Ed,
I hope that your repair works. These tanks are on the expensive
side. I have a few questions for you. What year and model is your
vehicle? Which engine is in it? I ask these question beyond mere
curiosity. Could you please let me know?
Thanks,
rich!
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On 9/14/2014 9:21 PM, edbreya@... [TekScopes] wrote:
Yes, it runs fully pressurized as an integral part of the cooling
system loop. The coolant filler/relief cap is on it, rather than on
the radiator.
The deed is done. I used the kit NAPA #765-1544, which is basically 1
oz of epoxy, a few square inches of woven fiberglass material, a piece
of sandpaper, and an applicator brush. I decided to goop up the whole
concave wall section - there was also a stress crack about 2 cm long
farther up the side of the tank, in line with the main crack. I
figured maybe that whole section was deforming too much under working
conditions. It came out beautifully, with nice layers of epoxy with
embedded glass, about 1-2 mm thick all the way up.
This was a pretty expensive kit - about $21 - but if it works, then
OK. From the appearance, viscosity, and smell, it seemed like regular
"5-minute" curing mix, but a little heavier due to more filler
materials. I'm sure the glass layer will help a lot too. So, if it
bonded to the polyamide OK, then it should be "permanent" enough, but
if not, then it will blister off eventually from the pressure.
Ed
