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pontiac_wolf · 10-29-2009, 07:18 PM

So far I've removed the heater assembly from under the dash. There is no way that the core comes out that way. Then I removed the "triangle" part under the hood. I don't see any way to get the core out that way.

Now I was told to remove the inner fender. Before I tear into it again, could someone let me know for sure. Also dose anyone have a diagram? The 1965 Pontiac service manual states that it ie taken out from under the dash. Which is wrong on my car.

thanks!

65WJ · 10-29-2009, 07:39 PM

from under the dash. Remove the heater control cable and vacuume hoses. Take off the 4 nuts from the air box. (inside the engine compartment attached at the fire wall) Remove the heater box from under the dash. Heater core is attached to the heater box.
section 12 of the 65 service manual.
patrick

pontiac_wolf · 10-29-2009, 09:09 PM

Quote:

Originally Posted by 65WJ

from under the dash. Remove the heater control cable and vacuume hoses. Take off the 4 nuts from the air box. (inside the engine compartment attached at the fire wall) Remove the heater box from under the dash. Heater core is attached to the heater box.
section 12 of the 65 service manual.
patrick

I have removed the heater box from under the dash completely. There is a hole in the firewall to small for the core to fit through. Under the hood. I removed all , but the two lower bolts of the heater/ A/C box and it dosen't look like that there is anyway to remove it from here eiather

Please clearify???
Thanks

mike nixon · 10-29-2009, 09:19 PM

YOu have to take the inside box out of the car to remove the core.

Mike

pontiac_wolf · 10-29-2009, 09:23 PM

Quote:

Originally Posted by mike nixon

YOu have to take the inside box out of the car to remove the core.

Mike

I did and there is no way. There is a small hole in the firewall. There is no way that the core will fit. There is got to be another way??

mike nixon · 10-29-2009, 09:33 PM

I did this on my 65 Prix, Same inner box, THe inner box comes out and you disassemble it and remove the core. I robbed a Cat box for parts to repair mine.

The Core does not come out thru the firewall.

The procedure is explained in the 65 Service manual.

I'd have to dig the parts box out to tell you exactly how to do it. If I remember correctly there's an aluminum plate that unbolts.

Also the core listed thru thru most parts stores will be too small by about 1/4" it's actually an A body core. I matched one up thru a Modine book that was correct.

Mike

65WJ · 10-29-2009, 10:08 PM

Here are pictures of what needs to come out from under the dash.
This is out of my 65 catalina.
Pictures always help explain a little better.

Mike I bought the core for Bonnie from classic air in Texas and the fit was almost perfect. I needed to increase the gap between the 2 hose outlets just a bit.

patrick

pontiac_wolf · 10-29-2009, 11:03 PM

Quote:

Originally Posted by 65WJ

Here are pictures of what needs to come out from under the dash.
This is out of my 65 catalina.
Pictures always help explain a little better.

Mike I bought the core for Bonnie from classic air in Texas and the fit was almost perfect. I needed to increase the gap between the 2 hose outlets just a bit.

patrick

According to the pics. Your core is located inside the heater assem. When I took my heater assem. out I can see a HOLE IN THE FIREWALL AND THROUGH THE I CAN SEE THE CORE. THIS MEANS THAT IT IS NOT ACCESSED FROM INSIDE THE CAR. AROUND THE HOLE IN THE FIRE WALL I CAN SEE 3 TO 4 FEET ON EITHER SIDE AND THERE ARE NO BOLTS THAT WOULD REMOVE AN ACCESS PANEL.

I will try to take a few pics tomorrow. We are getting crappy weather and I have to work on it out side

Thanks for all the replys. I am pretty sure it is accessed from under the hood

mike nixon · 10-29-2009, 11:23 PM

No you need to remove the core from the box while it's on the bench. That hole is nothing but a place for air to pass thru.

Change the core on the bench and then reinstall the box asm
there's a strap that retains it to the box, 2 1/4" bolts hold in in the box

mike nixon · 10-29-2009, 11:24 PM

Bring it up and I'll change the core for you,Not a big deal

Scott M · 10-30-2009, 12:33 AM

Quote:

Originally Posted by pontiac_wolf

I am pretty sure it is accessed from under the hood

I see that you have a service manual already.

Your problem is that you have no common sense.

Take it to the gas station down on the corner.

coach101 · 10-30-2009, 04:26 AM

Is it possible that its different because its an A/C car.

65WJ · 07:14 AM

A/C cars have a metal plate that bolts over the heater core. You have to remove the plate to have access to the heater core. AFTER you remove the heater box from under the dash.

patrick

Scott M · 10-30-2009, 10:02 AM

Simple really: keep unbolting stuff until you've reached the heater core.

Reverse to reassemble.

pontiac_wolf · 10-30-2009, 05:45 PM

Quote:

Originally Posted by Scott M

I see that you have a service manual already.

Your problem is that you have no common sense.

Take it to the gas station down on the corner.

I was looking for a little help. Not to be made fun of you jerk. I guess all "car guys" are not as helpful as people say.

65WJ · 10-30-2009, 06:11 PM

Pontiac-wolf.
Scott is what he is.
Ignore him. Mike has warned him to stfu or he is going back to the clubhouse.

Did the picture of the AC box help? Notice the metal plate. Under that metal plate is where the heater core is located.

patrick

Deadhead · 10-31-2009, 08:31 AM

Wolf,

The only thing that should come through the firewall into the engine Compt. are the ends that the heater hoses attach to. Like the Pics show, the core is contained inside the fiberglass cabinet with all the vacuum motors etc. on it. Once that is removed you disassemble & remove core from there. All that is under the hood is A/C components.

Don't get frustrated with it we have all been there. There is no better source of help. We have torn more Pontiac stuff apart than anyone else on the web. We have even put some of it back successfully.

justaguy · 10-31-2009, 03:41 PM

I think the confusion that is happening here is that he sees a heater core looking think through the firewall. What you are seeing I believe is the A/C core. This is separate from the heater core. The heater core would be inside the box you removed from the car. IIRC the A/C core is under the hood in the big box...therefore what you see through the firewall.

Hope this helps.

On a side note this IS a great site for info. Just listen carefully and you will always get one or two smart remarks...just take it with a grain of salt. Just my 2 cents though.

bradkline · 10-31-2009, 10:55 PM

I think Justaguy is correct. I seem to remember when I replaced mine I could see the evaporator core through one of openings. In fact mine was fairly clogged with leaves and other debris so you'll want to make sure all that stuff is removed. I think you do remove the evaporator core on the engine side of the firewall.

I think it's important to remember that we all go through learning curves so let's not beat up on someone who's trying to learn.

Hope this information helps get you through the process.

Brad Kline....

pontiac_wolf · 11-01-2009, 01:09 AM

Quote:

Originally Posted by justaguy

I think the confusion that is happening here is that he sees a heater core looking think through the firewall. What you are seeing I believe is the A/C core. This is separate from the heater core. The heater core would be inside the box you removed from the car. IIRC the A/C core is under the hood in the big box...therefore what you see through the firewall.

Hope this helps.

On a side note this IS a great site for info. Just listen carefully and you will always get one or two smart remarks...just take it with a grain of salt. Just my 2 cents though.

That very well cold be I will check tommorrow (Sunday) Thanks!!!!!!!

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