- This topic has 17 replies, 4 voices, and was last updated 6 years ago by
.
-
Topic
-
Hi All, I’ll cut and paste my original situation with my QSC, and the apparent issue, which has returned
within 3 months:
Hi all, I finally got my Smartcraft issue resolved, kinda costly so I figured it may help others to post the discovery of corroded pins on one of the 40 pin ECM sockets. 3 pins gone, one half gone!No signs of moisture in the socket, just pins gone.
Seems one of the 40 pin harness connectors on the ECM had some sort of goo inside it, discovered when the tech opened it to re-pin the connector. Substance inside it seemed caustic/acidic or some sort of cleaner type residue, as he sprayed it out and got some on himself, which burned a bit.
Bilge has never been cleaned with anything other than water with a touch of spray nine, and by me, never hosed. hands and knees wipe down.
Bilge has never had water in it. (and certainly never up to the ECM mounting height!)
Totally inexplicable. In any case, a new ECM was programmed with the data from the original, and a new Sim module also as it may have been corrupted/fried by the missing connector pins.
Engine display now shows all the info it should. 4 hr. run back from Lauderdale Fla was nice with data to watch!
One other tech tried finding this issue, late 2015 (correct, no engine data for over a year!) but to my knowledge did not take apart the 40 pin connectors, but did take the ECM to his shop to update.
No missing pins were noticed at that time. Seeing as the problem pre-existed both techs (both authorized Cummins dealers) and no one had ever worked in the engine room or on the engine aside myself, I have to assume the goo was always there.Ā
Engine is under the salon, never any leaks of anything from above.
The only thing I can think of is the harness wire is gel filled and oozed into the connector? IĀ“ve used direct burial wire (coax, phone trunks) that were but that gel doesnĀ“t eat the wire!
If anyone has any idea IĀ“d love to hear it,
Chris
Ā
-
Vessel Name: Tenacious
Engines: 6BTA 5.9 330's - "Seaboard Style"
Location: Long Island, NY
Country: USA
Drip Loop
I haven’t seen any pics of what you are working with but could a drip loop be implemented?
1 user thanked author for this post.
It strikes again
Cut and pasted from email sent to Corey:
3 months in, I lose vessel view engine data again, and this time one pin is gone.ĀAgain, no sign of any fluid or residue around the ecm, plug intercooler etc.ĀI do not fault the shop,or their tech, although perhaps it would have been wise to replace the deutsch plug, not re-pin, as the inner and outer seals were not replaced.ĀAnother ECM has been ordered, as well as a replacement harness.The moisture source is still a mystery. The plug is the one closest to the intercooler, furthest from the water pump. The right hand set of 25 pins with either 3 or 1 missing are all tarnished on both ECM’s. the socket and pins of the other closest to the water pump are clean and shiny. (as are the left set of 25 on the socket with missing pins!)Ā1) can Tony and yourself give me any idea what is happening here? Where this moisture is coming from?Ā Ā I was told these are disposable Non core ECM’s. Also the Sim Module was replaced on the first go around, also non core/fixable according to the shop.ĀShould cummins or the shop be stepping up to the plate in any way?ĀThe engine runs great btw, and I want to replace the exhaust jacket sometime soon, due to another discussion on boat diesel. So far not a problem, but, I like to be pro-active.It is a single screw boat!ĀRegards, and thanks for any insight. At this rate i’ll be buying 4 ECMs/year! Obviously unacceptable.
You must be logged in to reply to this topic.