time line needed

[mikeb]

well i think its time for new hoses i never seen them leak out the threads but this one is!!
..parts on order..

[DFragn]

That's a new hose?
1 clamp is more than ample & placed just behind the outlet rib and neither of yours are tight enough. IMO

[MikeT]

I spent 24 years as a product and manufacturing engineer with an OEM supplier of hoses for the auto industry.  Usually coolant coming from the ends of the hose by way of the reinforcement indicates a cut or damage to the inside of the hose.  Could be a manufacturing flaw, age crack, etc.  If coolant gets through the inner tube and to the reinforcement failure is usually not far away.

Mike T

[MikeT]

Let me add some additional comments.  You indicated the hose is new.  I examined the picture very carefully and it appears that the coolant is coming from the reinforcement.  The reinforcement in this case looks like a knit pattern and the material most likely is Rayon.  Kevlar is yellow and would be over kill in this application as would be Nomex.  The hose is formed on a mandrel to give it the shape after it is cured.  I the mandrel would happen to have a burr on it and a green hose placed on it and then curred it could cut into the inner tube portion of the hose and once coolant gets to the reinforcement it deteriorates quickly and will fail.  Usually in an automobile it takes less than 200 miles.  Unfortunately hoses do get out of the factory this way.  A flaw in the inner tube could also be caused in the extrusion process due to a tooling flaw or undispersed material.  Also 2 clamps are not needed.  If it is just a clamping issue and not coolant getting to the reinforcement, make sure the clamp is located behind the bead on the fitting. 

Mike T.

[Scott from FL, now in Maine]

Um guys, read more carefully. He said he has ordered a new hose, the picture is of his current old hose. One clamp is enough, but I have two on mine also, silly as it sounds I think it looks good   

[MikeT]

Old or new hose, I'm just saying that coolant coming from the reinforcement layer is not normal.

[DFragn]

Um guys, read more carefully. He said he has ordered a new hose, the picture is of his current old hose. One clamp is enough, but I have two on mine also, silly as it sounds I think it looks good   

Well, I for one didn't see his text beginning off of the right side of his photo.

Regardless, if there was an internal split, which I considered, it wouldn't leach through 100% of the fiber runs unless it was TDC and the rest wicked up the leak from the exterior.

There is zero compression bulge of the hose to either side of either clamp. Hence, there's no way to determine the clamps are snug enough from a picture.
It's most likely a slight pressure leak [top side] related to a weak clamp adjustment and or the aluminum outlet, being easily deformed aluminum, is now no longer round, but oval or other deformity and the clamps are not conforming the hose to the odd shape outlet that may need to be gently reshaped [channel-locks very softly & diligently] back to round prior to new hose being installed or for an R&R of the existing hose.

BTW that upper hose replacement is much easier to install at the upper radiator outlet first, then at the Thermo outlet. Many upper outlets are deformed by owners wrestling the upper connection on. Especially with a very tight new hose. Tweak that outlet too many times and it will fracture requiring professional repairs or a new $500.00 radiator. The other 3 outlets are nowhere near as tight as that one.
IMO, if the hose doesn't just slightly begin bulge beyond the clamp surface they're not tight enough.

[Scott from FL, now in Maine]

+1 DFragon  btw the test appears at the bottom of the picture on my display. Probaly different display settings on our computers. 

[hubcapsc]

+1 DFragon  btw the test appears at the bottom of the picture on my display. Probaly different display settings on our computers. 

Grab the corner of your web browser and change the width and height of your browser window, the text
will dynamically move around as the browser does it's best to render the page on each resize...

-Mike

[John Schmidt]

Re. the hose and clamps, notice the light colored ring on the neck. Doesn't look to me like the hose is on as far as it should be, I know mine goes on farther than shown. As for the clamps...I agree....too loose and too many. Move the hose on farther, use one, and only one, clamp and snug it down so it makes a slight depression in the surface of the hose. Don't make like Godzilla and depress the clamp into the hose so hard it starts to cut the surface. The picture looks to me like it's just too loose and not on far enough.

[mikeb]

i think the hose is braking down from the inside i DO have a new one on order and the only way for antifreeze to seep out the threads would be a failure of the rubber from the inside  it had two clamps on it when i got the bike and they are cheap clamps too!  the cause of this is bad ph levels in the antifreeze from the past owner  not changing the fluid  when he should have ..
i have good clamps in stock for this repair

cheap clamp.. no reinforcement  to help keep the hose round and spreed the pressure evenly





reinforcement  to help keep the hose round and spreed the pressure evenly