Search results

  1. J

    Water in oil AGAIN !!??

    I just recently had my twin 7.4,s rebuilt from the heads up. Had the heads machined........new manifoldss ....risers ..new gaskets etc. I then put about 50 miles on them.no problems whatsoever. I checked the oil after each run ..gauges all stayes where they should be untill my last trip out> As...
  2. J

    Correct plugs

    I have twin 1998 7.4 mercruiser inboards. L29 Generation 6 ( I believe). When I went to buy new plugs, I was told (by the marine store) that I have had the incorrect spark plugs installed after I got my last tune up. When I asked the mechanic who installed them about this , he stated that he...
  3. J

    Mercruiser Risers

    Mercruiser risers I just purchased a set of risers and manifilolds for two 1998 7,4 MPI engines. The risers came with the following "note" <<<Mercruiser did away with 1/8" drain at bottom of Elbow, so if owner is feeding a dripless shaft log (inboard boats only) he will need to pull cooling...
  4. J

    Mercruiser risers

    I just purchased a set of risers and manifilolds for two 1998 7,4 MPI engines. The risers came with the following "note" <<<Mercruiser did away with 1/8" drain at bottom of Elbow, so if owner is feeding a dripless shaft log (inboard boats only) he will need to pull cooling water from another...
Top