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Topic: ISM 450 Sprung a Leak (Read 707 times) previous topic - next topic

ISM 450 Sprung a Leak

I have a fluid leak on the right side of my engine from a metal tube tube that developed a small pin hole in it. Not sure if it's hydraulic or antifreeze. Photos attached. Also, where would I find the engine vin?  Do you all know the part number?
David and Dana Pendleton
2001 U320 40'
2018 Jeep Rubicon
College Station, TX

Re: ISM 450 Sprung a Leak

Reply #1 –
Assuming it is a 8.3,all I can see from the pictures is a oily engine,get some brake cleaner and engine degreaser and clean the
area,then you can determine what is leaking,looks like oil to me,go on Ebay and look for a parts book,will be easier to find the part.
Your number is on the top area on the timing gear case near the engine oil dipstick,once to have that you can go to Cummins on
line and look up the part.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: ISM 450 Sprung a Leak

Reply #2 –
The engine will be a Cummins M engine.

But the advice to clean the engine to find the SOURCE, rather than necessarily where you see it is excellent.

And, you should be able to identify what fluid it is.

Engine oil (black) is different from hydraulic fluid (clear oil) is different from diesel (light viscosity and smells like diesel) is different from coolant (compare to color of your coolant, and smells like coolant) is different from transmission fluid (lighter viscosity than motor oil and red).

Let us know what you find.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: ISM 450 Sprung a Leak

Reply #3 –
With that being an M-11 the engine tag is on the same side of the engine your leak is and just above it (the tube you show)

With those pics I am not sure but If you find that the liquid is antifreeze the hose should be the cooling line to the air compressor.
If you can get a better pic from above with the bed up I might be able to tell for sure.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: ISM 450 Sprung a Leak

Reply #4 –
Is it the line discussed in this topic? 

Coolant leak from ?
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: ISM 450 Sprung a Leak

Reply #5 –
Michelle,

Mike said to tell you thanks as I was looking for this same info.
Now Mike said that in reply 10 the first pic if you blow it up on the big screen you can see the same line coming off the compressor head.

Pamela & Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: ISM 450 Sprung a Leak

Reply #6 –
I can see the pin hole leak on that tubing, right where it makes a 90 deg bend. You can see it squirting so it would be the coolant line.
Richard & Betty Bark & Keiko our Golden Doodle
2003 U320T 3820 PBDS
Build # 6215
MC # 16926
2016 Chevrolet Colorado 4X4 diesel

Re: ISM 450 Sprung a Leak

Reply #7 –
On fb he said he has a mechanic coming,think I would get the part first then a mechanic.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: ISM 450 Sprung a Leak

Reply #8 –
Quote from: Pamela & Mike –
Michelle,

Mike said to tell you thanks as I was looking for this same info.
Now Mike said that in reply 10 the first pic if you blow it up on the big screen you can see the same line coming off the compressor head.

Pamela & Mike

OK, so in my previous PMs with Dylan, this part is not listed on shop.cummins.com  One needs to contact the closest Cummins location and have them transfer you to a parts sales rep.

We did not pursue further ourselves since that line on our unit appears to be in good condition.

Also as noted in that previous topic, the line might come as bare metal, and it would be good to coat it with rust preventative paint first, if possible (the one on our coach is painted and now has a little extra "POR-15 love" on it.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: ISM 450 Sprung a Leak

Reply #9 –
Not your specific leak, but I'd replace that Gear Cover Plug shown in your first picture ... Should be Cummins P/N 3688114 ~$12  It just a rubber cover that pops in.  Start by cleaning all the gunk around the old plug, then pop out the old and pop in the new.
2000 / 36' / U320 / WTFE
WildEBeest / "Striving to put right what once went wrong"

Re: ISM 450 Sprung a Leak

Reply #10 –
Quote from: Michelle –
this part is not listed on shop.cummins.com  One needs to contact the closest Cummins location and have them transfer you to a parts sales rep.

I can't be for sure due to the age differences and slight routing differences in different years but here is a number to look up and see if you can find a pic of it. 5295242. That number came off the metal tag on our line.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: ISM 450 Sprung a Leak

Reply #11 –
Quote from: Pamela & Mike –
I can't be for sure due to the age differences and slight routing differences in different years but here is a number to look up and see if you can find a pic of it. 5295242. That number came off the metal tag on our line.

Dylan's 2001 and our 2000 show 3400718 in the QuickServe parts.  OP David and Dana have a 2001.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: ISM 450 Sprung a Leak

Reply #12 –
If possible, temporary fix it with piece of rubber with tight hose clamp while waiting for part replacement.

Re: ISM 450 Sprung a Leak

Reply #13 –
Thank you all for the advice...after reviewing the photos I realized they weren't the ones I meant to send...the leak is definitely coolant from the metal coolant line. I've checked the location on the engine block and thus far have not found the SN#. I'll try the break cleaner and see if that helps. I talked to Keith R yesterday and he informed me that FT should have the engine SN on file if I give them the VIN. I appreciate everyones patience with me, we have  had this coach for less than a year and I'm slowly learning....I definitely feel like I'm an IDIOT most of the time. Pamela and Mikes post looks like the correct part just not sure about the configuration. On the hunt for the SN#. Thanks again.
David and Dana Pendleton
2001 U320 40'
2018 Jeep Rubicon
College Station, TX

Re: ISM 450 Sprung a Leak

Reply #14 –
If you can get to a Cummins dealer they should be able to pull up a diagram of the part with or without a serial number.
96 U270 BUILD 4810
85 380SL
Drummonds TN.
 

Re: ISM 450 Sprung a Leak

Reply #15 –
Quote from: DP2 –
I appreciate everyones patience with me, we have  had this coach for less than a year and I'm slowly learning....

We have all been there.  That's why we all try to help when we can.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320