    I picked up a 2001 Johnson 70 hp (j70plsis) a few years ago. It would start right up and idle but wouldn't go without stalling until it warmed up. Then it would hit about 5300 rpms open water. Compression was weak, 90/90/72, and lots of sludge dripping out of the lower unit even after new seals...
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