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    Differences between old vs new 3.0? Also 2.5 swapping to 3.0? A few other questions

    So as you some of you guys know the 86 stingray I picked up which the PO thought was winterized wasnt. It has a 2.5 which I believe is the original motor. As soon as I got it fired up after dumping a few bucks into it I noticed a waterfall of fresh water coming from the side of the block behind...
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    Picked up a 86 Sting ray with a 120 HP/alpha 1 gen 1...was winterized. Noob questions

    Well well well...guess I stand corrected about the whole winterization thing. Connecticut winters and a lack of proper storage strikes again lol. I finally was able to fire up the merc 2.5 over the weekend. I threw in a few gallons of gas mixed with startron and it did fire up but I had to cut...
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    Was told to replace a upper shaft seal on my gen 1 outdrive, trying to identify it

    A reputable marina had advised on my alpha 1 gen 1 when doing my impeller to change the seal that’s in the upper unit. I don’t know exactly what it’s called but I want to make sure I have it in my outdrive kit. I think i found it but I believe this is a picture of a gen 2 but it’s in that...
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    Questions regarding adding a water separator to my 86 Stingray 2.5lt....

    Im getting my 120 Merc ready for the water, it doesn't have a spin on filter for a water separator but it does have a built in filter inside the mechanical pump. Would adding a standalone filter setup like the one mess with the vacuum the mechanical pump pulls? Where do people typically mount...
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    Replacing rear jumpseats on bowrider with coolers???

    So my boat is missing one jump seat that and the other one is kinda shot. Before I go and try building my own or perhaps buying them brand new anyone ever just simply put in 2 coolers in their place? They don't have a backing obviously so the gas tank and battery area would be exposed...
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    Which coolant temp sensor for 2.5? Dual?

    I noticed there was two different coolant temp sensors for my 86 120 hp 2.5 lt. What do they mean when they say "Dual" did people run 2 sensors on a 4 cylinder? http://www.mercruiserparts.com/bam/subassembly/30885/963/80 Thanks
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    Cleaning and detailing a bowrider...advice on cleaning and preserving?

    This stingray has been shrunk-wrap for almost 3 years but it still has some mildew or mold on it. Im bringing it back to life this year. The hull itself has some mold or mildew on it, I was wondering what would be the best solution for removing and keeping it in good shape going forward? Ive...
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    Making a doghouse from scratch? Also wooden trim question...

    So I got myself a 86 Stingray that overall is in pretty decent shape. One of the issues were the plywood on the bottom section of the doghouse is really soft. I could most likely milk it till the end of this years season and either fix it or remake one from scratch. Was wondering what is...
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    Old vs new design fuel pump? Merc 120 supplier that wont break the bank?

    Im in the market for a fuel pump for my 86 Merc 120 =. Ive noticed an old style and new style. There seems to be roughly $100 difference between the two. Im not brave enough to rebuild a fuel pump lol. This one is mine...any advice on a trustworthy reasonably priced supplier?
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    Picked up a 86 Sting ray with a 120 HP/alpha 1 gen 1...was winterized. Noob questions

    I know this boat needed a starter before it was winterized and shrink wrapped which I already have ordered. I plan on doing a impeller and lower unit oil. Can any one recommend gear oil and a impeller kit for the gen 1 alpha one? Maybe a good guide to do the impeller? Asides from the normal...
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