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4bt oil drain
This topic has 8 replies, has 5 voices, and was last updated by
4 years ago February 27, 2018 at 2:09 pm Is it possible to use the following line for an oil drain line?? The blue oil line that drains oil back from a Walker airsep. It is supposed to be capped off when an evironvent CCV kits is install. Does it drain back to oil pan or crank case? I plan on installing the Envirovent kit. What I am thinking is instead of capping this line. Removing the check valve and adding a connection and running line to a built in pump for oil changes. Rea…
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in: Cummins Marine Engines
8 RepliesMay 2, 2020 at 7:05 pm Your picture showing nothing as to where it is attached to the oil pan. And, it shows nothing as to where the Walker 1-way valve drain is. Both of these are critical to your question Am I missing something?Last Post by:
posted: 4 years ago
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Increase HP on 4bt
This topic has 4 replies, has 3 voices, and was last updated by
4 years ago
January 22, 2018 at 8:59 am New to site and My first pair of Cummins. I tried a search with no luck so I apologize if this has already been discussed. I am purchasing a 1996 Bayliner 3388. Engines are 150 HP turbo 4BT’s. I am looking to safely increase the power of this without losing Reliablity. I know there is a 250 version of these and some folks are getting 300-400 hp out of the 4bts in trucks. So my question is. Is it as simple as to turn up the fuel to …
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4 RepliesNovember 11, 2019 at 3:55 pm Good day I was a field service technician with Cummins in Australia in the early 1970s My work used to consist of rating 903 down the mines, that is to detune because of sulphurs and nitrous oxides, rebuilding 855 and 1710 engines 555 504 This was well before the time of bored in the block engines In the late 70s, I started building metal yachts and then in 1986 I founded my own company building aluminium sailing yachts and commercial craft I …Last Post by:
posted: 4 years ago
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Oil Pressure Switch
This topic has 2 replies, has 3 voices, and was last updated by
5 years ago December 10, 2018 at 7:55 pm I have an alarm going off with Good temp and oil pressure. I disconnected the oil pressure switch and alarm does not sound. I have ordered the SMX switch from SBMAR. My question is how should I install the SMX Switch. It has a single pole. The switch I am removing has a clip and two wires going to it. I believe it is cummins part 3056344. Do I attach both wires to the single SMX pole or does one need to go to a short ground? Thx Cpt.Blair
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2 RepliesDecember 10, 2018 at 8:49 pm No, do not attach both wires together. A single terminal switch is engine ground, aka case ground, with the one wire being a signal wire. A twin terminal switch is a floating ground which is a signal wire and a ground wire. Are you sure what you are replacing is a “switch” and not a “sending unit” ? Big difference. The Cummins OEM instrument cluster setup does not include a switch, just the sending unit and it is the…Last Post by:
posted: 5 years ago
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4BT Sherwood pump
This topic has 1 reply, has 2 voices, and was last updated by
5 years ago October 28, 2018 at 6:50 am Iām in the process of changing impeller on port motor almost impossible to get to. After I took out impeller I wiggled th shaft it sit on. Not much but there was a little play. Question1 = Is there supposed to be no movement on that shaft? Question 2= If I remove the entire pump, as I may have to in order to get new impeller installed. Can I just remove and replace pump or will I need to install a new seal of some sort where it bolts to eng…
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1 ReplyOctober 29, 2018 at 6:22 am 1 = No 2 = Yes, a gasket 3 = No What is engine serial # ? What is the history of this pump as to age, maintenance, hours, etc ?Last Post by:
posted: 5 years ago
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4BT Tach issues
This topic has 5 replies, has 3 voices, and was last updated by
6 years ago March 22, 2018 at 6:39 pm I am having problems with my port tachs. I bought the boat with this issue so I cannot provide previous info. The lower helm tach was pegged at 4k with or with out motor running. Nothing on the upper helm. I removed the upper helm tach and installed in lower station, nothing. I put the starboard tach connection on it and tach worked. now I know I have a working tach at lower port station. I have a signal generator at the fly wheel…
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5 RepliesMarch 23, 2018 at 9:39 am Swap the sender is the easiest way test it. If it duplicates you haveyour answerLast Post by:
posted: 6 years ago
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4bt oil drain
