I have to agree with John, it doesn't make sense. While B's run hot,
they don't
typically run that hot. To get them running that hot one of the
following has to
occur:
a) The thermostat doesn't open (or doesn't open all the way)
b) The Radiator is clogged
c) The fan isn't pulling air (fan clutch is cooked)
d) Low coolant
There are more exotic problems like engine running so poorly it runs
ultra hot,
but I'm guessing you'd notice that. Any chance the pulleys have been changed
and they put the wrong size pulleys on (making the water pump spin slower)?
At this point I'd start with easy ones:
1) pull the thermostat (make sure it was put in the correct way while
your looking)
and see if that helps
2) See if it overheats sitting idling or only at highway cruising speeds
(fan clutch)
3) the turning the heater on gives more "radiator" surface area. If this
helps and
the above don't, I'd start looking back at the radiator.
Keep in mind, with outside temps in the 100's, I'd expect a B to run in the
210-220 zone. With a 16lb radiator cap, you're good up to 244 before you'll
boil over (assuming 50/50 coolant).
Seth
#1544
John T. Blair wrote:
> At 05:58 PM 8/15/2008, Breton48 wrote:
>
> >Thanks.... and to answer your questions:
>
> >1. What was the temp gauge reading? - I stopped everytime the gauge
> >reading reached 250....
>
> >2. Has the fan clutch been replaced? - No, but it has been tested
> and the tech
> >said it's working fine. I also have an electric fan in front of the
> radiator, and it
> >was on all the time yesterday.
>
> >3. Is there a shroud around the fan? - Yes
>
> >4. Have you replaced the radiator cap? - Yes.
>
> >5. Do you have the hood seal on across the plenumn between the 2 wiper
> >xmissions? - Yes.
>
> >6. Did you try to turn on the heater when you were driving and it was
> over
> >heating? - No - as the windows cannot be opened yet (sealant still
> curing, the
> >told me not to open the windows),...
>
> Jacques,
>
> Wow!! I'm stumped. I understand not rolling down the windows. You
> might
> want to try pulling the plenumn seal out. There has been an ongoing
> debate
> about that, but no conclusive evidence. Just like pulling out the
> thermostat.
> You're not supposed to do that, but I had to do it every summer in my
> Morgan
> when I was a teenager.
>
> >I'll check, but I am a little apprehensive as I have seen some of
> Tanner's
> >prices, and they always seem more than I would be willing to pay.
>
> I understand. Some of his prices do seem high, others are quite
> reasonable,
> like body panels.
>
> >I already have a new high efficiency recored radiator - I think it's
> as big
> >as the tech thought he could fit in there. I'll check to see if the new
> >radiator is blocked though...
>
> While that's possible I doubt it.
>
> Man I'm stumped. Sorry. Maybe someone else will come up with some idea.
>
> John
|