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  1. W

    Engine Overheating

    Thank you for all the replies. This is the first time I have replaced the impeller, when I took the old one out, it was trashed and the housing was somewhat melted. So I replaced all the seals, gaskets, impeller and housing. I did end up going with an aftermarket one (housing and all) which was...
  2. W

    Engine Overheating

    Hi everyone, I recently replaced the impeller on my 1991 OMC 5.7l, I noticed it was running hot, so I thought it may be the thermostat, so I replaced that as well. It still runs really hot, and I cannot figure out why. The temp is OK, until I engage the outdrive, then it gets hot so I disengage...
  3. W

    Thermostat Replacement in 1992 OMC cobra

    @Grub54891 thank you!
  4. W

    Thermostat Replacement in 1992 OMC cobra

    I have searched the threads for a definitive answer on this and I just can not find one, so I was hoping someone can help me out. I am replacing the thermostat on my 1992 omc cobra 5.7L and was wondering if I should put anything on the o-ring that holds it in place? I have seen a few different...
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