Honda Pacific Coast ipcrc Archives

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Overheating problem solved!
Written by skyeenter on 12/13/2011 at 03:07 am

Tony, it's possible this PC could have been in a flood. Brackish water has a
lot of silt and if the water rises slowly the silt will settle in cracks and
crevices too small to see without close inspection. Most riders don't ride on
dirt/muddy roads, so I'm leaving that one out. skye

--- In ipcrc@yahoogroups.com, "Tony Mackin" <tony_mackin@...> wrote:
>
> I posted a while ago about my problem with overheating. Basically the bike
seemed prone to overheating and replacing the radiator cap and thermostat didn't
solve it. (Mind you, that wasn't a waste of money as the original cap was worn
and the original thermostat had seized in the open position). The overheating
tended to occur when stationary or in slow-moving traffic. This suggested to me
that there was a problem with air flow through the radiator. I thought that the
fan might be running slow, which would explain the syptoms. However, before
trying to replace the fan I decided to check the rad for external blockage.
When I first noticed the problem I had tried brushing the rad to remove some
crud but that didn't seem to sort it. This time round I went at it with a
pressure washer and a surprising quantity of silt/dust/dead flies etc. got blown
out of the rad. A subsequent good long run resulted in the temp guage being in
the lower third whilst moving quickly and never more than slightly over half way
in slow traffic or when stopped.
>
> This is the first time in many years of bike ownership that I have had the
problem of a rad being gunged up externally to this extent. Particularly
surprising as the bike has less than 20,000 miles (genuine as far as I can tell)
on it. I might have suspected it sooner on a higher mileage bike. I just goes
to show - always check the simple options early on. I'm glad I tried this
before trying to replace the fan!
>