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View Full Version : Stupid Daytona keeps overheating????


85shelbycharger
12-25-2005, 10:30 PM
Ok we are fresh out of ideas. The car is a 90 Daytona Shelby w/a 2.5 T1/auto. Car started heating up the other day so we changed the water pump. Still heated up. Then we pulled the head to check if it was warped. It was not warped. Put a new headgasket on. Now just drove it around the block and it heated right back up. Oh we also put in a new thermostat. Can someone tell me what is going on???
Lee'sdaytona
12-26-2005, 12:37 AM
Geeze I hope that wasn't your order of parts replacement! I would say Check for coolent level first and bleed all air from system, than thermosthat, pump next, and lastly pull the head. Your radiator could be so badly clogged that it is inefficient in its cooling ability now...just a thought
-Lee
BadAssPerformance
12-26-2005, 01:40 AM
I'll second the air bubble checking and blockage checking if you havn't done that yet...
Blue Iroc R/T
12-26-2005, 01:53 AM
Change the temp sensor on the front of the block, just below #2 plug.
tryingbe
12-26-2005, 11:08 AM
How long did you drive to go around the block to heat it up?
GLHSKEN
12-26-2005, 12:16 PM
Fire it up cold with the rad cap off... let it warm up and circulate this way. I squeeze the upper rad hose a few times to help draw air out.
GLHSKEN
12-26-2005, 12:16 PM
Change the temp sensor on the front of the block, just below #2 plug.


Second that as well...
85shelbycharger
12-26-2005, 12:59 PM
Hey guys, thanks for the input! We went out in the garage this morning and checked for air in the system and everything, took it for a ride and the gauge stayed where it should :thumb:
Lee'sdaytona
12-26-2005, 03:11 PM
Cool :thumb: Yeah I find that squeezing the upper rad hose really helps to bleed the air out
-Lee
85shelbycharger
12-26-2005, 03:38 PM
Cool :thumb: Yeah I find that squeezing the upper rad hose really helps to bleed the air out
-Lee

Oh it definitely does, I just could have sworn that I did all of that last night :p Thanks again guys!
deuce dodge
12-30-2005, 07:50 PM
note on temp sensor...

be sure you have the correct one......autozone sold us the wrong one.5v dif .approx.

it didnt work

deuce
85shelbycharger
01-01-2006, 05:36 PM
note on temp sensor...

be sure you have the correct one......autozone sold us the wrong one.5v dif .approx.

it didnt work

deuce

Thanks for the heads up deuce. Daytona is running fine now, has been for a week now but I'm still going to start stocking up on extra sensors from the junkyard.
turbovanmanČ
01-01-2006, 05:38 PM
Did you drill the thermostat with a 1/16 hole?
BadAssPerformance
01-01-2006, 07:02 PM
1/16? I've use 1/8"...
turbovanmanČ
01-01-2006, 07:02 PM
Its just an air bleed. I have used both sizes, didn't seem to make any difference.
BadAssPerformance
01-01-2006, 07:04 PM
Its just an air bleed. I have used both sizes, didn't seem to make any difference.

Gotcha. I usually fell em with the plug out of the top of the t-stat housing to help vent too :thumb:
85shelbycharger
01-01-2006, 08:49 PM
No we just left the thermostat alone.
J&H Ryan
01-04-2006, 04:07 PM
No we just left the thermostat alone.
That may have had something to do with making your job more difficult. I just swapped out my T-stat with a 195 for the winter (used a TU O-ring housing -awesome! *shameless plug*) and you could hear the air/fluid making its way through that little hole. Ran it with the cap off and squeezed a few times and it was gravy. My head doesn't even have that allen screw.
cordes
01-04-2006, 04:38 PM
Its just an air bleed. I have used both sizes, didn't seem to make any difference.

My shadow will run really cold in the winter with the 180 T-stat and a 1/8th hole. If I run a 1.16th hole, it will take a little longer to warm up, but it will run warm enough to get the job done.
turbovanmanČ
01-04-2006, 05:51 PM
My shadow will run really cold in the winter with the 180 T-stat and a 1/8th hole. If I run a 1.16th hole, it will take a little longer to warm up, but it will run warm enough to get the job done.

Thats why I swap back to the 195 in winter, the 180 just doesn't cut it, and if the engine doesn't get warm enough-it wears out faster.
cordes
01-04-2006, 06:38 PM
Thats why I swap back to the 195 in winter, the 180 just doesn't cut it, and if the engine doesn't get warm enough-it wears out faster.

Yeah, I was thinking about running it with the 195 this year, but it gets up to a normal opperating temp. I could immagine that it might be a problem when you get just a little further north though.