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10-05-2024, 06:40 PM | #1 |
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Removal of heater box without removing the inner fender on a 67-72 C10?
I am going to change the heater core in my 1968 C10 and I am wondering if I can remove the heater core box without removing the inner fender or the hood hinge on that side?
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10-05-2024, 10:36 PM | #2 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
I've always had to pull 4 or 5 bolts from the back of the Fender Skirt to bend it out of the way.
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10-06-2024, 03:25 PM | #3 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
You don't have to remove the inner fender but you do have to remove all of the bolts aft of the wheel center line and loose the rest.
On most trucks you can remove the back bolts on the hinge and after loosening the front bolt raise the back of the hinge for clearance. There's also the hack method a PO used on my Burban. They cut the end of the heater box off, replaced the core and silicone it back together. I don't recommend using that method.
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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; 10-06-2024 at 03:26 PM. Reason: -2 grammar. |
10-06-2024, 03:49 PM | #4 | |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
Quote:
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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10-06-2024, 03:58 PM | #5 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
I paid a Radiator guy to solder my heater core end nozzles back on. They had gotten loose from wrestling the hoses off. He did a very neat job.
Then I was installing the heater core in the fiberglass housing. I used a power drill to shoot the screws on. I dropped one of the original screws -- couldn't find it -- so I got a 1'' drywall screw and shot that in. Put it all back together. And it leaked!? The drywall screw was sharp and had pierced the brass tank end. I had to start all over again. Luckily, I found another tank I 'd squirreled away in the depths of White Fang and forgotten.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
10-27-2024, 12:04 PM | #6 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
Awesome guys. I will start working on it today and I appreciate the tips! In looking at my inner fender bolts I dont think they have ever been removed before so it is probably going to be difficult taking them out.
It seems some of them toward the rear I will not be able to get some penetrating oil on the backside of the bolts. Maybe put some heat to them. |
10-27-2024, 03:46 PM | #7 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
On my 1969 truck the inner fender bolts were challenging and took a couple hours of work for each side, because the U-nuts were rusted severely, and most would spin. I was able to get to every U-nut and hold it with pliers, except the nut at the topmost part of the arch. For that bolt I loosened it with an air impact wrench on the bolt, then wrapped a rag around a hacksaw blade to hold the blade in my hand, and inserted the blade and cut the bolt head off. I installed all new U-nuts. It took patience, but I'm glad I can take the inner fenders off any time I want now, without much of a fuss. I have taken them off a couple times to work on A/C, heat, suspension, brakes, and steering.
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10-27-2024, 05:03 PM | #8 | |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
Quote:
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71 C-20 07 Magnum RT AWD |
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10-27-2024, 07:13 PM | #9 | |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
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Don't mess with that -- Come on down to Honest Happy Hal's Chevrolet and trade that beast in on a shiny, new Squarebody!
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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10-27-2024, 09:17 PM | #10 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
The key to getting bolts with clip nuts off is loosen just a little, tighten, repeat. Otherwise the rust jams the threads and the nuts break and spin.
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10-28-2024, 11:59 AM | #11 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
Funny...GM built us a quality product, but two improvements mentioned. A door and seal on the case would have been great, and the phosphate process for the hardware along the wells left lots to be desired. They don't stand a chance under anything beyond clean and dry.
In topic area, that lower hood hinge bolt on the RH fender is a misery. I have all kinds of 9/16", but it's still a PITA with the inner fender assembled.
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Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
10-28-2024, 06:01 PM | #12 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
I visited a friend yesterday that cut a hole in his surburban floor to get at the in tank fuel pump. Same thing with our heater cores. Ya let’s not make anything easy for our customers.
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10-28-2024, 08:28 PM | #13 |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
I was able to access the bolt by using a 1/4 drive extension with a socket at the end. When reassembling I cut a hole in the fender liner. If it's not a points-winning show truck, it doesn't matter to me.
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10-29-2024, 02:30 PM | #14 | |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
Quote:
As with anything, things could have been improved upon. Paint and steel quality could have been better, since the single biggest issue with these vehicles is body rot. Back then, the general publics expectations on vehicle life was not as demanding as it is today. Typically 80k miles and 7 years, they hit the junkyards, especially in the rust belt. My Blazer fell into this. At 54k miles and 8 years, it was retired and sat for 9 years until it was gifted to me.
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1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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10-29-2024, 04:34 PM | #15 | |
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Re: Removal of heater box without removing the inner fender on a 67-72 C10?
Quote:
A plunge cut with a cutting blade on an angle grinder, and its shower of sparks, into thin sheetmetal without hitting an active fuel tank is just too chancy. I'm Chicken and I know it.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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