does anybody think it would help to wrap the heater hoses with, for example water line insulation to help put out more heat in the heater?
Bryan59EC said:I have a suspicion that you heater core is clogged up something fierce.
If it were 95% clogged, you would still get a decent flow out of your return.
(as has been stated in other posts)
Meaning---if there were only 4 or 5 clear tubes in the core, you would still get a decent flow, but you would not get any decent heat transfer 'cause there would be no flow thru the other 35 tubes (i'm just grabbing numbers here )
Does that make any sense to you??
Same as your radiator----if only 4 or 5 tubes are working-----your motor won't for very long.
that makes sense to me, but is it possible that a new heater core was clogged because when i put it in new it never put any more heat out than it does now. is there any suggestions on how i go about flushing the heater core?
russlaferrera said:To flush the heater.Take the heater hoses off from the engine. Turn the heater control to Max. Put a garden hose in one of the hoses and see what comes our the other end.
Question: Are you sure the heater control is working properly? What about the thermostat? Are the heater hoses hot going in and out of the heater? I do not think the core is clogged....russ
Like I said.................poncho62 said:I think you need to be looking at other parts of the heater....Maybe, one of the heater doors is not closing, so you are getting cold air from oiutside, instead of warm air going over the heater core.
Yes, we still don't know what he is working on.... if it is old it might not even have blend air doors..... and he has a new heater core....poncho62 said:I think you need to be looking at other parts of the heater....Maybe, one of the heater doors is not closing, so you are getting cold air from oiutside, instead of warm air going over the heater core.
78 chevy truck and it has blend air doors and they are working.xntrik said:Yes, we still don't know what he is working on.... if it is old it might not even have blend air doors..... and he has a new heater core....
I'm outta here...... :thumbup:
thats what i figure is happening ive went and got another core from a blazer i know had a heater and boiled it out this evening. tomorrow im gonna try to put it in and see what happensBryan59EC said:Poncho, He claims that they are too hot to hold onto.
Runn, I just thought of something else----you stated that you had changed the heater core some time ago--
Might want to check that one side of the core is sealed from the other when installed. Perhaps you are getting flow around the core instead of thru the core.
(just something to think about)
And make sure both air doors are working correctly.
As for blower speed----I think there is a resistor set somwhere in the lead to the motor----not sure where it is as mine was relocated when I had AC installed--(about 20 yrs ago)