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    Retro-fit PCV Valve

    I have a 1977 Mercruiser (Chevy) 350 (5.7L) engine with a Q-Jet. The current configuration is with two hoses coming off of the valve cover and venting into the Flame Arrester. My intake manafold has a plugged port about mid way between the carb and flywheel cover. Now for the question. is it...
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    Navman 2100

    I am having a real problem with my NavMan 2100 Fuel Flow management system. I purchased it about a year ago, installed it and used it. Now I am having problems and contacted North Star (they bought out NavMan) and thus far they will not answer any inquires. My problem is the unit; which can...
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    Spark Plugs and engine timing

    First question first (a good place to start.) I have a 1977 Mercruiser 5.7L and the books (all that I have read,) state that the proper spark plug for this engine is R43T. I have heard from 'shade tree mech's" that I can improve the proformance (efficency) if I switch to R43TS I know that my...
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    Gas to Diesel

    I am currently considering repowering my boat, and would like some information concerning the advantages of converting from a 5.7L mercruiser to a smaller Diesel. I realize that more than the engine would have to be changed, and once i make up my mind, those items will be address. The boat...
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    relationship between timing and vacumn

    What is the relationship between engine timing and vacumn? or does it make a difference.
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    Carb Gasket

    I guess this is for the real gru's. What is the difference in proformance between the two available carb to manifold gaskets. one is just a big hole the other is four holes, one for each throat. The engine is a chevy 5.7 and the carb is a Q-Jet. thanks, again
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    oil filter

    I have noticed over time that some folk warn others away from using FRAM oil filters. There must have been some problems with them. Why not use FRAM filters?
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    Happy Holiday

    I would like to thank everyone that has helped me resolve issues with my boat. Have a Happy and Safe holiday on the water as well as the road.
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    proformance and the wallet

    I know there have been many threads and replies concerning proformance and various methods to improve it. Well here is the other side of the coin. With fuel cost as they are, and increasing, it is no longer a matter of how fast one can get from point 'A' to point 'B', but rather if he/she can...
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    General towing

    I have a general towing question that I think requires a bit of experience to properlly answer, which I don't have. I would like to take my boat down to the Keys from NC. Usually I would cruise her down the ICW, but with current fuel cost, I just can't afford it. Anyway, I have a 2001 GMC...
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    Sterndrive lub.

    I have just finished doing my 50 hour check on my Alfa Drive (360 Mercruiser) and when I opened the vent screw it oil was under pretty good pressure the oil came blowing out. I would say 2-4 oz. What surprised me more than that was the color, it was slightly milky. For the life of me I can...
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