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    470 "Mystery Carb"

    I have a new to me 1984 3.7L 470.Engine Serial # is 6738510 I can't seem to find anything out about this carburetor from the numbers on it. When I look at the numbers on it I was assuming it was a 1983 model seeing that the engine is a 1984. That would make sense,right? When I Google Mercarb...
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    470 Has Me Stumped

    First off it is a 1984 Mercruiser 3.7 470. Engine serial # 6738510. I've only had it about three weeks and don't know much about marine engines, but I am learning as I go. I did buy Mercruiser manual # 3 and I am using that as my reference along with this very helpful forum. It has a tune up kit...
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    Mercruiser 3.7 hard starting when cold

    Hello everyone, I just purchased this boat last weekend and don't know much about it. It is a 1984 Sea Sprite Sandpiper with the 3.7L 470. Engine serial #6738510. The carb is a Mercarb 2 barrel. The PO started it on the muffs in his driveway but it started really hard. He said it has a "flooding...
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    Need Correct Service Manual For Mercruiser 3.7L 470

    Hello everyone and thank you in advance! This is my first boat purchase so please bear with me. First off the boat is a 1984 Sea Sprite Sandpiper. Engine serial # 6833766. Stern Drive # 6738510. I just purchased this boat yesterday and the PO started it in the driveway with the muffs. It finally...
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