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

Cleaning C4 Radiator

Thread Tools
 
Search this Thread
 
Old 09-30-2017, 11:36 PM
  #1  
jweide
8th Gear
Thread Starter
 
jweide's Avatar
 
Member Since: Oct 2012
Location: Lindsborg KS
Posts: 8
Received 0 Likes on 0 Posts
Default Cleaning C4 Radiator

Greetings!:
I have a 1984 Corvette and recently discovered that the front of the radiator was packed and I mean packed with road material. Does anyone have any suggestions for cleaning the front. The radiator is enclosed which compounds the situation.

As always thanks in advance for your comments they have been excellent and extremely helpful.
Old 10-01-2017, 12:26 AM
  #2  
81c3
Le Mans Master
 
81c3's Avatar
 
Member Since: Dec 2005
Location: Where Woke Goes to Die
Posts: 8,194
Received 615 Likes on 431 Posts

Default

Remove the radiator. Its not hard to do. Then you can give it a proper coolant flush which it probably needs. This will also let you clean between the radiator and A/C condenser.
Old 10-01-2017, 02:25 AM
  #3  
gerardvg
Melting Slicks
 
gerardvg's Avatar
 
Member Since: Aug 2009
Location: Melbourne, Victoria, Australia
Posts: 3,453
Received 188 Likes on 169 Posts

Default

Originally Posted by jweide
Greetings!:
I have a 1984 Corvette and recently discovered that the front of the radiator was packed and I mean packed with road material. Does anyone have any suggestions for cleaning the front. The radiator is enclosed which compounds the situation.

As always thanks in advance for your comments they have been excellent and extremely helpful.
Hi

Once you have cleaned between the radiator and a/c condenser stop the free highway trash collection service, i put a mesh screen down past the front of the air filter down to lower air dam.
I no longer offer the free highway trash collection, has been great over the last 10 years. I recently fitted a double row all aluminium radiator and was surprised how clean the area was since fitting the fine mesh.

The following users liked this post:
LTDan96 (10-10-2017)
Old 10-01-2017, 09:34 AM
  #4  
billschroeder5842
Zen Vet Master Level VII

Support Corvetteforum!
 
billschroeder5842's Avatar
 
Member Since: Mar 2016
Location: Southlake, TX
Posts: 5,121
Received 1,140 Likes on 845 Posts
Default

Originally Posted by 81c3
Remove the radiator. Its not hard to do. Then you can give it a proper coolant flush which it probably needs. This will also let you clean between the radiator and A/C condenser.
Here is what I found when I took off the shroud of my 89 just after I picked it up. I also have a screen mesh on both my 89 and 91.
Attached Images  

Last edited by billschroeder5842; 10-01-2017 at 09:34 AM.
Old 10-10-2017, 06:26 PM
  #5  
LTDan96
Intermediate
 
LTDan96's Avatar
 
Member Since: Oct 2017
Posts: 31
Received 0 Likes on 0 Posts
Default

Originally Posted by gerardvg
Hi

Once you have cleaned between the radiator and a/c condenser stop the free highway trash collection service, i put a mesh screen down past the front of the air filter down to lower air dam.
I no longer offer the free highway trash collection, has been great over the last 10 years. I recently fitted a double row all aluminium radiator and was surprised how clean the area was since fitting the fine mesh.

I had the same! My car had collected practically a whole pine tree! I want to do that wire mesh mod. Have you posted about this project?
Old 10-11-2017, 05:39 AM
  #6  
gerardvg
Melting Slicks
 
gerardvg's Avatar
 
Member Since: Aug 2009
Location: Melbourne, Victoria, Australia
Posts: 3,453
Received 188 Likes on 169 Posts

Default

Originally Posted by LTDan96
I had the same! My car had collected practically a whole pine tree! I want to do that wire mesh mod. Have you posted about this project?
You can buy a air dam intake mesh kit on ebay or corvette central, however mesh grilles are readily available at parts shops.
I cut mine to size and shoved it down in front of the air cleaner and frame X brace, all the way down to the lower baffle in front of the booster fan.

It doesn't take long just measure the rough width and insert , remove trim and it will fit like a glove.

Or click the link below for a screen you can fit under the front bumper.

http://www.ebay.com/itm/84-91-CORVET...-/290401657970
The following users liked this post:
LTDan96 (10-11-2017)
Old 10-11-2017, 09:01 AM
  #7  
LTDan96
Intermediate
 
LTDan96's Avatar
 
Member Since: Oct 2017
Posts: 31
Received 0 Likes on 0 Posts
Default

Good deal! Seems like something the car should have had from the factory. I think I'll check the hardware store for an inexpensive fix. Thanks for the help!
Old 10-11-2017, 09:29 AM
  #8  
SJW
Le Mans Master
 
SJW's Avatar
 
Member Since: May 2005
Location: Central Maryland
Posts: 6,373
Received 1,389 Likes on 920 Posts

Default

Originally Posted by LTDan96
Good deal! Seems like something the car should have had from the factory. I think I'll check the hardware store for an inexpensive fix. Thanks for the help!
Definitely should have been there from the factory. Here's what I made from materials I got at Lowe's:




You have to get down very low to see it at all, but I squirted it with flat black from a rattle can before installing, and it pretty much disappears visually against the black background of the air dam and inlet opening when the car is sitting on the ground.

It's been on there for around ten years, and has been very effective at keeping all but the smallest bits of debris out of the cooling stack. The car still runs nice and cool all these years later.

Live well,

SJW

Last edited by SJW; 10-11-2017 at 09:30 AM.
The following users liked this post:
LTDan96 (10-11-2017)
Old 10-11-2017, 08:13 PM
  #9  
billschroeder5842
Zen Vet Master Level VII

Support Corvetteforum!
 
billschroeder5842's Avatar
 
Member Since: Mar 2016
Location: Southlake, TX
Posts: 5,121
Received 1,140 Likes on 845 Posts
Default

Here is mine on the '89. I also painted it black to fade on in...
Attached Images  
Old 10-11-2017, 08:44 PM
  #10  
LTDan96
Intermediate
 
LTDan96's Avatar
 
Member Since: Oct 2017
Posts: 31
Received 0 Likes on 0 Posts
Default

Originally Posted by billschroeder5842
Here is mine on the '89. I also painted it black to fade on in...
Nice! Looks great.
Old 10-11-2017, 09:51 PM
  #11  
corvette_realtor
Instructor
 
corvette_realtor's Avatar
 
Member Since: Sep 2016
Posts: 173
Received 18 Likes on 16 Posts
Default

Great idea! I haven't seen anything get sucked up into my car yet (knock on wood) but if I start seeing trouble this fall, I'll look into this. So you don't have to do anything to secure it other than propping it into place?
Old 10-11-2017, 09:57 PM
  #12  
LTDan96
Intermediate
 
LTDan96's Avatar
 
Member Since: Oct 2017
Posts: 31
Received 0 Likes on 0 Posts
Default

Originally Posted by corvette_realtor
Great idea! I haven't seen anything get sucked up into my car yet (knock on wood) but if I start seeing trouble this fall, I'll look into this. So you don't have to do anything to secure it other than propping it into place?
I zoomed in on the pic. He has it fastened in the middle and at all corners.
Old 10-11-2017, 11:42 PM
  #13  
SJW
Le Mans Master
 
SJW's Avatar
 
Member Since: May 2005
Location: Central Maryland
Posts: 6,373
Received 1,389 Likes on 920 Posts

Default

Originally Posted by corvette_realtor
Great idea! I haven't seen anything get sucked up into my car yet (knock on wood) but if I start seeing trouble this fall, I'll look into this. So you don't have to do anything to secure it other than propping it into place?
These cars are bottom-feeders, and they will suck an extraordinary amount of crap into the cooling stack. If you drive the car, debris will find its way in there. Count on it.

The screen I fabricated is attached at the top by way of two small tabs that are anchored under the fog lamp access panel screws. Here's a shot of one of them, taken during the test-fit process before I painted the screen black:



These tabs were included with the expanded-metal gutter guard material that I used, bought from Lowe's. They are the clips that were to be used to attach the mesh to the gutters on a house. I just re-shaped them to suit my needs, and drilled a hole in each for the screw. Here's a shot of the re-shaped and drilled tab, attached to the screen, also prior to paint:



The screen is attached at the bottom with a black zip-tie at each of the bottom corners. I drilled a 1/4" hole through the black plastic air dam -- not on its front face, but around the corner just inside of the mouth of the air intake, and fed the zip-ties through the screen and those two holes. Being black, the ties are nearly invisible, and they've held the thing in place for at least ten years now. If you zoom in on this photo, you can see the zip-ties in each lower corner:



Live well,

SJW
Old 10-12-2017, 12:15 AM
  #14  
corvette_realtor
Instructor
 
corvette_realtor's Avatar
 
Member Since: Sep 2016
Posts: 173
Received 18 Likes on 16 Posts
Default

Wow, great write-up, thanks for the details with pics.
Old 10-13-2017, 11:48 AM
  #15  
cv67
Team Owner
 
cv67's Avatar
 
Member Since: Oct 2004
Location: altered state
Posts: 81,242
Received 3,043 Likes on 2,602 Posts
St. Jude Donor '05

Default

blast out the fins from the backside with a water hose youll find all those will be packed solid, too.
Old 10-13-2017, 12:40 PM
  #16  
2LZ
Racer
 
2LZ's Avatar
 
Member Since: Jul 2017
Location: Volcano CA
Posts: 259
Received 38 Likes on 32 Posts
Default

I ordered one of these for my '96.
http://www.ebay.com/itm/91-96-CORVET...75.c100623.m-1
Don't waste your money. It doesn't fit from side to side and needs lots of tweaking. I'm going to take it as a "$49.00 lesson" and get some mesh from Lowes like others here.
In the meantime, I made one of these PVC vac attachments like another member here and it rocks.
Attached Images  
Old 10-13-2017, 01:27 PM
  #17  
LTDan96
Intermediate
 
LTDan96's Avatar
 
Member Since: Oct 2017
Posts: 31
Received 0 Likes on 0 Posts
Default

Originally Posted by 2LZ
I ordered one of these for my '96.
http://www.ebay.com/itm/91-96-CORVET...75.c100623.m-1
Don't waste your money. It doesn't fit from side to side and needs lots of tweaking. I'm going to take it as a "$49.00 lesson" and get some mesh from Lowes like others here.
In the meantime, I made one of these PVC vac attachments like another member here and it rocks.
Holy smokes! It's only $2 and some change at Lowe's. Not to say I haven't been taken by some jerk with some overpriced stuff.

Last edited by LTDan96; 10-13-2017 at 01:30 PM.

Get notified of new replies

To Cleaning C4 Radiator

Old 10-13-2017, 02:07 PM
  #18  
2LZ
Racer
 
2LZ's Avatar
 
Member Since: Jul 2017
Location: Volcano CA
Posts: 259
Received 38 Likes on 32 Posts
Default

Originally Posted by LTDan96
Holy smokes! It's only $2 and some change at Lowe's. Not to say I haven't been taken by some jerk with some overpriced stuff.
Isn't that the truth. We've all been torched from time to time. I guess I should have clarified though a "9.00 restocking fee lesson"...which is irritating enough. 9.00 is lost beer money.
The piece doesn't look anything like the pic when it's on the car and isn't remotely close to fitting properly.
I've been vacuuming the roads of Volcano for a few weeks now. I need to make a run to Lowes.
Old 10-15-2017, 08:46 AM
  #19  
Cjunkie
Melting Slicks
 
Cjunkie's Avatar
 
Member Since: Jun 2006
Location: Ashland, OH
Posts: 2,170
Received 172 Likes on 134 Posts

Default

Originally Posted by 2LZ
Isn't that the truth. We've all been torched from time to time. I guess I should have clarified though a "9.00 restocking fee lesson"...which is irritating enough. 9.00 is lost beer money.
The piece doesn't look anything like the pic when it's on the car and isn't remotely close to fitting properly.
I've been vacuuming the roads of Volcano for a few weeks now. I need to make a run to Lowes.
Beer is lost money. You drink $9 of beer it just comes out **** right? So basically you pissed away $9 either way. So don't let it get you down.
Most drunks are angry if they lose money in some places but have 'pissed' away thousands but are ok with that. Its all perspective.
Old 10-15-2017, 09:40 AM
  #20  
Dt86
Safety Car
 
Dt86's Avatar
 
Member Since: Jan 2014
Location: Poughkeepsie New York
Posts: 4,017
Received 482 Likes on 342 Posts
Default

With the leaves falling now, I am going to have to do this.


Quick Reply: Cleaning C4 Radiator



All times are GMT -4. The time now is 11:27 AM.