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Volvo Penta MD7A Marine Diesel

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Uploaded by on Oct 13, 2007

This is a 28 year old marine diesel, a Volvo Penta MD7A. She's a little tired. Unknown hours, as it has no hour meter. It has no glow plugs, or heat exchanger, instead raw water cooling. It's 56°(F) outside, cooler inside the boat, and the motor hasn't run in days. Not to cheat or anything, but I heated the water in the feed bucket to 140°(F). Feel free to cheer when "Plan B" finally kicks over!

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Uploader Comments (Stellwagen)

  • no glow plugs on those engines i assume? or wasn't started in a while/both...

  • There are no glow plugs on these motors, so this is a pretty normal cold start. They do have a decompression lever and a hand crank, but it's a bit of work to start manually. Once they're warm, they'll start right up.

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All Comments (13)

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  • @towhook I forgot about that.

  • @ford9572 It's ok for a starter to crank up to 30 seconds then it must cool down for 2 minutes before cranking again.

  • She's a runner!!!

  • Isn't it a bit excessive to run the starter for extended periods? I'm thinking it would probably be good to crank it over for 2 to 3 seconds and if it doesn't start up that time, Turn of the ignition, wait a few seconds and try again, Or are extended cranking periods normal for marine diesels like this?

  • Was this a Spring first start after sitting for the winter?

  • Na de winterstalling de boot vorige week te water gelaten en de MD7A start als vanouds met 1 draai van het contactslot.

    30 jaar oud. LOL! Belachelijk lange start op dit filmpje!

  • english: nice sound we had an md6b but it crashed.

    nederlands: mooi geluid wij hadden een md6b maar die is vastgelopen

    groetjes, martijn

    regards, martijn

  • i have a volvo penta diesel model 2002 does anyone know if my motor has glow plugs?

  • Sound good! indeed!

  • Wow. I have a MD7A and it cranks up within 4 or 5 revolutions, even after sitting all winter - 10 months - in Newfoundland. My good luck I guess.

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