[V8] Overheating - revisited
v8q at bellsouth.net
Sat Jun 17 09:22:47 EDT 2006
Having had a few V8s in the family over the nearly 10 years (4 - red,
green, blue and white), the major reason here is a partially blocked
radiator. Period. The problem is poor design coupled with poor
maintenance. The poor design is the smaller electric fan beside the
large clutch fan - this causes high and low temperature spots both
vertically and horizontally across a crossflow. The poor maintenance is
due to not maintaning the proper coolant/coolant levels.
I've seen them partially clog in as little as 4 years. It usually takes 10.
Yes, there is the rare problem with a viscous fan clutch, or a
thermostat, or a fan speed issue. Once even excessive erosion of the
water pump vanes.
But relatively normal temps at highway speeds coupled with overheating
in town are nearly always the radiator on a V8.
Mike Del Tergo wrote:
>all fans are not operating as they should or the airflow over the rad would
>be suffucient to cool the car if it is OK on the hwy, when in stop and go.
>If OK on the hwy then water pump/tstat/and rad are OK. What changes when
>stopped? Air flow, which the fan is supposed to compensate for and
>apparently is not. Could be clutch, as alsways with this car check replace
>the 80 amp connection as well.
>Scott Baumann / PTS Power scott at ptspower.com
> All fans operate as they should (checked all of that out). This is my
>third summer I am facing with these issues. I am seriously considering
>parking this V8 for the summer and only using it for a cold weather car (85%
>of days here in Wisconsin anyway). Any ideas??
>Scott B in WI
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