Cold water line leaking help

[villain style]

So today I decided to replace the kitchen faucet with a new one. The old one would not provide any pressure. I hooked the new one and the pressure was great. Then I had a leak start at the black thumb screw in the brass fitting. I used Teflon tape to start with and leaked so i tried it without tape. Still leaks. Anyone know how to fix?

 

[wayne0]

Tighten it?

 

[paulswagelock]

Is it leaking through the threads or at the slip joint in the fitting? if threads, wrap it heavier with Teflon tape so it fills the voids and tighten down.

 

[my3sons]

Photo looks like the type of fitting that needs a rubber “cone” type washer?
Buy a few if they are. Take it apart and look in the thumb screw coupling.

I used to have those type fittings on my 360.

 

[villain style]

Is it leaking through the threads or at the slip joint in the fitting? if threads, wrap it heavier with Teflon tape so it fills the voids and tighten down.

It appears to be leaking thru the threads of the black coupler and the brass fitting. I’ll try the Teflon again

 

[villain style]

Photo looks like the type of fitting that needs a rubber “cone” type washer?
Buy a few if they are. Take it apart and look in the thumb screw coupling.
View attachment 88167
I used to have those type fittings on my 360.

I didn’t see anything like that on the other fitting but it does make sense.

 

[bbwhitejr]

Check to be sure it is not leaking behind the black female connector. The “crimp/clamp” is brass and relaxes over time and will drip.

Bennett

 

[b_arrington]

Those cone washers can wear out. If they are old and compressed and you take apart the fitting, no amount of tightening or Teflon tape will help. Only a new cone washer would stop the leak in that case.

Those crimp hoses start to leak over time too, as Bennet said.

 

[bajturner]

It appears to be leaking thru the threads of the black coupler and the brass fitting. I’ll try the Teflon again

If that is the case, the leak is likely from a worn or missing cone washer as others have suggested. I replaced the faucet for the sink in the head this spring and had the same problem.

 

[villain style]

I think the cone washer is exactly the issue here. The old one fell out and was crsuhed. I thought it was part of the old faucet I removed. There is no cone washer on the fitting. I'm on the hunt for them now... Thanks everyone!!! I'll post back if that fixed me up...

 

[northern]

In my previous life I ran the maintenance department for a company. On pipe they used pipe dope then Teflon tape. I do it now and do not seem to have leaks

 

[villain style]

This was the part that fixed me up. Thank you everyone. And my wife thanks you too.
Item # Description Qty
SEATECH CONE SEAL - 1/2 NPS 161-08

 

[brewster16]

Another win for man in MAN vs. BOAT!

 

[Shaps]

is there some easy way to get the old cone washers out?

 

[Henry Boyd]

If it’s leaking through the threads regardless of thread coating, it may be incompatible threads. On our 280 the wet bar faucet was European made and had metric threads. If you tried to screw an American threaded piece to metric there will be a mismatch. The other possible miss may be pipe threads versus machine threads.

 

[villain style]

is there some easy way to get the old cone washers out?

Mine fell out when I disconnected connections.. Maybe a small pick or similar tool..