Search results

  1. F

    496 Mag HO exhaust manifold over heat

    I was asking about this problem and the PCM codes a year ago and just heard from the customer that the problem was never fixed. Can anyone help? We sold a 2005 400SS Formula to a customer in Europe and they have issues with the port engine throwing the alarm. The engines are the 496 Mag HO's...
  2. F

    PCM 555 codes

    Hello, I am trying to locate a place explaining the codes from a Rinda scan tool. I delivered a 2005 Formula 400 SS with twin 496 HO engines to a customer and the port side engine throws the alarm on after 4000 rpm. I sent them a Rinda Scan tool and the codes they get are 160 prt emct ovrth and...
  3. F

    Mercruiser 7.4 LX EFI, repower options

    I'm afraid that my original -97 model big block might be toast and I'm mapping out my options for a new engine. It's a Bravo III setup on a 23 feet Cobalt and I think that paying a shop to install all the stuff to a new long block 454 from my old engine might be almost as expensive as buying a...
  4. F

    Mercruiser 7.4LX EFI, water in oil (long story)

    Found the nasty surprise from my big block. I have a Cobalt 23 with the original Mercruiser 7.4 LX EFI + Bravo III 1997. I bought it last January with 205 hours on it, raw water cooling, always stored on a lift since new but Now the last two months on a dock in salt water next to my condo...
Top