Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

Gunked up radiator record...

Thread Tools
 
Search this Thread
 
Old Aug 18, 2010 | 10:18 PM
  #1  
devnull's Avatar
devnull
Thread Starter
Scientific Negotiator
Supporting Gold
20 Year Member
Loved
Community Favorite
Top Answer: 5
 
Joined: Jul 2005
Posts: 6,721
Likes: 2,028
From: USA
St. Jude Donor '07-'08-'10, '14
Default Gunked up radiator record...

I am a lazy S.O.B. and finally got around to cleaning out the radiator this weekend after the car just about melted. This is a common issue that plugs the radiator and chokes that already crappy fans, causing the temps to get crazy.

For those who don't think that cleaning the crap from your radiator wont make much difference, here is the proof.

Before (it would continue to get hotter until I'd shut it down at 250+ DEGREES coolant and > 245 degrees oil):



Pic of the offending junk. Seriously, THIS ALL CAME FROM THE RADIATOR!



and the happy cool car (in the stank Georgia heat too!!!). I have the fans set at 190 and a 160 stat in.



Reply
Old Aug 18, 2010 | 10:41 PM
  #2  
MNR's Avatar
MNR
Racer
 
Joined: Jun 2010
Posts: 416
Likes: 0
Default

Nice!
Thats what I am doing next time I have some free time.

BTW, how many miles do you have on your car?
Reply
Old Aug 18, 2010 | 10:49 PM
  #3  
devnull's Avatar
devnull
Thread Starter
Scientific Negotiator
Supporting Gold
20 Year Member
Loved
Community Favorite
Top Answer: 5
 
Joined: Jul 2005
Posts: 6,721
Likes: 2,028
From: USA
St. Jude Donor '07-'08-'10, '14
Default

Originally Posted by BurningRubberC5
Nice!
Thats what I am doing next time I have some free time.

BTW, how many miles do you have on your car?
Just over 65k now, all HARD!

I found the perfect tool too, you know that infomercial for the windshield cleaning wand? That thing works really well for getting in between the radiator and ac condenser! Keep in mind that the radiator is behind the condenser, and you will want to at least remove the intake bridge, shroud, etc and dislodge the radiator for a little wiggle room.

I had other things to do so I removed the entire unit, but you do not need to for this.

Reply
Old Aug 18, 2010 | 11:46 PM
  #4  
seamus2154's Avatar
seamus2154
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2008
Posts: 1,450
Likes: 140
From: Palm Beach Florida
Default

I used compressed air w/ a wand and got even more that that out at 17,000 mls. Couldn't believe it. I then put a protective screen across the bottom intake to reduce the big stuff. But the sand and dirt was unbelievable!
Reply
Old Aug 19, 2010 | 07:24 AM
  #5  
Vetteman Jack's Avatar
Vetteman Jack
Administrator
Supporting Lifetime
Veteran: Navy
St. Jude 20 Year Donor
25 Year Member
Veteran: Reserves
 
Joined: Mar 2001
Posts: 367,452
Likes: 24,618
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Default

No wonder it was running that hot - heck of a lot of debris you flushed out. I look up into the radiator area every time I wash the car and clean out as needed.
Reply
Old Aug 19, 2010 | 11:54 AM
  #6  
moserbe's Avatar
moserbe
Race Director
Supporting Lifetime
15 Year Member
 
Joined: Dec 2005
Posts: 11,664
Likes: 15
From: Wellsboro Pa
Default

Recently when I replaced my water pump, I blew out all the small stones from both the condensor and radiator. What a pile that I ended up with, unbelievable.
Reply
Old Aug 19, 2010 | 04:47 PM
  #7  
killain's Avatar
killain
Race Director
Supporting Lifetime Gold
Veteran: Navy
St. Jude 20 Year Donor
25 Year Member
Top Answer: 1
 
Joined: Aug 1999
Posts: 11,113
Likes: 669
From: SE Pennsylvania
St. Jude Donor '03 thru '26
Oldtimer
Default Changing temps ?

Hope you changed out your DexCool @ 50K MI or five year mark. Mine runs about ten degrees cooler with a DexCool flush and refill. And I'd insrtall one of those air intake grills to keep any future trash/ leaves out of the radiator area.

Last edited by killain; Aug 21, 2010 at 07:14 AM.
Reply
Old Aug 20, 2010 | 02:41 PM
  #8  
devnull's Avatar
devnull
Thread Starter
Scientific Negotiator
Supporting Gold
20 Year Member
Loved
Community Favorite
Top Answer: 5
 
Joined: Jul 2005
Posts: 6,721
Likes: 2,028
From: USA
St. Jude Donor '07-'08-'10, '14
Default

Originally Posted by killain
Hope you changed out your DexCool @ 50K MI or five year mark. Mine runs about ten degrees cooler with a DexCool flush and refill.
I usually change it every two years anyway, and did just now too
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-1

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-2

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-3

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-6

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-7

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-8

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-9

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
Old Aug 20, 2010 | 02:43 PM
  #9  
devnull's Avatar
devnull
Thread Starter
Scientific Negotiator
Supporting Gold
20 Year Member
Loved
Community Favorite
Top Answer: 5
 
Joined: Jul 2005
Posts: 6,721
Likes: 2,028
From: USA
St. Jude Donor '07-'08-'10, '14
Default

Originally Posted by seamus2154
I used compressed air w/ a wand and got even more that that out at 17,000 mls. Couldn't believe it. I then put a protective screen across the bottom intake to reduce the big stuff. But the sand and dirt was unbelievable!

I have got to get a wand too!
Reply
Old Aug 20, 2010 | 09:49 PM
  #10  
robsc501's Avatar
robsc501
Drifting
 
Joined: Apr 2007
Posts: 1,496
Likes: 1
From: LEBANON PA.
Default

Hi There,
Heres the perfect tool for rad. cleaning. Do a google: mtn9762
Tool is $ 13.73 & 13.24 for shipping. No logic there. I have this blow gun but have not used it.Waiting for cooler weather.lol
robsc501
Reply
Old Aug 20, 2010 | 11:34 PM
  #11  
devnull's Avatar
devnull
Thread Starter
Scientific Negotiator
Supporting Gold
20 Year Member
Loved
Community Favorite
Top Answer: 5
 
Joined: Jul 2005
Posts: 6,721
Likes: 2,028
From: USA
St. Jude Donor '07-'08-'10, '14
Default

Originally Posted by robsc501
Hi There,
Heres the perfect tool for rad. cleaning. Do a google: mtn9762
Tool is $ 13.73 & 13.24 for shipping. No logic there. I have this blow gun but have not used it.Waiting for cooler weather.lol
robsc501
PERFECT!!! Thanks bud!
Reply
Old Aug 20, 2010 | 11:41 PM
  #12  
Kale's Avatar
Kale
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
Default

I just cleaned mine tonight. To keep it from getting dirty again I stuffed a bunch of towels between the condenser and radiator. Should keep it nice and clean. :cheerS:
Reply
Old Aug 21, 2010 | 12:41 AM
  #13  
jdot's Avatar
jdot
Drifting
 
Joined: May 2010
Posts: 1,371
Likes: 1
From: Somerset Kentucky
Default

I have a high pressure sprayer. Is that too much psi to clean the radiator? Should I just take things apart and do it by hand?
Reply
Old Aug 21, 2010 | 01:06 AM
  #14  
itzza427's Avatar
itzza427
Le Mans Master
15 Year Member
 
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
Default

Originally Posted by jdot
I have a high pressure sprayer. Is that too much psi to clean the radiator? Should I just take things apart and do it by hand?
I want to hear this too!!
Reply
Old Aug 21, 2010 | 02:13 AM
  #15  
moserbe's Avatar
moserbe
Race Director
Supporting Lifetime
15 Year Member
 
Joined: Dec 2005
Posts: 11,664
Likes: 15
From: Wellsboro Pa
Default

Originally Posted by robsc501
Hi There,
Heres the perfect tool for rad. cleaning. Do a google: mtn9762
Tool is $ 13.73 & 13.24 for shipping. No logic there. I have this blow gun but have not used it.Waiting for cooler weather.lol
robsc501
Thanks, ordered mine tonight.
Reply
Old Aug 21, 2010 | 02:55 AM
  #16  
soggysailor's Avatar
soggysailor
Pro
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2005
Posts: 626
Likes: 0
From: Fresno CA
Default

Harbor Freight sells the 24" tool.......4.99
Reply
Old Aug 21, 2010 | 08:42 AM
  #17  
robsc501's Avatar
robsc501
Drifting
 
Joined: Apr 2007
Posts: 1,496
Likes: 1
From: LEBANON PA.
Default

Hi There,
I looked for the one at h/freight.I did not see it where the rest of the blow guns where.Others may want to save some money.Whats the item number? To the other poster. I think evil twin stated that 30 or 40 psi is sufficient.(do a forum search on radiator cleaning) I want to cut & fit a piece of cardboard to put in between the condenser & the radiator to catch all the dirt when blowing out the radiator.
I just remembered to use the control key & the letter n to open up a new screen at the same time.I looked at h/freight's 24" blow gun item # 35226. It is $4.99 however the tip is on a 45 degree angle & not a 90. When you heat aluminum it tends to crack instead of bending.
robsc501
Reply

Get notified of new replies

To Gunked up radiator record...

Old Aug 21, 2010 | 10:05 AM
  #18  
devnull's Avatar
devnull
Thread Starter
Scientific Negotiator
Supporting Gold
20 Year Member
Loved
Community Favorite
Top Answer: 5
 
Joined: Jul 2005
Posts: 6,721
Likes: 2,028
From: USA
St. Jude Donor '07-'08-'10, '14
Default

Originally Posted by Kale
I just cleaned mine tonight. To keep it from getting dirty again I stuffed a bunch of towels between the condenser and radiator. Should keep it nice and clean. :cheerS:


(didn't work for me)
Reply
Old Aug 21, 2010 | 10:19 AM
  #19  
DFOR's Avatar
DFOR
Pro
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: May 2008
Posts: 661
Likes: 2
From: New England
Default

I have a question (hopefully not stupid) about using compressed air. Does it push any of the debris farther in?
Reply
Old Aug 21, 2010 | 10:21 AM
  #20  
devnull's Avatar
devnull
Thread Starter
Scientific Negotiator
Supporting Gold
20 Year Member
Loved
Community Favorite
Top Answer: 5
 
Joined: Jul 2005
Posts: 6,721
Likes: 2,028
From: USA
St. Jude Donor '07-'08-'10, '14
Default

Originally Posted by DFOR
I have a question (hopefully not stupid) about using compressed air. Does it push any of the debris farther in?
Not if you go from the inside out. I removed the fans and am able to access it from the back side, pushing the debris back out the way it came in.
Reply



All times are GMT -4. The time now is 10:07 PM.

story-0
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-1
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-2
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-3
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE