Leaky Oil Hose

[Jammin']

I discovered a fairly rapid oil leak from one of the oil hoses going between the oil filter housing and the block of about a drop per second or more while running on the starboard 671N. It appears to be coming from the fitting rather than the threads. I have two questions. Where would I get a hose like this made up and how much oil will drain from that location when I remove the hose?

Oil Leak.jpg

[Bob Bradley]

I would expect that if you removed the oil filter and let the line drain out into a pan it wouldn't be too bad. I'd guess a pint or so at the most, depending on the length of the hose. If the engines been off a while there shouldn't be much other than what's in the hose itself.

[Bob Bradley]

Any place that makes hydraulic lines should be able to fabricate one for you.

[kelpy]

It looks like you will have to unfasten the filter adaptor to get the lower hose off. Change out both hoses. Once the filter is off, there should be only a pint as Bob stated. Any hydraulic shop can make those hoses while you wait.

[jim rosenthal]

In our area there is a company named Colliflower who sell Parker-Hannefin fittings and make up hoses. If you bring them the old ones, they can run them up for you in a day or two. There should be a similar company in your area. If you can't find one, and you know anyone who operates heavy equipment, ask them who they use for hydraulic hoses. They'll probably have a go-to shop for these.

[Jammin']

Thanks Jim. That is my area, really. I'm splitting time between Chevy Chase and Colonial Beach. I'll look them up.

I appreciate all the comments. I'll give it a try.

[Bob Bradley]

It must be the day for it. I'm chasing down some leaks in anticipation of putting my 43 up for sale. I pulled off all the tranni lines and turbo oil supply lines on my stbd 6v92ta this afternoon. I was waiting for my lunch order earlier when I posted.

I don't understand why they put swiveling fittings on only one end of the lines to the tranni oil cooler. The cooler end has 3/4 male pipe thread, which means I had to rotate the entire 5 ft lines, spilling oil all around the er to get them off. I'm fixing that when the new ones go back on.

[RichardM]

I just did mine last week on my 6V92ta. All 16 hydraulic hoses with Parker 221FR. Not cheap and a good 12 hours of work. About a 1000$ for all hoses and I reused the fittings. Some hoses are hard to get to on my boat. 2 were already leaking at the fittings and 2 were on the edge of bursting under the metal clamp Detroit used to hold them down. Yeah the tranny ones are a PITA for sure. It was a 2 person job just to get them out. Lost about 2 pints for the whole job.

[RichardM]

Next year, I'll do all the fuel hoses...

[racclarkson@gmail.com]

Lost about 2 pints for the whole job.

Oil or blood?