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- Cummins Marine Forum Topics
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Okay to use 33% coolant in 6 bta 5.9
This topic has 2 replies, has 2 voices, and was last updated by
1 year ago
June 25, 2022 at 12:27 pm Climate never below +55Farenhiet, hard to find anything but 33% coolant here that’s why the question.
2 RepliesJune 26, 2022 at 7:57 am txsLast Post by:
posted: 1 year ago
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Where is the drain plug for the Coolant 6BTA5.9
This topic has 3 replies, has 3 voices, and was last updated by
1 year ago
June 25, 2022 at 5:49 pm Hello, New here to the forum and to a new to me Cummins Engine. I need to change the coolant on my boat. I have two cummins engines 6bta5.9. For the life of me I can not figure out where to drain the coolant. If someone could post a pic or give me a site that can show me directly where I would so so appreciate it.
3 RepliesJune 26, 2022 at 6:21 am Thank you JDragon and Rob. Between the image and “below the Heat exchanger” I feel good about finding it today. Thanks again.Last Post by:
posted: 1 year ago
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6bta oil weep turbo
This topic has 2 replies, has 2 voices, and was last updated by
1 year ago
June 25, 2022 at 5:09 pm Noticed a very slight weep tonight at bottom of turbo. Have 10 hours on the SMX Envirovent and nothing is in the puke bottle yet (dry). 200 hours on the turbo. Plenty of spillover height. 13 quarts in the pan. By appearances it seems to be the plug at the bottom of the turbo. I’ve also read the scroll/collar where the clip is will normally weep some oil over time, but I didn’t see an obvious trail to where the oil is collecting. So is the 1”-ish…
2 RepliesJune 26, 2022 at 5:41 am Thanks Rob will doLast Post by:
posted: 1 year ago
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Is it OK to Run Engines With Exhaust Leaks (QSM11’s)
This topic has 4 replies, has 3 voices, and was last updated by
1 year ago
June 22, 2022 at 4:58 pm I have the infamous 2004 QSM 11’s in a 2004 Sea Ray 500. I’ve read many of the articles and suggestions on this forum regarding the proper fix, and recognize the repairs are needed. The problem is, I am in the midwest and have a Cummins dealer in Columbia, Mo and a dealer in Springfield, MO. They are both an hour and a half away. The Columbia dealer does not have a marine tech. The Springfield, MO location is marine certified and has…
4 RepliesJune 25, 2022 at 6:58 am Hi Larry, thanks for the help. I do have another question please. I’ve got an outing the week end of the 4th, then hope to find someone to fix the gasket. If I run at 1000 rpms or below, how long can I do so without risking any other issue. I will only be going 4-5 miles each way. with stops in between. Thanks a bunch. DaveLast Post by:
posted: 1 year ago
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Accelerator/lever position sensor
This topic has 3 replies, has 2 voices, and was last updated by
1 year ago June 20, 2022 at 5:55 am Alarm Spn-1043. Fmi- 3 running on plane and port engine loss power down to idle cleared alarm and went back up to plane speed then loss power back to idle speed , See alarm is accelerator/lever sensor. ZF controls when got back to dock turned key switch on push ZF control up went to 100% on SMX display where is sensor located?
3 RepliesJune 24, 2022 at 7:01 pm We looked thru what you have posted –We think this is a ZF control issue. Study the attachedLast Post by:
posted: 1 year ago
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Newer motor, low battery voltage, hours jumped by 1000
This topic has 3 replies, has 2 voices, and was last updated by
1 year ago
June 13, 2022 at 8:44 am This one is bit baffling. Cummins QSB 6.7, 2 years old, about 125 hours on it. Had a battery bank go bad, so the voltage to this engine dropped below 10 volts. I pressed the parallel button and got the motor going. Alternator seems fine as it shows 13+ volts when running. I changed out the bad battery bank, and the motor starts fine, but the hour meter on that motor shows 1125 instead of 125. Any thoughts? Thanks in advance. Scott
3 RepliesJune 24, 2022 at 7:26 am The problem seemed to correct itself. After a week or so I fired up the ignitions and the display showed the correct hours.Last Post by:
posted: 1 year ago
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Information about fuel leak on 6CTA 8.3 480-E
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago June 22, 2022 at 6:03 pm I have small fuel leak at near top rear of my starboard engine ? Can I try tightening bolts in the area ? What might be the cause ?
1 ReplyJune 24, 2022 at 5:41 am Post very good pics of all –no one here has a crystal ballLast Post by:
posted: 1 year ago
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6CTA 8.3 Broken Dipstick Tube
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago June 22, 2022 at 6:17 pm Hi All, Went to check the oil on my port engine and the whole dipstick tube (dipstick intact) broke off clean right at the block. I have attempted threading in a 5/16″ bolt and tapping out. The tube metal is pretty soft and the bolt just pulled out. Image below has an easy-out in the dipstick tube. Afraid to break the extractor and go from soft metal being stuck to gard metal being stuck. Have put some heat on it thus far with no luck…
1 ReplyJune 24, 2022 at 5:40 am get back 2 ft or so I can see where this is on the engineLast Post by:
posted: 1 year ago
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QSM11 635 Wet Conversion
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago June 22, 2022 at 10:38 pm Considering going under contract with a 2001 Riviera 43 Open Flybridge powered with QSM11 635’s w 1200 hours. Awaiting performance chart data this coming weekend (rpm, gph, egt, kts etc). <br /><br />This hull came with base power of Cat 3116’s at 350hp. Don’t know the performance specs but I would presume a low 20kt cruise at least. i don’t know what the performance would be at 450hp, but I would guess pretty decent. If so, would i…
1 ReplyJune 24, 2022 at 5:33 am It would not best cost effective to convert to wet, but it you would be cost effective to properly re-prop to where your engines only made a max of 450 BHP at 2300-2350 RPM–Last Post by:
posted: 1 year ago
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Thoughts on my Fresh Water Flush Setup?
This topic has 5 replies, has 5 voices, and was last updated by
1 year ago June 17, 2022 at 11:56 am I’ve got it set up, but haven’t run it yet. Here’s the details: Boat/Power: Grand Banks 2008 EU 47/QSC 8.3 Goal: FWF from my fresh water tank so I can flush on mooring ball because I don’t have dock water available, but I do have a water maker. Solution: I utilized an existing port on the base of my water tank, put an inline valve attached to a check valve, then ran 1″ ID reinforced hose 15′ to the strainers …
5 RepliesJune 23, 2022 at 7:09 pm Further to Gene’s comment, my aftercoolers are original from 2002. Never fresh water flushed but slipped in brackish water from day one and serviced the seaboard way since new.Last Post by:
posted: 1 year ago
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Raw Water Pump
This topic has 3 replies, has 3 voices, and was last updated by
1 year ago June 21, 2022 at 8:08 am Chasing down yet another! warm engine issue on the starboard side. Last time i had this issue was 2018 or so and the 160 Thermo and coolant flushed fixed it. I am out of ideas here except that my Sherwood pump is 6 years old now. Is it possible they wear out internally? Impellers are not damaged when swapping. Boat is usable so it is not affecting my summer, as I dont ever push it but for a few seconds at a time coming home. But i want it fixe…
3 RepliesJune 22, 2022 at 7:39 am What’s under the hull for pickup? Has it been checked for any growth/blockage?Last Post by:
posted: 1 year ago
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Installing battery switch
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago
June 21, 2022 at 8:30 am I have 2 8D batteries in the boat. There isn’t a battery switch. I am going to put one in. Recently replaced red starter cable and red alternator cable. Both are 2/0 tinned with heat-shrinked connections. The cables I replaced were 1/0 SAE , taped ends of the wrong size. Each of them had at least a few spots with wire showing. <br />On a typical install, this will be my 1st, what tips can help ?
1 ReplyJune 22, 2022 at 4:45 am What is the distance cables run to starter and ground to engine. I would recommend 4/0 wire size. Also ensure new switch can handle the load. My 6CTA8.3 draw about 650 amps at start (with grid heaters on) Hope this helpsLast Post by:
posted: 1 year ago
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480ce Intake heater not turning on
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago June 21, 2022 at 6:38 pm One of my Air intake heaters gets no voltage up to the heater. I do have voltage at the solenoids below. Something is not telling it to turn on. What could cause that? Also I looked all over for the 10amp fuse but I do not see it behind the aftercooler or in the harness there. Any ideas where it is on a 480ce?
1 ReplyJune 21, 2022 at 7:12 pm Your heater control system is quite complex with lots of wires, relays, connections and operates in a nasty environment–Plus, it how old? 20 yrs ?? Post good pictures of all the pieces, connections, heater ECM etc, etc.. Let’s see that “things look like”. Do you have 2 circuit breakers on the engine? Checked them both? There is a wiring diagram for your engine on this web siteLast Post by:
posted: 1 year ago
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Oil Leak/Gasket Identification Cummins 6cta
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago June 20, 2022 at 7:58 am I need some help to identify the cummins pn for the replacement gasket located right behind the fuel solenoid. I’ve tried parts.cummins.com, but I can’t seem to locate it. There is a very tiny bit of oil leaking from it.
1 ReplyJune 20, 2022 at 7:21 pm As this point, wipe it up 100% spic & span clean , fold up a piece of a cut diaper and put it there…. Then, let me see what you have after a few trips..Last Post by:
posted: 1 year ago
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Dead spot
This topic has 4 replies, has 3 voices, and was last updated by
1 year ago June 16, 2022 at 4:59 am Port motor has dead spot from 1600-2000 rpm trying to get on plain 15-20 seconds then motor will spoolright up and take off .. changed all fuel filters , aftercooler serviced per seaboard way , motor has no smoke issue runs great . Checked throttle cable , fuel shut off Solenoid any help would be appreciated.. is there another filter or screen in injector pump ?
4 RepliesJune 20, 2022 at 7:06 pm You did not really answer my concerns as asked.. Re-read what I posted.Last Post by:
posted: 1 year ago
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6BTA Vulkan Flex Plate Removal? How?
This topic has 4 replies, has 2 voices, and was last updated by
1 year ago
June 18, 2022 at 12:14 pm Hi everyone, Happy fathers day tomorrow! I’m trying to remove the Vulkan Torflex 1000 from my 6BTAs. All as part of the never-ending service to my 6BTAs. (Rear main seal replace). I removed all 8 hex bolts that hold the flex plate to the flywheel, soaked the mating surface edge with WD40, tapped with a wood block all around. No luck. Then I removed all 4 allen head flat countersunk bolts and the 8 cap head allen bolts from inside, and put …
4 RepliesJune 19, 2022 at 2:34 pm Thanks for the tip Tony. Yes, the bell housing edge that mates to the adapter plate has quite a bit of pitting. Ill make sure to paint both surfaces and apply grease to avoid electrolysis from disimilar metals when I reassemble. Should the flexplate to flywheel bolts or the adapter plate to bell housing bolts use loctite?Last Post by:
posted: 1 year ago
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Directing Alternator to another battery
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago June 15, 2022 at 7:59 pm 5.9 BTA 3 wire alternator. I want to make sure I have this right before I put it all back together in a slightly different arrangement. Alternator was not charging and is off a the shop as I type this. In order to simplify things I want the this alternator to just direct its output to the house bank of batteries. If I understand this correctly I need to take the #2 sensing terminal and tie it to the output terminal. The #1 terminal can remain i…
1 ReplyJune 19, 2022 at 6:34 am https://www.sbmar.com/articles/3-wire-alternator-regulator-diagram/ https://www.sbmar.com/articles/cummins-marine-delco-style-alternators-identification/Last Post by:
posted: 1 year ago
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Oil Amount for 6BT Envirovent S&B Filters
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago June 18, 2022 at 1:09 pm I have the 6BT Envirovent from SBMAR and according to the S&B Air Filter Cleaning & Oil Kit instructions, they are very particular about the amount of oil to use. But since these are custom filters for SBMAR, they do not appear in the S&B product listing, which specifies the correct grams of oil to be applied after cleaning. Even though the SBMAR site specifies one filter as 7″x5″ and the other 3″, but there is no…
1 ReplyJune 19, 2022 at 6:30 am If new and the filter is purple, ( or blue) no oil is needed. .. They are pre-oiled If you washed it and it is dry and grey-ish — maybe an ounce of so , drop by drop on the outer pleats. Needs to soak in and spread out over a few hours.. Nothing on u-tube? K&N?Last Post by:
posted: 1 year ago
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BTA 5.9 secondary fuel filter recommendation
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago June 18, 2022 at 10:30 am 91 Ocean Alexander 440 Sundeck with twin cummins BTA 5.9M engines. Boat is equipped with Racor primary fuel filter/water separator system fitted with 10 micron filters. Engine mounted secondary filters are the Fleetguard 42000. Reviewing the specs here they appear to be a multi stage filter {1st Pass / 2nd Pass: 20 mic / 10 mic}. Is this the best filter combination for my application? Should I go with a larger micron rating {say 30} in the prima…
1 ReplyJune 18, 2022 at 11:31 am IMO, Stay with the 10 Mic RacorLast Post by:
posted: 1 year ago
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Oil in antifreeze reservoir
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago
June 15, 2022 at 1:18 pm Wondering why there’s oil in the antifreeze reservoir on a marine Cummins 6B but no antifreeze in the crankcase. Are the heat exchangers shot?
1 ReplyJune 16, 2022 at 12:32 pm Has the engine been overheated? If so, Head gasket failure orwarping/cracking of head is high on the list. Oil pressure is higher than coolant pressure, so when breached, intrusion is initially into the coolant side. The heat exchanger does not c…Last Post by:
posted: 1 year ago
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Okay to use 33% coolant in 6 bta 5.9
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