C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Replacing Radiator?

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Old Jun 26, 2006 | 04:41 PM
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Default Replacing Radiator?

I will be replacing my radiator this weekend. I've looked at the books and read several posts here and think I can do it ok. What difficulty level would you guys give this project? I have recently had some serious heart attacks and have some limitations but I can get some help. The one thing I'm, concerned about is how frustrating this might be. My heart cannot handle stress like it use too. I enjoy working on the car but I can be a little short tempered. A garage gave me a price of 200 bucks to install it. What would you do in my circumstance
Thanks a zillion for your wise advice.
David
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Old Jun 26, 2006 | 05:01 PM
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Originally Posted by newguy84
I will be replacing my radiator this weekend. I've looked at the books and read several posts here and think I can do it ok. What difficulty level would you guys give this project? I have recently had some serious heart attacks and have some limitations but I can get some help. The one thing I'm, concerned about is how frustrating this might be. My heart cannot handle stress like it use too. I enjoy working on the car but I can be a little short tempered. A garage gave me a price of 200 bucks to install it. What would you do in my circumstance
Thanks a zillion for your wise advice.
David
If you can drink as much beer as is necessary to generate the sort of patience you may need, and/or recruit some talented wrenching help, go for it. Otherwise, hire the job out. Your health is paramount.

Be well,

SJW
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Old Jun 26, 2006 | 05:31 PM
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The radiator can be taken out in less than 30 min and installed in about the same. The upper and lower hose come off, the overflow tank hose comes off, coolant level wire is disconnected, the tranny lines are disconnected, and a pan to catch fluid. the radiator shroud has around 8-10 7mm screws and the fan mounts come off. One of the easier jobs for a C4 IMO. I'm sure there is more to do than stated and someone else will help.
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Old Jun 26, 2006 | 05:56 PM
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I am not sure if the 84 is any different than later L98’s but it shouldn’t be too bad. I replaced mine last weekend and it took about 3 ½ hours which included going out and buying the radiator and doing a few honey do’s for the wife in between. I have had it out a few times before for cleaning though. Really one of the simpler radiator removals out there. The hardest part is slowly locating all the necessary bolts to remove. Take your time and step back if you have too, you’ll amazed how easy it was when you’re done.

The following link is from the tech tip on the L98 which is very useful.

https://www.corvetteforum.com/techti...D=53&TopicID=2
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Old Jun 26, 2006 | 07:04 PM
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Originally Posted by RRT vette
The radiator can be taken out in less than 30 min and installed in about the same. The upper and lower hose come off, the overflow tank hose comes off, coolant level wire is disconnected, the tranny lines are disconnected, and a pan to catch fluid. the radiator shroud has around 8-10 7mm screws and the fan mounts come off. One of the easier jobs for a C4 IMO. I'm sure there is more to do than stated and someone else will help.


The '84 has no coolant level wire so don't waste any time looking for that. Only the top two fan assembly bolts have to be removed. The fan can stay in place. Only the top of the radiator/fan shroud has to be removed. Once that is off, simply lift the radiator up and out. It is so easy, even *I* could do it. In fact I did, about 2-3 weeks ago. I'd blown a hose, so I figured it was a good time to flush and change the coolant. Since the cooling system was already drained, it seemed like a good time to clean out the leaves and carcasses from in front of the radiator, for the first time in 10+ years. Big disappointment. I found three (3), count em, leaves.

RACE ON!!!
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Old Jun 26, 2006 | 07:58 PM
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There was a good write up on the forum a couple of years ago. Gave easy to follow instructions on pulling a C4 rad. It was from Lars Grimsrud, I have removed and cleaned my rad and it's not a bad job.
The last email addressI had for Lars is: lars.grimsrud@imco.com

I also put in a 50/50 mix anti-freeze and added some Water Wetter and I'm running around 20 degrees cooler

Don
87' vert
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Old Jun 26, 2006 | 08:39 PM
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Originally Posted by jumpinjackflash
There was a good write up on the forum a couple of years ago. Gave easy to follow instructions on pulling a C4 rad. It was from Lars Grimsrud,
Don
87' vert
The link posted by 87SAM was the Tech Tip authored by Lars.

RACE ON!!!
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Old Jun 26, 2006 | 10:59 PM
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The worst part is getting to the 7mm bolts holding the radiator shroud in place down the sides...
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Old Jun 28, 2006 | 04:40 PM
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Default Thanks to All

Thank you all for your suggestions and comments about changing my radiator. Due to heart problems I cannot drink beer to settle my frustrations but my brother can......

He is a railroad mechanic for 35 years and said he'd help me out. I printed out the web link that someone supplied and it will be very helpful.

Thanks a zillion... You may have saved my life...LOL
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Old Jun 28, 2006 | 04:59 PM
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I'd rather watch someone else work any day of the week! I'm sure it will be fun
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Old Jul 9, 2006 | 09:01 AM
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Well...Best laid plans??? The little leak turned into a big one while I was working out of town shortly after this post. I ended up changing it myself, with the help of a son and a 15 dollar wallmart tool kit. Took about 4 hours and having read all your posts was pretty simple. A few days later I was running around our backroads and going way too fast. After a 125 mph run for a few miles when I slowed down the engine was knocking really bad. My brother said it sounds like bearings. We'll pull the pan and have a look in a week or so but I think its a goner. Might replace with a Jasper, what do you think. Thanks for your help,
Dave
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