Coolant reservoir leak

Question

Just a note if your coolant reservoir leaks. I spent the hole day today trying to fix a leak from the coolant reservoir on my Cayman 2003. I cut the hose so I could push it in a little more, then the hose would just not go back in, it has a reinforced wire winding that is just smaller than the lip on the reservoir. So I replaced the hose with a new one, re-installed, still leaking. So I replaced the clamp, I also used a different type of clamp, exchange it again at the store, rethighten everything many times with the original clamp, no luck.

After 4 or 5 trials, emptying the said reservoir every time and refilling, I was getting very frustated. I found out that you have to place the clamp exactly at the right place, not too far in, not too close to the reservoir bottom lip. Finaly, at the end of the day, in the dark, I found the spot and it stoped leaking, what a frustating day.

twomed · Answer

Hope you used a constant torque clamp.  A little more $$ but a regular clamp on that fitting will leak again as the hose ages.

mrwizard · Answer

This is going to sound like a doom sayer
But if you have a plastic tank, time too replace it with a metal one
Two choices welded aluminum or welded powder coated steel
I went with steel on our Safari

The plastic one blew out on the road in Az, cost us big time on engine repairs
And the new plastic tank ( polyethylene ) lasted two years..This past summer I put in the steel one

fire_up · Answer

MrWizard wrote:This is going to sound like a doom sayerBut if you have a plastic tank, time too replace it with a metal oneTwo choices welded aluminum or welded powder coated steelI went with steel on our SafariThe plastic one blew out on the road in Az, cost us big time on engine repairsAnd the new plastic tank ( polyethylene ) lasted two years..This past summer I put in the steel oneHey MrWizard, Question for ya. When you are referring to the "plastic" tank-reservoir, are you talking about the horizontal one, just above the radiator, on the right side, as in many diesel Rvs equipped with a rear radiator and, a Freightliner chassis? Is it the one below?And if so, you're also talking about an aluminum replacement one for it? I think I've seen "ONE" either on here or, on another RV forum someplace but can't remember where(imagine that). Again, if it's an aluminum replacement one, can you link a source for that one? I can TIG one up but, sometimes it's just easier to open the wallet. Scott

dsdp_don · Answer

Lately, I've been using PEX clamps, rather than hose clamps. Often they're hard to find, but recently found the PEX clamp tool, like this one, and clamps at Lowes in the plumbing department.

Even though they are one time use and harder to remove, they seal well/tight.

mrwizard · Answer

thats what i'm talking about, BUT mine is about twice that sizedon't think it will fit your coachi'll look for the links..they came from two different places

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Coolant reservoir leak

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