-------------------------- eGroups Sponsor -------------------------~-~>
GET A NEXTCARD VISA, in 30 seconds! Get rates
of 2.9% Intro or 9.9% Ongoing APR* and no annual fee!
Apply NOW!
http://click.egroups.com/1/7872/15/_/5149/_/967767616/
---------------------------------------------------------------------_->
Barry:
I have an 86 505 turbo, which I was having the same problem with all the
while I was in Memphis. Except it would also overheat if I had it in stop
and go traffic without the highway bit. I spent a lot of time and money
trying to fix the problems involved with the overheating of mine (new water
pump, thermostats, fan relays, instrument cluster, etc etc.) It wasn't
until I got to Salt Lake City and Andre there worked on the car. He
suggested two things immediately. Number one... when you put in a new
thermostat, drill out the center so you always have some flow to the engine.
505's have a tendency to run hot anyhow... I think I will be backed up on
that prognosis by others on the list. Secondly, you may want to consider
welding the fan. It is on a system that engages and disengages this. This
sometimes malfunctions and can cause some problems. You can arc weld the
fan so it is spinning all the time, and not controlled by a switch. This is
a good idea also. You said that the checked the fans, but I know that I
made the mistake of thinking that this fan that is visible from the inside
of the engine compartment is the electric fan. There are also two electric
fans between the grille and the radiator which are controlled by a relay.
Sometimes this relay goes bad. You can "hotwire" this linkage to see if the
fans are operational, and may consider leaving these on and hotwired if you
have overheating problems. Finally... you may want to consider
reconditioning the radiator. Of all the things that I did, this was the
most successful in keeping the engine cool.
Good luck with it.
Eric
86 505 turbo
Eugene, OR
> Here is what is happening. I leave the house and the outside temp is
below
> 80 Deg. I drive in stop and go traffic for about 20 miles and the temp
Never
> goes over 1/2. [ this is with the AC on ]. I then get on a 4 lane bridge
> where traffic moves at about 80 mph.I drive at this speed for about 5
miles
> then get back into Stop and go traffic. at this point the Temp rises to
the
> One white line below the RED area. I checked and the Electric fan is on.
the
> over flow container is almost full of antifreeze. Now the car is Black
and
> it does get into the 90s here during the day. SO the car seems to reach
this
> one notch below the RED mark pretty quickly on the way home. But once I
get
> out of the traffic and at a 70 MPH or higher speed it drops to the 1/2 way
> mark.
>
> SO whats the guess.. a sticking thermostat? or do these cars run above
> the 3/4 mark on hot days.
> Are they Steel blocks with aluminum heads? if so what is the "melting
> point" ?
> at what about 220 deg I could warp the head?
>
> Thanks
>
> Barry
>
> Recommended format for your email subject lines:
> Model # [Model Letters] Year Subject
>
> Examples:
This archive was generated by hypermail 2b29 : Fri 01 Sep 2000 - 00:22:43 UTC