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    • Cummins Marine Forum Topics
    • 210hp 6BT Relay control whilst engine running

      This topic has 2 replies, has 3 voices, and was last updated byTony Athens 3 years ago

      March 24, 2021 at 5:21 am Hello I have a 210hp 6BT with a CAV injector pump I am wanting to control a 12v 100a NO relay that has a pull in current of around 200mA, I need this relay to be energized while the engine is running (to control a B2B charger connected between my start battery and the lifepo4 house battery) please note I can not use a VSR. What would be the best idea for wiring a control wire for the rely? I was thinking off the fuel pump solenoid? or is t…

      Started by: Ian in: Instrumentation & Electronics

      2 Replies
      March 24, 2021 at 7:04 pm If all of your current engine wiring is 100% up tp spec, and your relay only draws 200mA, you can use the ignition circuit (Purple key output wire) at the helm station to control it. Put the relay and the added circuit on a 1-2 Amp fuse fast blow fuse….

      Last Post by: Tony Athens posted: 3 years ago

    • Twin Disc MG-502 oil type?

      This topic has 1 reply, has 2 voices, and was last updated byTony Athens 3 years ago

      February 16, 2021 at 5:28 am Hello, I have twin 210hp 6BT’s and Twin Disc MG-502 transmissions, I’m wondering what oil type I should be running in them? and the best method to remove and refill the oil? I’m located in Queensland Australia so the climate here is nice and warm, thanks for your help Cheers Ian

      Started by: Ian in: Marine Transmissions

      1 Reply
      March 1, 2021 at 5:34 pm Any brand name SAE HD 30 wt that you would use in a diesel engine

      Last Post by: Tony Athens posted: 3 years ago

    • 6BT 210 oil fill valve cover

      This topic has 3 replies, has 2 voices, and was last updated byTony Athens 3 years ago

      February 10, 2021 at 2:46 am Hello, I have a 210 6BT, can I relocate the oil filler valve cover from #1 cylinder to #3 cylinder? Cheers Ian

      Started by: Ian in: Cummins Marine Engines

      3 Replies
      February 11, 2021 at 7:42 pm Put that valve cover where it makes it the easiest to fit “YOUR BOAT” as to access.. No issue one way or the other.. Tony

      Last Post by: Tony Athens posted: 3 years ago

    • Fuel primer bulb inline

      This topic has 3 replies, has 3 voices, and was last updated bydonald roth 4 years ago

      June 2, 2019 at 2:28 am I was doing some checks on the 210hp 6BT engines today and noticed the fuel hose going to the lift pump has a few cracks in it and needs replacing, the hose is about 3′ long and attaches to a metal hose that goes back to the racor 500 filter. My question is can I put a primer bulb inline somewhere within the 3′ of hose going to the lift pump? (I do not have enough room to put a primer bulb anywhere else within the fuel system). If i…

      Started by: Ian in: Cummins Marine Engines

      3 Replies
      June 3, 2019 at 9:30 pm Tony is much to modest to toot his horn, so Iā€™ll do it for him. His shop sells a superior squeeze bulb kit with everything youā€™d need to install it with a bypass loop and three valves. They also sell fuel filtration systems that make your racor 500 look like an old sock in a jar! Patronizing Seaboard Marine is a fine way to show how much you appreciate all the great free advice available there.

      Last Post by: donald roth posted: 4 years ago

    • 6BT 210hp dipstick snapped

      This topic has 4 replies, has 3 voices, and was last updated byTony Athens 5 years ago

      April 29, 2018 at 1:14 am I was checking the oil on my 6BT 210 CPL0742 starboard engine and the dipstick snapped at the lower mark. The full length dipstick is 37″ long (940mm) I tried to put a taper where the dipstick snapped off as it shows the low and full marks but it is getting stuck, im guessing on a lip where the tube enters the block. I checked the part number on the cummins site 3907012 but it does not tell me the length (it shows the same part number fo…

      Started by: Ian in: Cummins Marine Engines

      4 Replies
      April 29, 2018 at 5:35 pm We can get you the new dip stick if it is not available locally (we probably have it in stock) ……Otherwise you will have to improvise as best you can.. Our best parts guys–direct emails: brad@sbmar.com or kevin@sbmar.com Tony

      Last Post by: Tony Athens posted: 5 years ago

    • Pipe size help on 6bt 210hp CPL742

      This topic has 4 replies, has 3 voices, and was last updated byIan 6 years ago

      April 8, 2018 at 9:21 pm Hello, I have a 1990 6bt 210 CPL742 serial number 21049752 I am trying to find the pipe size for the pipe that holds the expansion tank to the thermostat housing it is part number 555538. I am in Australia, I have rung Cummins south pacific and they told me it would be X USA or just make my own. My boat is located 1 hours drive away and I cant get there until the weekend which is when I hoped to replace the one that is leaking, does anybody kn…

      Started by: Ian in: Cummins Marine Engines

      4 Replies
      April 10, 2018 at 11:27 am Corey and Brad, thank you very much, thatā€™s the information I need, cheers Ian

      Last Post by: Ian posted: 6 years ago

    • 6BT 210hp low rpm cruising

      This topic has 3 replies, has 2 voices, and was last updated byRob Schepis 6 years ago

      October 26, 2017 at 11:46 pm Hello, I have a pair of 210hp 6BT`s and really enjoy cruising at low speed, I often cruise at around 1400 rpm @ 7-8 knots, kicking back enjoying the scenery (and a cold beer) does it do the engines any harm to cruise at such low RPM for hours on end? cheers Ian

      Started by: Ian in: Cummins Marine Engines

      3 Replies
      October 27, 2017 at 2:54 pm Right back at ya !

      Last Post by: Rob Schepis posted: 6 years ago

    • 6bt 210hp leak from injector pump

      This topic has 5 replies, has 3 voices, and was last updated byTony Athens 6 years ago

      September 1, 2017 at 9:07 pm Hello, I was just changing the raw water impeller and whilst checking for raw water leaks I noticed a diesel leak coming from the bottom of the injector pump, is this something I can fix myself ? Or does it require someone with more than basic skills? I’m guessing it has been leaking for some time, as I have always had a small amount of diesel in the bilge and thought it was coming from a leaking racor, cheers Ian

      Started by: Ian in: Cummins Marine Engines

      5 Replies
      September 3, 2017 at 7:30 am The guy that rebuilds these pumps for me in coming over for dinner tonight.. I’ll ask him about this part on the pump.. Out of my league. Tony

      Last Post by: Tony Athens posted: 6 years ago

    • 210HP 6BT cooland hose size

      This topic has 1 reply, has 2 voices, and was last updated byTony Athens 6 years ago

      August 27, 2017 at 12:21 am Hello, is the heat exchanger coolant hose size on 210 HP 6BT the same size as the one you advertise for the 330/370 hp #11 (HS-3549) Heat Exchanger Coolant Hose 2.375 in. ?? Cheers Ian

      Started by: Ian in: General Discussion

      1 Reply
      August 28, 2017 at 5:35 am The larger bottom hose is a tight 2 3/8″ ID ( or sloppy 2.5″ ID ) on all of the “B” heat exchangers. Tony

      Last Post by: Tony Athens posted: 6 years ago

    • 6bt5.9m pipe question

      This topic has 6 replies, has 3 voices, and was last updated byIan 6 years ago

      April 20, 2017 at 1:38 am Hello I have 6bt5.9m in my boat and I am just wondering what the pipe I have circled in red is for? cheers Ian

      Started by: Ian in: Cummins Marine Engines

      6 Replies
      May 12, 2017 at 6:03 pm Thanks for your reply, Could I remove the pipe and replace it with hoses to the water heater? Red to the in side of the heater and Blue to out return side of the heater? cheers Ian

      Last Post by: Ian posted: 6 years ago

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Viewing 10 topics - 1 through 10 (of 10 total)