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  1. david_h

    CAT 3126 Fuel Prime Pump Replacing

    I am wondering if anyone has changed one of these before? I am replacing one of the fuel priming pumps on my boat. Lucky it is on the 'easy' side of the engine compartment. I believe that if I remove the fuel filter and small metal pipe that runs between the priming pump and the fuel filter...
  2. david_h

    CAT3126 Oil Pressure Sender

    I have a pair of CAT 3126s on my SeaRay. The Port helm oil pressure gauge is very bouncy, and wavers all over the place. The engine mounted oil pressure gauge is steady. Also, I swapped the helm oil pressure gauges, and the port helm oil pressure gauge is still bouncy after the swap. So, I...
  3. david_h

    CAT 3126 Heat Exchanger End Cap Removal

    I need to remove a couple of very stuck sac anodes from the end caps of one of my heat exchangers. I have one stuck anode in each end cap of the heat exchanger. Will I need to drain the anti-freeze prior to removing the end caps? I actually already started to remove the end cap closest to the...
  4. david_h

    12V Power Lines for Fridge

    I have a practically brand new fridge in my 400DB installed by the PO. 14 months old so still in warranty. Unfortunately the PO went with a Norcold. Model DE0061L. The fridge runs fine on 120VAC but allows the freezer to thaw when running on 12VDC. Betteries in the boat are brand new and...
  5. david_h

    CAT 3126 Battery recommendations?

    My 400 sedan bridge has twin CAT 3126 engines. This spring the existing batteries would not turn the engines over unless the 'emergency' switch was depressed. The existing batteries were group 31 deep cycles, 2 in parallel per engine. Not sure of the battery age in this new to us boat. My...
  6. david_h

    Sacrificial Anode Location Recommendations (400DB)

    I am looking for recommendations from fellow 400DB owners on the normal locations for sacrificial anodes. On our new to us year 2000 400DB I am looking to replace the anodes before spring launch. The props have a fair bit of corrosion (likely stay current corrosion) and I have been strongly...
  7. david_h

    Need new props for cat 3126 (400 sedan bridge)

    I was wondering if anyone has had to replace the props on a 400 Sedan Bridge running CAT 3126s? Ours are in need of replacement. The current props are Nibral 22 x 24, (not sure of hub/shaft size). If you have replaced them and can advise where you got them, that would be great. tks DAVE
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