Author Topic: How replacing the Radiator Core Support  (Read 2346 times)

Offline ChrisD

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How replacing the Radiator Core Support
« on: July 23, 2020, 12:31:11 AM »
Hi,
my Radiator Core Support has much rust, so i have to replace it.
I‘ve already searched for a video or any other information, what is to do, to get it replaced.
Here i only found this: http://forum.73-87chevytrucks.com/smforum/index.php?PHPSESSID=a63c8ee2cd7ec43acb97b976bbe0b068&topic=29462.0

Can i replace it without removing much other parts, or must i remove also the fender, hood,.....?
Can you give me a short instruction, what is to do,
(For example, first bumper, 2nd hood, 3rd inner fender, ....)
or a link or a document where i can read it?
Perhaps, there‘s a trick to make it easyer.

I ask, because this is the place where i can do it: https://www.directupload.net/file/d/5889/yi2i49sx_jpg.htm
I can work outside for longer than a few hours, because the place in front of the garage is public.
So if its a bigger thing, i have to look for another place, i have to organize the transport....

Regards
Chris
« Last Edit: July 23, 2020, 01:10:36 AM by ChrisD »
1978 Chevy C10 short bed with 250i6 and manual 3speed Saginaw
German us-car/truck newbie

Offline JohnnyPopper

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Re: How replacing the Radiator Core Support
« Reply #1 on: July 23, 2020, 08:41:01 AM »
Hey Chris,

Is it really so bad that it has to be replaced? Hard to imagine unless you have severe rust, which if true, means you must have the same problem elsewhere.

I have the front of my '80 tore down, I think you can remove it without taking off the hood, fenders, and inner fenders, even the bumper can stay on.

Keep us posted!

JP
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline ChrisD

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Re: How replacing the Radiator Core Support
« Reply #2 on: July 23, 2020, 02:40:05 PM »
Hi JP,

the problem is at the point where the Mounts are installed.
At the passenger site, it‘s really bad.
https://www.directupload.net/file/d/5889/6eh5q2jf_jpg.htm

It minimum has to be repaired, and then it‘s better to remove it, so i can move it for cut and weld

Regards
Chris
1978 Chevy C10 short bed with 250i6 and manual 3speed Saginaw
German us-car/truck newbie

Offline JohnnyPopper

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Re: How replacing the Radiator Core Support
« Reply #3 on: July 23, 2020, 04:14:23 PM »
pic not very helpful, but I understand know, repair core support, not replace.  8)
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline Mike81K10

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Re: How replacing the Radiator Core Support
« Reply #4 on: July 23, 2020, 09:20:31 PM »
JP is right on! Do needed repairs!
"Tell me and I forget. Teach me and I remember. Involve me and I learn." -Benjamin Franklin

Offline ChrisD

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Re: How replacing the Radiator Core Support
« Reply #5 on: July 24, 2020, 09:01:27 AM »
Hi,

thank you for your replies!
Okay then, i‘ll try to repair the part where the rust has left a hole.

If it’s done, i‘ll post it. But it will take some time.
Next week i bringt it to a workshop to replace a seal which i can‘t do  my own. I‘ve no chance to lift the engine...

Regards
Chris

1978 Chevy C10 short bed with 250i6 and manual 3speed Saginaw
German us-car/truck newbie

Offline ehjorten

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Re: How replacing the Radiator Core Support
« Reply #6 on: July 24, 2020, 09:43:36 AM »
I replaced my Core Support in my V3500 with little effort. I did have the bumper removed and the hood removed, but I don't see why you would need to remove the hood. Having the bumper out of the way might make it a little easier, but I don't know that it was necessary. Everything else remained in place: Fenders, Inner Fenders, etc. It wasn't difficult.
-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline ehjorten

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Re: How replacing the Radiator Core Support
« Reply #7 on: July 24, 2020, 09:46:39 AM »
Actually, I take it back...the old bumper was still on when I did it!

Here is a picture pretty much right after I installed it:
-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline zieg85

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Re: How replacing the Radiator Core Support
« Reply #8 on: July 24, 2020, 12:44:29 PM »
I had the bumper off on my 86
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline ChrisD

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Re: How replacing the Radiator Core Support
« Reply #9 on: July 26, 2020, 01:24:42 AM »
Hi,
thank you very much, also for the pictures!
Then it‘s not a big problem for me, i remove it weld it and put it back with the car in the small garage.

Regards
Chris
1978 Chevy C10 short bed with 250i6 and manual 3speed Saginaw
German us-car/truck newbie