well done.
I love "alternate" fixes that work well........
Thanks for posting your results.
Henry
----- Original Message -----
From: "Rich" <rj_olaveson@yahoo.com>
To: <diesel_mercedes@yahoogroups.com>
Sent: Tuesday, February 05, 2008 9:27 AM
Subject: [diesel_mercedes] JB Weld repair of pitted aluminum
I keep forgetting to write about this.
Many months ago, I replaced some radiator hoses, including the short
stubby bypass hose that goes from the water pump to the thermostat
housing. Some months later, it began to seep a little...just a few
drops over night. I tighened the clamps a little and the seepage
increased. The seepage was out the end of the hose, where you can
see the reinforcement threads.
So I disassembled to have a look see.
The housing stubs where the hoses connect were very pitted,
including one pinhole all the way through. This one was not the
leaker. My guess is that where the bypass hose was pressed into a
pit by clamping pressure, the inner rubber layer was cut.
I cleaned the parts with brake cleaner and filled all the pits I
could find with JB Weld, reasoning that I could just replace the
parts for $$ or try the repair and if it doesnt' work and I still
have to replace the parts, I'm no worse off except for spending a
little time.
JB Weld stays tacky for quite a while. I had another car running at
the time, so I let it set for 2 weeks. Then I filed and sanded it
smooth and reassembled. It looked pretty good, smooth and dry with
no tackyness. Of course, the proof of that will be next
disassembly. See if the JB stays, or comes off with the hose...but
that's for another day.
It has been leakfree for about a month now.
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