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  1. M

    Installing Water Heater w/ closed loop 8.1 engine?

    I'm looking for a bit of help on how to install a water heater with a closed loop cooling engine and what kind of water heater I'll need? I'm looking at two different Kuuma : KUUMA-11812 and KUUMA-11811 (The one I've replaced w/ water cooled engines) What would I need to install it and make it...
  2. M

    Volvo Penta 5.7GXIC-J Misfiring/Black Smoke

    I have an engine on a standalone tank and on a pallet I have running on non ethanol. I've changed out the fuel pump since it was shot to a Chinese one just to get it running. It cranks up and runs but misfires. It has all new spark plugs. The previous owner changed out the fuel rail and the fuel...
  3. M

    Volvo Penta 5.7 GXI Fuel in Oil Runs smooth at idle

    Hi all, thanks for the advice and help in advance. I have an engine I had stored in the warehouse that's going to be used for a project. I ended up getting it to start and it runs good at idle. Compression all checked out around 180 PSI for all cylinders. I ran the engine after doing changing...
  4. M

    2003 Four Winns Vista 268 No power to accessories, cabin accessories, etc. Gauges have power and engine.

    I was changing out the shower sump on my cruiser and I tried to turn on the radio. No power at all. Radio is brand new. Everything else worked on it yesterday, I did accidently leave the battery switch turned to on yesterday and everything worked including the radio. I noticed my batteries...
  5. M

    Marine Fuel Hose in place of Water Hose?

    None of my local dealers carry the 3/8 water hose I need for my water lines on my cabin cruiser. However they have 3/8 fuel hose, would I have any issues using that in place of the water hose? I have one connection that's left to the transom shower that I need it for.
  6. M

    Red Pipe Sealant on T Connections etc on the block/manifolds?

    Can anyone help me out with the type of red liquid thread sealant that's used on the T's and other threaded connections on the engine? I've seen Loctite 554, Gasoilas (Which says it's a permanent sealant), among a few others.
  7. M

    ZF 63 IV water in oil

    I have a ZF IV transmission that I bought part of a mercruiser 8.1 inboard drivetrain. It has water in oil from a bad oil cooler. Does anyone have any recommendations as to what ATF/Oil I should use to flush out the water (15-40 Rotella or ATF) ? The oils much better now but still a bit hazy...
  8. M

    2001 Chaparral 233 Sunesta Single Prop Size?

    How do I figure out what prop size I should use for my deck boat? It had a bad duo prop drive and I swapped it out with a 1.66 VP SX Drive and I wanted to know how to calculate what prop size to use. The engine is a 5.7 GL. Boat is 23 feet and dry weight is 3823 lbs Fuel Capacity is 58 lbs Top...
  9. M

    Boat Lag Screw Mount Stripped

    Anyone have any pointers as to how to go about a proper repair on the fiberglassed in mounts for an inboard engine? Looks like the did a patch job before where the fiberglassed in mount cracked. I went to put another engine in and the lag bolts on one side are good and on the other side one of...
  10. M

    Mercruiser 5.7 MAG MPI Water Pressure Sensor & Oil Pressure Sensor Interchange/Alternatives + 4 in 1 gauge not showing speed and oil pressure

    Anyone have any luck finding alternatives to those sensors mentioned above? 881879T11 Oil pressure sensor 881879T10/881879010 Water pressure sensor I have an issue on my Chaparral 236SSX with a 5.7 MAG MPI where the 4 in one gauge is not showing any oil pressure or showing any speed on the...
  11. M

    Finding out if 8.1 Engine is HO or Base?

    I ran my engine serial number through the database to find out which 8.1 it is on Mercurys website and it pulls up 4 engines which 2 are in my serial number range... Is there anyway to tell if it's an HO or Base by looking at it? Serial number - 0m318790
  12. M

    2003 Four Winns 268 Vista Main Harness Wiring

    Hi all, I'm redoing the barrel connector plug on the main harness that plugs into the engine harness, the pig tail I purchased I was able to match up all the wires from the original boat harness aside from one that I want to be sure before it's reconnected. The new barrel pig tail has a...
  13. M

    PCM MEFI 3/4 Question regarding hours

    Thanks in advance, I have a question regarding MEFI 3/4 ECUs, I'm trying to sort out for sure what the real engine/drivetrain hours on a 2006 Nautique I bought are... The hours if I'm not mistaken on the buggy Faria Gateway gauge is 1127.7 Hours and for the hell of it I scanned the engine...
  14. M

    2005 Volvo Penta 5.7 OSXI-DF

    Hi all, I'm having some issues starting one of the engines I bought for replacement with 111 hours. Seller had a video of the engine running for approx 10-15 seconds. Which again does not prove anything at all. I scanned the engine and only had a MAP sensor code which I swapped out...
  15. M

    Volvo Penta 4.3 GL No Power to Fuel Pump

    I'm getting no power to the fuel pump, if I put direct power to the fuel pump it will run. Engine starts after pumping the throttle several times and stays running obviously until gas runs out. I checked power at green wire on the alternator and I am getting 12V. I checked power to the green...
  16. M

    Kohler 5E Generator crank/no start K2/3 lit up

    I have my generator out on a pallet after I did maintenance, resprayed it and changed out the rusted out pan to a stainless steel one. I never had this generator started before as it's just out of a project Regal Commodore. I have it hooked up to a hose and a battery on a standalone gas tank...
  17. M

    2003 Mercruiser 8.1 HO No Crank No Start Fuel Pump Running

    Hello, I'm having an issue trying to start my engine on a stand. There's enough juice in the batteries. Cranks and Starts when the starter is jumped. Fuel pump turns on when the key is turned. I changed out the starter relay with a new one and still the same issue. I've used this ignition...
  18. M

    Volvo Penta 7.4 GL Slight Water in Oil

    Any suggestions on what to check and how to check where the water is coming in from? Oil is not milky at all aside from a small streak of white on the dipstick which is hardly noticeable. I'm not sure if its condensation or what it was. Should I start with pulling the risers to see if there's...
  19. M

    Kohler 5e generator standalone starting

    Can anyone point me to videos/instructions on how to start a Kohler generator on a table? Where power should be to keep it running? Aside from the starter motor and ground. If there is any machinery/equipment recommended as well to be able to put loads on it that would be great. I have several...
  20. M

    Yamaha F300 Cylinder Head Pressure Testing

    Can anyone give me any directions as to where I can buy pressure test plates for Yamaha F300 cylinder heads?
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