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  Heater not working

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Author Topic:   Heater not working
66bluefb
Gearhead

Posts: 467
From: Okla.City,Okla.
Registered: May 2002

posted 12-07-2002 12:12 PM     Click Here to See the Profile for 66bluefb   Click Here to Email 66bluefb     Edit/Delete Message   Reply w/Quote
I took my 66-289 heads off a couple of weeks ago in my 66 stang to redrill my steam holes to match my 86-302 block. Now the heater does not blow hot air and it did before. I checked my control levers and I can hear them opening and closing. The only thing I can think of is the thermostat which is only 4 months old. Is there something else I should look at before replacing thermostat? It seems that I work on this car all the time, and sometimes I get discouraged and think about getting rid of it. But when everything is working I wouldn't trade it for all most anything. Thanks, Tony

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http://ourworld.cs.com/blagintony/myhomepage/auto.html
86-302 HO bored .030 over crank .010 under
B-303 cam ,harland sharp roller rockers
performer rpm intake, 625 carter
66-289 heads, ported with 160-194 valves, 3 angle valve job
4 speed toploader
pony seats

[This message has been edited by 66bluefb (edited 12-07-2002).]

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V8 Thumper
Gearhead

Posts: 3603
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 12-07-2002 01:31 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
The thermostat wouldn't have anything to do with the heater not working unfortunately

The heater core is just a little radiator under your dash; a heat exchanger just like the one in front of the motor. It's got an upper and lower hose, both need to be hooked up of course (one to the intake manifold, one to the water pump). If the hoses are hooked up, there's got to be something with the temp adjustment. It draws in outside air and blows it into the passanger compartment; routes the air either through the heater core (hot air) or around it (cool air). I'd guess that the cable adjustment slipped

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66bluefb
Gearhead

Posts: 467
From: Okla.City,Okla.
Registered: May 2002

posted 12-07-2002 02:21 PM     Click Here to See the Profile for 66bluefb   Click Here to Email 66bluefb     Edit/Delete Message   Reply w/Quote
Thanks Todd, I will go check that now.Tony

------------------
http://ourworld.cs.com/blagintony/myhomepage/auto.html
86-302 HO bored .030 over crank .010 under
B-303 cam ,harland sharp roller rockers
performer rpm intake, 625 carter
66-289 heads, ported with 160-194 valves, 3 angle valve job
4 speed toploader
pony seats

IP: Logged

mustangboy
Gearhead

Posts: 692
From: Ont, Canada
Registered: Mar 2002

posted 12-08-2002 12:55 AM     Click Here to See the Profile for mustangboy     Edit/Delete Message   Reply w/Quote
You may have a big air pocket trapped in your heater core.After the engine is hot feel the hoses coming from the heater core.They should both be hot.The air will usually work itself out but I have had to pull one hose off(the cold one) and let the coolant start to come through on a stubborn one.

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66bluefb
Gearhead

Posts: 467
From: Okla.City,Okla.
Registered: May 2002

posted 12-08-2002 12:11 PM     Click Here to See the Profile for 66bluefb   Click Here to Email 66bluefb     Edit/Delete Message   Reply w/Quote

Thanks Todd and Mustangboy, I drove my car this morning till it got warm and then felt my hoses. Only one was hot, the other was just warm.I took my heater hoses off and stuck a garden hose on one end and water started coming out of the other end and it sputtered a couple of times and then really started to flow.My heater is working good now.You guys saved me the cost of a new thermostat and gasket and I still wouldn`t have got it fixed.Thanks again,Tony

------------------
http://ourworld.cs.com/blagintony/myhomepage/auto.html
86-302 HO bored .030 over crank .010 under
B-303 cam ,harland sharp roller rockers
performer rpm intake, 625 carter
66-289 heads, ported with 160-194 valves, 3 angle valve job
4 speed toploader
pony seats

IP: Logged

Lennie_21
Journeyman

Posts: 92
From: Denton, TX
Registered: Mar 2001

posted 12-08-2002 01:14 PM     Click Here to See the Profile for Lennie_21   Click Here to Email Lennie_21     Edit/Delete Message   Reply w/Quote
I had the same problem many many years ago when I put a new engine in my 68 Torino GT. Had an air pocket inside the heater core and it just wouldn't heat the car. I pulled the upper hose off and it almost seemed pressurized when I removed the hose. After that, no more problems.

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Jeff
Gearhead

Posts: 280
From: Moore, OK USA
Registered: Mar 2001

posted 12-09-2002 03:27 PM     Click Here to See the Profile for Jeff   Click Here to Email Jeff     Edit/Delete Message   Reply w/Quote
Intake hose to lower heater core, wp hose to upper heater core. Is this the way yours are connected?

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66bluefb
Gearhead

Posts: 467
From: Okla.City,Okla.
Registered: May 2002

posted 12-09-2002 06:48 PM     Click Here to See the Profile for 66bluefb   Click Here to Email 66bluefb     Edit/Delete Message   Reply w/Quote
Jeff, No my intake hose is connected to the top.Its always been that way since I`ve had the car.One hose is longer than the other one so it is connected to the water pump.Does it matter?Tonyi

------------------
http://ourworld.cs.com/blagintony/myhomepage/auto.html
86-302 HO bored .030 over crank .010 under
B-303 cam ,harland sharp roller rockers
performer rpm intake, 625 carter
66-289 heads, ported with 160-194 valves, 3 angle valve job
4 speed toploader
pony seats

IP: Logged

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