FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

2/24/2015 10:43 AM  #1


Stop Leak? (Ford but not Mustang related)

Any one know of a tried and true stop leak that does not cause other issues?  The aluminum radiator in my E150 is starting to weep where the top tank attaches to the alumimum core.  It is not severe but enough to smell it when you walk past the front of the van.  The sad part is that the radiator was recently just removed during a head gasket job. 

I would sure like to be able to get a bit more time out of it while I recover from the cost of the head gasket repair.  As it is, I have loosened the radiator cap so the cooling system will not pressurize.  What I do not want to do is to use something that could cause other problems.

 

2/24/2015 11:21 AM  #2


Re: Stop Leak? (Ford but not Mustang related)

DON"T DO ANY STOP LEAK PRDUCTS!!! Gimmick fix in ah bottle products WILL, do more harm then good in the long run. Whats the year, make, engine, and model of your truck? I'll see if I can find ah rad on line thats in your price range.


It's hard to type "funny"
 

2/24/2015 11:26 AM  #3


Re: Stop Leak? (Ford but not Mustang related)

Derek wrote:

DON"T DO ANY STOP LEAK PRDUCTS!!! Gimmick fix in ah bottle products WILL, do more harm then good in the long run. Whats the year, make, engine, and model of your truck? I'll see if I can find ah rad on line thats in your price range.

It's a 1997 E150 4.6L w/o a/c.
 

     Thread Starter
 

2/24/2015 11:42 AM  #4


Re: Stop Leak? (Ford but not Mustang related)

I will share 2 Stop Leak episodes.  Many years ago a rock launched by a vehicle I was following nicked a tube in my radiator.  It was late and I was a couple hundred miles from home.  I was able to pinch the tube above & below the hole in the tube, but it still leaked more than I wanted to try to drive with.  I added stop leak, and slowed the leak, which allowed me to get home.  I was happy that the product helped in my emergency position.

Last summer my old suburban started to lose coolant, and it turned out to be a slow intake gasket leak.  I was on the fence about keeping the truck and the mechanic that fixes the corproate fleet I manage said to throw in some stop leak.  I did.  When I decided to keep the truck I replaced the intake gaskets, as they still leaked.  Last fall when the weather turned cooler, the truck had inadequate heat.  Yup, my heater core was where the stop leak had settled.  I will only ever use that stuff in an emergency, and then cross my fingers against collateral damage.

If you need a radiator, park it until you can buy a radiator. Drive your Mustang

 

2/24/2015 12:30 PM  #5


Re: Stop Leak? (Ford but not Mustang related)

TimC wrote:

....If you need a radiator, park it until you can buy a radiator. Drive your Mustang

Thanks Tim!  I will see if I can find space in the Mustang to carry my 2000 lbs of service parts, tools and related supplies. 
 

     Thread Starter
 

2/24/2015 1:37 PM  #6


Re: Stop Leak? (Ford but not Mustang related)

We used to sell some 2 part epoxy stuff at the auto supply I worked at a long time ago. Basically 2 strips you kneeded together and then applied to the outside of the radiator. Maybe that would get you by without putting stuff in the cooling system that could cause other issues down the road. Wish I could remember the name.

 

2/24/2015 2:14 PM  #7


Re: Stop Leak? (Ford but not Mustang related)

.
if you can find the leak, drain the rad, flush it with water, let it dry, wire brush the area then clean with alcolhol then apply jb quick weld.

if you remove it you can also use low temp aluminum rod and a propane torch on it.

you can use the product below . . it is astm certified.

http://barsleaks.com/product/liquid-aluminum-cooling-system-stop-leak/

after you properly fix your rad, flush this out of your system.

 

 

2/24/2015 2:19 PM  #8


Re: Stop Leak? (Ford but not Mustang related)

I have one vehicle that I chose to use some stop leak in. It is a full size conversion van and is quite a pain to tear apart. So several years ago and 50000 miles ago I dumped in a tube of that silver powered stuff (They used to call it Silver Stallion). The leak at the front of the drivers side head quit leaking and has not let a drop since. Heater still works good (regularly more than 10 below here this winter). So I keep a tube of it around.

 

2/24/2015 3:07 PM  #9


Re: Stop Leak? (Ford but not Mustang related)

I would replace the radiator, or if it is all aluminum it could be repaired. Most radiators now days have plastic tanks and aluminum cores while still can be repaired are better off being replaced. I wouldn't use that stop leak stuff unless it was an absolute emergency. As someone else posted it can plug up heater cores and the radiator that it was meant to limp along. I know this is a catch 22 situation but loosening the radiator cap will lower the boiling point of the coolant, potentially creating an overheat problem, but on the other hand having the system under pressure will make the leak run out. It's why i would recommend a replacement.

 

2/24/2015 3:12 PM  #10


Re: Stop Leak? (Ford but not Mustang related)


It's hard to type "funny"
 

2/24/2015 3:12 PM  #11


Re: Stop Leak? (Ford but not Mustang related)

.
neither the bardahl i posted, nor silver stallion, nor aluma seal etc will plug a single thing in your engine.

also, bardahl could not get a certification if it plugged anything in a system.
 

Last edited by barnett468 (2/24/2015 3:13 PM)

 

2/24/2015 3:19 PM  #12


Re: Stop Leak? (Ford but not Mustang related)

Take it to your local radiator shop and have it repaired.  It will be cheaper than you think.


65 mustang coupe, 351W, C6-  2800 stall, B&M blower, 9inch- trac-loc 3.70 gears
 

2/24/2015 3:28 PM  #13


Re: Stop Leak? (Ford but not Mustang related)

Thanks Derek!  A good deal with the shipping included.  Do you need a special tool to release the transmission cooling lines>
 

     Thread Starter
 

2/24/2015 3:49 PM  #14


Re: Stop Leak? (Ford but not Mustang related)

boomyal wrote:

Thanks Derek!  A good deal with the shipping included.  Do you need a special tool to release the transmission cooling lines>
 

Don't expect a $95.00 chinese rad to properly cool your engine.
.
 
 

 

2/24/2015 4:29 PM  #15


Re: Stop Leak? (Ford but not Mustang related)

Many years ago when I first hired in at Ford Kentucky Truck Plant where we used to make F600 up to large Semi's it was common practice to put Stop Leak in radiators that had a small leak somewhere in the cooling system.  We called them "Dog Turds" , they were about the diameter of a 50 cent piece and about 1 inch thick.  Don't know how they would work on aluminum butt(TS) they worked great otherwise, so maybe they are not as bad as some people think. Ford had no problem using them at our plant and probably many more.  I still have a bag of them at home just in case I ever get a leak.


66 Vert.  4.6 DOHC, 4R70 Auto, Heidt's M2 frontend
 

2/24/2015 4:35 PM  #16


Re: Stop Leak? (Ford but not Mustang related)

MAW wrote:

Many years ago when I first hired in at Ford Kentucky Truck Plant where we used to make F600 up to large Semi's it was common practice to put Stop Leak in radiators that had a small leak somewhere in the cooling system.  We called them "Dog Turds" , they were about the diameter of a 50 cent piece and about 1 inch thick.  Don't know how they would work on aluminum butt(TS) they worked great otherwise, so maybe they are not as bad as some people think. Ford had no problem using them at our plant and probably many more.  I still have a bag of them at home just in case I ever get a leak.

you can still get something similar . . it is the same stuff that the old liguid bardahl had in it that looked like bran cereal, lol.

.........................

 

 

2/24/2015 5:43 PM  #17


Re: Stop Leak? (Ford but not Mustang related)

barnett468 wrote:

MAW wrote:

Many years ago when I first hired in at Ford Kentucky Truck Plant where we used to make F600 up to large Semi's it was common practice to put Stop Leak in radiators that had a small leak somewhere in the cooling system.  We called them "Dog Turds" , they were about the diameter of a 50 cent piece and about 1 inch thick.  Don't know how they would work on aluminum butt(TS) they worked great otherwise, so maybe they are not as bad as some people think. Ford had no problem using them at our plant and probably many more.  I still have a bag of them at home just in case I ever get a leak.

you can still get something similar . . it is the same stuff that the old liguid bardahl had in it that looked like bran cereal, lol.

.........................

 

That sure looks like the "Dog Turds" that I have.
 


66 Vert.  4.6 DOHC, 4R70 Auto, Heidt's M2 frontend
 

2/24/2015 6:20 PM  #18


Re: Stop Leak? (Ford but not Mustang related)

Brents65 wrote:

Take it to your local radiator shop and have it repaired. It will be cheaper than you think.

As far as I know, shops do not repair aluminum radiators, especially when the leak is between the metal and the plastic tank.
 

     Thread Starter
 

2/24/2015 6:33 PM  #19


Re: Stop Leak? (Ford but not Mustang related)

boomyal wrote:

Brents65 wrote:

Take it to your local radiator shop and have it repaired. It will be cheaper than you think.

As far as I know, shops do not repair aluminum radiators, especially when the leak is between the metal and the plastic tank.
 

if this is the type you have, they can retighten it . . i had it done on this type before . . might fix it, might not
 

 

2/24/2015 7:11 PM  #20


Re: Stop Leak? (Ford but not Mustang related)

barnett468 wrote:

boomyal wrote:

Brents65 wrote:

Take it to your local radiator shop and have it repaired. It will be cheaper than you think.

As far as I know, shops do not repair aluminum radiators, especially when the leak is between the metal and the plastic tank.
 

if this is the type you have, they can retighten it . . i had it done on this type before . . might fix it, might not
 

I'll call the local radiator shop and see what they may be able to do.
 

     Thread Starter
 

2/24/2015 8:50 PM  #21


Re: Stop Leak? (Ford but not Mustang related)

red351 wrote:

surprised nobody mention 2 spoon full of black pepper.always work me, but never used it for alumium rad. never had no bad side-effect, most radiators never leak again.

X-2
6s6
 


Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
 

Board footera


REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.