this is an update on my continual coolant leak after
shutdown. as you may recall, I changed all hoses, new alum
radiator, electric fans, tstats, etc and after 2 months
developed an annoying leak only after cooldown. about one
cup of coolant each time. after weeks and months of
replacing lower rad hose again, retightening hose clamps
etc, I was finally able to remove the new alum rad and
surprised to find when that it leaked at both sides of
radiator.
i thought that was the least possiblity given that it was
new. I also made sure all copper tubing on top bleed valves
were open, and especially the connection to main filler
there is a coolant hose that comes off there, made sure that
was open.
the shop just returned my fixed radiator, and I am now
watching it for leaks.
apparently the leaks were caused by electrolysis, and from
what I read can take as little as 2 weeks to start leaking.
i just wanted to post to others that if you have a new alum
radiator, as opposed to recored oem, these radiators can
conduct electricity and create eletrolysis and eat away at
your internal welded seams.
i have switched to HOAT hybrid organic acid coolant zerex
g05 and also added no rosion product that should help.
i am also going to have my radiator tested for electrical
current as I dont want to go thru this again.
so if you have an alum radiator, and new electric fans…
caution, make sure there is no electrolysis happening in
your system radiator or it can and will cause a leak…
hope this helps somebody.–
1990 Jag XJS 5.3L v12 Coupe
baltimore, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
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