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#1 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,212
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Heater core died.
Flushed the cooling system. And... the heater core gave up the next day.
Searching thru threads not finding one with many pics for an A/C truck. Looks like a real pita Not to mention the 2nd heater core in as many weeks. Links would be appreciated. Ordered this for a replacement. APDI 9010121 Not really concerned if its aluminum or brass. Pics show it either way.
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" That didnt make it any newer " " Dont antique the equipment " |
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#2 |
Registered User
Join Date: Oct 2006
Location: Orland Park Il
Posts: 2,041
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Re: Heater core died.
Split open or just plugged? If plugged hit the outlet with the garden hose and push the slop out
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68 GMC C3500 Longhorn DRW 67 Chevy C10 LWB 90 Mustang Gt 90 Mustang Notchback |
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#3 | |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,212
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Re: Heater core died.
Quote:
Never really worked to well until the flush then worked better than ever til it split the bed. Ha-
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#4 | |
Registered User
Join Date: Aug 2018
Location: Bronx, NY
Posts: 215
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Re: Heater core died.
Quote:
And if you DO have to R&R it, the inner fender well pretty much has to be dropped out of the way. Don't forget to wear really good eye-protection. |
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#5 |
Registered User
Join Date: Oct 2013
Location: New Jersey
Posts: 1,302
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Re: Heater core died.
Even on a non AC truck it is a pain. Last time I did the job the inner fender and the hood hinge had to come off. I’ve never understood why a part lik this is made to be so difficult to replace. On my 05 Impala it was. $1300 job. I told people the was they build cars is to set the heater core in a jig and then construct the vehicle around it!
Paul
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"You know that little thing in your head that keeps you from saying things you shouldn't? Yeah well, I don't have one of those" 1969 Mercury Cougar Standard 4 speed 1969 Mercury Cougar XR7 convertible 1970 4WD Chevrolet Suburban 1997 4WD Chevrolet Silverado Extended Cab Short Bed (purchased new January 1997) |
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#6 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,212
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Re: Heater core died.
My 98 was super easy comparatively to this.
About 10 screws 2 heater hoses. The oem spring clamps where the worst part of it. Sounds like a fun job.
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" That didnt make it any newer " " Dont antique the equipment " |
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#7 |
Registered User
![]() Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
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Re: Heater core died.
Inner fenderwell, Black heater box, and repeat.
Take the tire off first of course. Easiest way I ever found. |
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#8 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,628
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Re: Heater core died.
Not much help, I know.... more than 20 years ago, pre-forum, I replaced the heater core in my A/C K20. It was quite quite a pita as I recall, but I did it and hope I never need to do it again. I'm just a general maintenance with basic hand tools in the carport guy, so it can be done by just about anyone with determination. But it's no fun.
FWIW, I have heard of problems with aluminum heater cores, and brass is preferred. No specific info though, just a memory of something I saw somewhere.
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#9 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
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Re: Heater core died.
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#10 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,212
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Re: Heater core died.
Thanks. That's more what I was looking for. Also now recalling this truck had the A/C added with all the factory stuff.
Really beginning to dread this particular project.
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" That didnt make it any newer " " Dont antique the equipment " |
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#11 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Heater core died.
I replaced a heater core and not long after I was doing something else under the hood and put pressure on a heater hose causing the poor solder joint in the new core to leak. Had to go through everything all over again to fix it. It was a Modine brass many years ago.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#12 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Heater core died.
Just FYI, all the replacements I found were GARBAGE compared to how heavy duty and strong the original Harrison unit I found in there was. I have a feeling I'm going to regret not just getting the original rebuilt! But I hung onto the core...
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#13 |
Go Pack Go!
Join Date: Nov 2005
Location: Green Bay
Posts: 2,669
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Re: Heater core died.
The one on my truck sprung a leak so I bypassed the heater because removing 50 year old rusted bolts didn't sound like a chore worth trying.
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#14 | |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,212
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Re: Heater core died.
Quote:
Sad part is it didnt really work til I flushed the system. Then it worked pretty decent til the water works started. Almost 4 hours, stupid old trucks. Ha-
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" That didnt make it any newer " " Dont antique the equipment " |
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#15 |
Registered User
Join Date: Oct 2006
Location: Orland Park Il
Posts: 2,041
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Re: Heater core died.
Bummer! Better off finding a good original as the aftermarket aren’t very good.
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68 GMC C3500 Longhorn DRW 67 Chevy C10 LWB 90 Mustang Gt 90 Mustang Notchback |
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#16 |
Junior Member
![]() Join Date: Nov 2018
Location: Kirkwood, PA
Posts: 98
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Re: Heater core died.
Advance auto parts sells a good brass heater core, same size as original. Costs around $35.
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#17 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,117
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Re: Heater core died.
Do you know if they stock the Deluxe heater core?
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 Last edited by HO455; 01-12-2019 at 11:57 AM. Reason: changed HD to Deluxe |
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#18 |
70+ ( Old Skool Club )
![]() Join Date: Nov 2003
Location: Saskatoon, Saskatchewan ,Canada
Posts: 9,119
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Re: Heater core died.
I'm going to have my heater core rebuilt. Its not that I'm having any problems with it but my original radiator seeps a bit and I'm going to get it rebuilt. I am figuring once the rad is done the weak link in the system will be the original core so I've actually decided i'm going to get the heater core done first as it'll be the tough one to R & R as my truck has Factory A/C.
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#19 |
Special Order
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Location: Mt Airy, MD
Posts: 85,859
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Re: Heater core died.
Usually with radiators and heater cores it's age that gets them. So, good thinking on that move.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#20 |
laying low
![]() Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,232
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Re: Heater core died.
My first old truck had a persistent radiator leak. I tried numerous times to solder it myself but I never could master the art of soldering. Anyway I thought a good cooling system flush might be good for the old truck. It was a '56 by the way. I didn't skimp on the flush. I bought a Dupont flush as it was the best on the shelf at the time. It's a 2 part deal. I followed directions and it cleaned it up real nice. Inside the rad tank it looked like new. Feeling good about it I refilled the system with new a/f and thought, job done. Thumbs up!
The next day the water pump went out. It was super clean inside but the flush had finished off the shaft seal in the pump. It just sped up the demise of the pump is all. One thing leads to another.. ![]()
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#21 |
Registered User
Join Date: May 2016
Location: Henderson NC
Posts: 975
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Re: Heater core died.
I replaced mine with a copper and brass one I found on line. I forget where I got it but it fit right and has worked great. There seems to be two different size cores, the wire hold downs won't fit if you get the wrong size.
Be careful not to break or lose the little clip on the cable that works the door. I found that plumbers putty makes the perfect sealer for the heater box. |
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