Ok, i got this thing off, but how the heck does it go on without breakin?? I replaced it because not only age, but i think that it was the cause to my overheating awhile ago. I replaced thermostat, hoses, radiator, and it still gets excessively hot (but i won't let it overheat) At interstate speeds. Am I correct in my thinking?

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--Steve S-- 84 Trans Am 305 HO 5 speed, completely stock will soup up when i get some $$$$$$$$$$

 

I forgot to mention, that sometimes i get a code that says Coolant Temperature Sensor High, but it was disconnected, so i used a butt connector, would that cause an overheat? Although i didn't get a Check Engine light when i overheated

 

Our 83Z (305 HO w/700R4)has the electric fan, but if yours has a belt driven fan (and is like my 81Z) you'll have to loosen up the alternator and push it towards the driver's side till you get the belt around the crank pulley, fan pulley and the alternator. Then you pull back on the alternator and tighten it up. I think running hot must be a design issue as ours tends to do the same. Have you still go the small spoiler under the radiator support? If not, it gets hot as this spoiler forces air up through the radiator. The electric fan control scheme is another problem you don't have with a belt driven fan. They make special high flow thermostats (getting ready to try one out this spring before it heats up.)

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Z's r Best

 

Sounds like you may have gotten a belt that is just a size too short. It should slip right over the pulleys when the alternator is loosened as mentioned in the previous reply. As for the overheating problem, try a cooler thermostat (I'm running a 170) and also check the air damn under the core support. Next would be to make sure the radiator is flowing properly.

Good Luck.

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Working on:
'84 Z28 LG4 305
Added dual elec fans.
145 MPH IROC Speedo
Building 430 HP 350
using primarily GMPP parts.
Block is in shop!

Awaiting results from all 8 ASE tests.

Starting to look like the Kicker poster child!

 

My HO motor uses 4 belts: A/C, PS, WP/alt, and a little one from the WP to the AIR pump. If you have the same setup your fan belt should be a 7445 or 16445 (7/16" or 15/32" wide by 44.5" long)

High Coolant Temp code is probably caused by teh wiring at the sensor... it's in the thermostat housing at the fron tof the intake, right on top, has a yellow and a black wire. If the wires short the ECM will see a sky-high temp; if that happens before the engine has been on for more than 60 seconds or something like that then the ECM knows it's impossible and the reading is bogus and it sets that code. Check the condition of the wires right at the plug; I'll bet they're bare and the copper is touching each other.

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"So many Mustangs, so little time..."

[This message has been edited by RB83L69 (edited December 26, 2000).]