|
|
|
|
| Author |
|
|
Registered
Join Date: Nov 2000
Location: kcmo
Posts: 1,069
|
Rust eater
I've been wanting to ask this question for a while now. I heard somewhere not long ago that their was a mix that could be made up to eat rust in cylinders to free up pistons.It was equal parts of WD40 Coke and something else that I can't remember. Has anyone ever heard of it?
|
||
02-14-2013, 03:53 PM
|
|
|
Registered
|
Old...very old trick was to use just Coke.
Fill cylinder...let sit either for a few hours...or overnight for really stuck pistons...and then hammer down on the piston with the handle of a hammer. This was common for inline 6's and 8's. Coke will erode steel...so use is subjective...how much vs how long....experience is king. It works...but on V8's and flat 4's and 6's you would have to rotate the engine into a piston/vertical position. It's extreme...but in the long run...if you are considering it...it probably means you're going to toss the cylinders anyway. Bob
__________________
Bob Hutson |
||
|
02-14-2013, 04:51 PM
|
|
|
Registered
Join Date: Nov 2000
Location: kcmo
Posts: 1,069
|
Well I hope I don't have to toss the cylinder. It on on old 66 cycle I have.
|
||
|
02-14-2013, 06:07 PM
|
|
|
Northern Motorhead
|
I know that a mix of acetone and transmission fluid is a good penetrant ... and it won't eat your engine !
Cheers ! Phil
__________________
Cheers Phil 89 Coupe,Black,95 3.6 engine and the list goes on ... 1983 944 SP2 race car PCA #96 |
||
|
02-14-2013, 07:13 PM
|
|
|
Registered
Join Date: Jan 2011
Posts: 75
|
I wonder if differential heating of the cylinder vs. the piston with the same hammer handle persuasion would be a better n-1th resort?
|
||
|
02-14-2013, 07:49 PM
|
|
|
Registered
Join Date: Mar 2008
Location: Tulsa, Oklahoma
Posts: 1,079
|
Just bought some Metal Rescue. Seemed to work well on rusted nuts and bolts.
__________________
1983 Porsche 911SC - Arrow Blue lightweight '74 Carrera look http://forums.pelicanparts.com/porsche-911-technical-forum/498568-overdue-intro-sc-hotrod-project.html |
||
|
02-15-2013, 04:05 AM
|
|
|
|
Registered
Join Date: Jun 2006
Posts: 69
|
Rust never sleeps-Neil Young
|
||
|
02-15-2013, 09:04 AM
|
|
|
Registered
Join Date: Apr 2005
Location: outta here
Posts: 53,186
|
Quote:
 Quote:
JR |
||
|
02-15-2013, 09:14 AM
|
|
|
Registered
Join Date: Nov 2000
Location: kcmo
Posts: 1,069
|
I think the would also help. I saw Neal in concert once. My seat was rusted.
|
||
|
02-15-2013, 09:40 AM
|
|
|
Registered
Join Date: Jun 2003
Location: Fresno, CA
Posts: 7,769
|
I purchased a car that was in storage for 12 years. My mechanic first added about 1/4 cup of automatic trans fluid to each cylinder and let sit for a couple of days before turning the engine. He said that this would free up rusted rings.
Not sure of your situation and how bad the rust but this is a common method as ATF is a great penetrating oil. Vern |
||
|
02-15-2013, 09:48 AM
|
|
|
Registered
Join Date: Jun 2006
Posts: 69
|
The Harley shop on Truman road carries something that will work. Several years ago I inquired about a product they carry for something I was working on. The name escapes me but it worked well on the Jeep I think.
|
||
|
02-15-2013, 09:52 AM
|
|
|
Registered
|
It's not so much the Coca-Cola as it is the phosphoric acid in the Coke at attacks rust. Phosphoric acid is commonly used to chemically remove rust. It's not so great on machined parts.
+1 on ATF w/ acetone, Marvel Mystery Oil, PB Blaster and the like. |
||
|
02-15-2013, 07:57 PM
|
|
|
Registered
Join Date: Oct 2008
Location: Kailua, HI.
Posts: 158
|
If you have a couple days, Gibbs Penetrant might work.
You can get more info at All Purpose Lubricant & Penetrating Oil from Get Gibbs. |
||
|
02-18-2013, 06:09 PM
|
|
Harley
