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

Radiator cap won't budge, any ideas?

Thread Tools
 
Search this Thread
 
Old May 5, 2002 | 04:25 PM
  #1  
QuikKev's Avatar
QuikKev
Thread Starter
8th Gear
 
Joined: Apr 2002
Posts: 8
Likes: 0
From: Pleasanton CA
Default Radiator cap won't budge, any ideas?

My 86 needs a water pump, was just out in the garage and about to drain the coolant when I noticed the radiator cap will not come off :cuss . it will turn about 1 inch and thats it. I tried spraying some pb blaster on it and tapping lightly with a hammer, but no dice...please help, I don't want to break the radiator neck in the process.
Reply
Old May 5, 2002 | 04:33 PM
  #2  
Caboboy's Avatar
Caboboy
Le Mans Master
20 Year Member
Veteran: Navy
St. Jude 20 Year Donor
All Eyes On Me
 
Joined: Mar 2002
Posts: 5,889
Likes: 2
From: Castro Valley Calif.
St. Jude Donor '03 thru '26
Default Re: Radiator cap won't budge, any ideas? (QuikKev)

hey kev, are you sure you're pushing down hard enuff to clear the stops?
Reply
Old May 5, 2002 | 04:37 PM
  #3  
Alchemist's Avatar
Alchemist
Race Director
15 Year Member
 
Joined: Mar 1999
Posts: 18,226
Likes: 0
From: I live in my own little world
NC Events Coordinator
Default Re: Radiator cap won't budge, any ideas? (Caboboy)

hey kev, are you sure you're pushing down hard enuff to clear the stops?
Sometimes it takes a bit of muscle...
Reply
Old May 5, 2002 | 10:33 PM
  #4  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default Re: Radiator cap won't budge, any ideas? (QuikKev)

spray some WD40 or the like on the underside of the radiator cap... that might help it loosen up.
Reply
Old May 5, 2002 | 11:03 PM
  #5  
Kizmo's Avatar
Kizmo
Pro
 
Joined: Apr 2002
Posts: 605
Likes: 0
From: Outer Banks NC FIRST IN FLIGHT
Default Re: Radiator cap won't budge, any ideas? (bogus)

You really have to push down and turn left. Use a rag or gloves so you don't tear your hand up. Mine was a b*&$h! :boxing

Hope you get it off. :yesnod:

Kizmo :seeya
Reply
Old May 6, 2002 | 02:58 AM
  #6  
Frizlefrak's Avatar
Frizlefrak
Race Director
20 Year Member
 
Joined: Dec 2000
Posts: 17,551
Likes: 26
From: El Paso Texas
Default Re: Radiator cap won't budge, any ideas? (QuikKev)

As everyone else says, you gotta bear down on it to get it to turn. If all else fails, the radiators are simple to remove.....and since you are replacing one component of your cooling system, it wouldn't be a bad idea to take the whole thing down to a radiator shop and have it flushed and tell your radiator man the cap is fused to the rad. He will be able to get it off without destroying the neck...and you will get a clean rad to boot. Don't forget to clean off all the bugs and debris from the front.
Reply
Old May 6, 2002 | 02:22 PM
  #7  
QuikKev's Avatar
QuikKev
Thread Starter
8th Gear
 
Joined: Apr 2002
Posts: 8
Likes: 0
From: Pleasanton CA
Default Re: Radiator cap won't budge, any ideas? (Frizlefrak)

Thanks guys, sprayed some more solvent on it and let it sit...came back later and with the help of a pair of channel locks it finally came off :chevy
Reply

Get notified of new replies

To Radiator cap won't budge, any ideas?





All times are GMT -4. The time now is 07:33 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE