Radiator "scale"

Mustang Australia

Author Topic: Radiator "scale"  (Read 1894 times)

Offline sjsb1965

  • Pony
  • **
  • Posts: 31
  • I'm new here
  • Location: Sydney hills district
Radiator "scale"
« on: July 17, 2020, 10:20:32 PM »
Im hoping you great guys can help me.
I got electronic gauges fitted to my car and the auto electrician fitted the sensor to the front of the manifold and the original at the back of the manifold and I believe he lost water in the process and topped it up with tap water. I had in there before a solution of RM-125 and since then I've noticed a buildup of scale . the engine was re-built approximately 18 months ago and the coolnt has heen fine till then I believe this is causing the engine to heat up slightly blocking the tubes in the radiator . do I have to flush the radiator and clean it out and start again.
 Thanks in advance for your help.

Offline AussiePhil

  • Worked
  • ***
  • Posts: 271
  • Supercharged
  • Location: Bathurst
  • Name: Phil
  • Car: 68 Mustang
Re: Radiator "scale"
« Reply #1 on: July 18, 2020, 12:06:47 AM »
Hi, some may say coca-cola, but I'm not going the be silly enough to do that!
I'd drop the lot and and use a Radiator flush and clean!
There's plenty of brands, Rislone, Techolloy, Penrite, Nylon.
Fyi you can't mix some colours of coolant!

Others may not agree!
Cheers Phil.
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline Shep69

  • Worked
  • ***
  • Posts: 224
Re: Radiator "scale"
« Reply #2 on: July 19, 2020, 02:48:51 PM »
I was having the same issue so I got the radiator flushed and fitted a Tefba filter.

Offline nickd

  • Worked
  • ***
  • Posts: 368
  • MOCA Vic Member 924
  • Location: Mornington Peninsula
  • Name: Nick
  • Car: 1965 Coupe
Re: Radiator "scale"
« Reply #3 on: July 20, 2020, 02:42:00 PM »
Those tubes looked pretty well blocked and I doubt that a bit of water has done that.
I would be taking the radiator out and getting a workshop to take the tanks off and clean them properly.

Offline sjsb1965

  • Pony
  • **
  • Posts: 31
  • I'm new here
  • Location: Sydney hills district
Re: Radiator "scale"
« Reply #4 on: July 20, 2020, 09:09:18 PM »
Im hoping a cleaner would do it.would a cleaner like penrite do it?
What actually causes to develop?

Offline AussiePhil

  • Worked
  • ***
  • Posts: 271
  • Supercharged
  • Location: Bathurst
  • Name: Phil
  • Car: 68 Mustang
Re: Radiator "scale"
« Reply #5 on: July 21, 2020, 01:43:30 AM »
Hi,
looks like calcium, not sure! Some bore waters have a lot of calcium, but even tap water wouldn't do that damage so quickly imo. If you've got some old flat coke empty your system and just see what it does, I was expecting to get hit around the head for suggesting before. It shouldn't hurt unless your system is poor!
It's not going to hurt giving the Penrite a go, easy to see the results on the tubes you can see.
Sacrificial Anodes wouldn't help, they're just for corrosion! More fore the aluminium!
All the best with it!
Cheers Phil.
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline j hatzivalsamis

  • Pony
  • **
  • Posts: 15
  • I'm new here
  • Location: darwin
  • Name: jimmy hatziv
  • Car: 67 convertible
Re: Radiator "scale"
« Reply #6 on: July 21, 2020, 09:43:21 AM »
I had a similar issue and used the Tefba filter on the top radiator hose (you have to remember to clean out as they clog up ) but first remove your radiator sit it flat and fill it with vinegar , flush after 3/4 days and shake it well you will see the copper clean but if the nuggets are still evident i too would suggest surgery.

Offline AussiePhil

  • Worked
  • ***
  • Posts: 271
  • Supercharged
  • Location: Bathurst
  • Name: Phil
  • Car: 68 Mustang
Re: Radiator "scale"
« Reply #7 on: July 21, 2020, 04:25:18 PM »
Well done Jim, sounds like a great idea!
My wife uses vinegar around the house, I didn't think of that!
You'd find all these products are something simple like that with colour!
Cheers Phil
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline barnett468

  • Cobra
  • *********
  • Posts: 7128
Re: Radiator "scale"
« Reply #8 on: July 22, 2020, 08:58:41 AM »
ok, remove a piece of it, and if it is brown, it is rust and it was not caused recently by using tap water. it was either in there all along, or has broken free from your engine block.

any mild rust dissolver won't do a thing to dissolve that if it is rust. one of the best things to try is oxalic acid, mixed at 8 ounces per gallon of water, then just leave it in there for a couple days and drive the car around and look at the rad periodically. put a filter on before you do this.

do not breathe the powder or the fumes after you mix it.

the other option is to have the radiator disassembled then rodded out.



« Last Edit: July 22, 2020, 09:02:21 AM by barnett468 »

Offline sjsb1965

  • Pony
  • **
  • Posts: 31
  • I'm new here
  • Location: Sydney hills district
Re: Radiator "scale"
« Reply #9 on: July 22, 2020, 06:36:20 PM »
This is what is in the radiator ( on camera it looks darker ) its whitish when dry and crumbly
The big piece is wet and the small crumbs are dry. Is it scale ?
While im at it is it better if 1.. I put a 6 blade fan ? ( currently have 5 blade)
2 a temp sender on thermostat housing ?
I have currently a 20 inch radiator.
Thanks for your help

Offline barnett468

  • Cobra
  • *********
  • Posts: 7128
Re: Radiator "scale"
« Reply #10 on: July 23, 2020, 03:09:14 AM »
Wow, I have never seen that before, but it is not rust.

Offline scedd1

  • Worked
  • ***
  • Posts: 489
  • Location: Sunshine Coast QLD
  • Name: Steve
  • Car: 68 Coupe - Frankenstang
Re: Radiator "scale"
« Reply #11 on: July 23, 2020, 05:03:27 AM »
Looks like an apple danish  :lmao:
____________
./____________ \.
 ( ]]] _ _ O _ _ [[[ )
\_ o _ _____ _ o _/
 |___|            |___|

Offline big al

  • Worked
  • ***
  • Posts: 613
  • Location: Western Sydney
Re: Radiator "scale"
« Reply #12 on: July 23, 2020, 08:38:46 AM »
The only way to remove that scale is to take the radiator out and have it cleaned professionally. By that I mean, the radiator shop will remove both the top and bottom tanks and rod the radiator tubes.

In regards to the white scale, that is the Glycol in the so-called coolant changing it's composition due to the lack of use or running of the car. It is quite common with lack of vehicle use, it's what happens when using a generic, or cheap brand of coolant. Most of these so called coolants have a high percentage of glycol in them which is a no no in our climate here in Sydney or Queensland.

Glycol is actually an Anti-Freeze agent and is silicone based, and in actual fact, insulates the water from the radiator, and engine block, therefore restricting heat transfer. It's especially no good in older cars that tend to run a bit hotter, due to the corrosion in the engine block, as well as the bore size being enlarged when reconditioned.

My advice to you is to source a corrosion inhibitor with the least amount of glycol in it, and get the radiator professionally serviced. You won't shift that scale with the garden hose, or the radiator cleaner in a bottle. It's just a waste of money

Al
« Last Edit: July 24, 2020, 02:54:18 PM by big al »

Offline AussiePhil

  • Worked
  • ***
  • Posts: 271
  • Supercharged
  • Location: Bathurst
  • Name: Phil
  • Car: 68 Mustang
Re: Radiator "scale"
« Reply #13 on: July 27, 2020, 11:35:01 AM »
Hi, for what it's going to cost you to get the top and bottom tanks removed, tubes cleaned and reassembled, which will come a pretty time consuming and costly job is it worth looking at a new radiator.
I know Ray dead66 had a new copper 66 radiator he bought but could not use! You could soak yours in a cleaner over time! And use as a spare!
Just thought it's worth a shot.
Not sure what he wants, I've got a wider 68 copper radiator for sale but it has both outlets on the LHS, ODD!
Also when the engine was rebuilt did that ultrasonic clean the block!
Cheers Phil
« Last Edit: July 27, 2020, 11:38:18 AM by AussiePhil »
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline USA066

  • Worked
  • ***
  • Posts: 347
  • Robbo
  • Location: Bunbury WA
  • Name: Colin
Re: Radiator "scale"
« Reply #14 on: July 27, 2020, 01:23:21 PM »
Iím with Big Al, before going too far, get it professionally looked at. Either your mechanic or radiator shop should be able to do a high pressure flush without removing the radiator.
My mechanic has done mine for $220 (including new coolant), but it requires the correct equipment.
Whether that is enough to clean it without removing the tanks, remains to be seen.
2007 GT Convertible
2008 Bullitt
1966 Coupe

Offline sjsb1965

  • Pony
  • **
  • Posts: 31
  • I'm new here
  • Location: Sydney hills district
Re: Radiator "scale"
« Reply #15 on: July 27, 2020, 02:18:50 PM »
Thanks for your replies
Im going to take it to an old school radiator shop this Friday if
all goes to plan.
I'll keep you updated.

Offline sjsb1965

  • Pony
  • **
  • Posts: 31
  • I'm new here
  • Location: Sydney hills district
Re: Radiator "scale"
« Reply #16 on: July 31, 2020, 05:32:45 PM »
Took the car to old mate radiator man. He basically said give it a
Flush yourself, and because it gets hot in traffic 210 f and after
Driving for about 3 to 4 mins it comes back down to 180f he said
I need more air flow through the radiator, he said the radiator is fine.
While driving to the radiator shop i had the a/c on and the temp
Behaved the same with it off on the way back.
So now i have to work out if i put a 6 blade fan on and try that and
Then if it still plays up I'll try thermo fans .

Offline AussiePhil

  • Worked
  • ***
  • Posts: 271
  • Supercharged
  • Location: Bathurst
  • Name: Phil
  • Car: 68 Mustang
Re: Radiator "scale"
« Reply #17 on: July 31, 2020, 05:58:34 PM »
Hi, with your fan is the shroud set up properly,  Google can help!
Cheers Phil.
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline sjsb1965

  • Pony
  • **
  • Posts: 31
  • I'm new here
  • Location: Sydney hills district
Re: Radiator "scale"
« Reply #18 on: July 31, 2020, 07:50:43 PM »
This is my set up

Offline AussiePhil

  • Worked
  • ***
  • Posts: 271
  • Supercharged
  • Location: Bathurst
  • Name: Phil
  • Car: 68 Mustang
Re: Radiator "scale"
« Reply #19 on: July 31, 2020, 09:54:04 PM »
Yep , that looks great, just a thought! What about using Coca-cola, not to aggressive,  it'll clean a penny!
Cheers Phil.
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline HEVEN67

  • Top Streeter
  • ******
  • Posts: 3765
Re: Radiator "scale"
« Reply #20 on: August 11, 2020, 09:59:19 AM »
Yep , that looks great, just a thought! What about using Coca-cola, not to aggressive,  it'll clean a penny!
Cheers Phil.

Is Pepsi Max ok? I prefere the taste and I dont have any pennies!
Luvhev
A successful man is one who makes more money than his wife can spend. A successful woman is one who can find such a man.




Real muscle cars have 3 pedals. Where theres smoke theres Tyres

Offline j hatzivalsamis

  • Pony
  • **
  • Posts: 15
  • I'm new here
  • Location: darwin
  • Name: jimmy hatziv
  • Car: 67 convertible
Re: Radiator "scale"
« Reply #21 on: August 11, 2020, 02:00:08 PM »
It would be peace of mind to check if this issue is in the block as well , a good flush with a sieve to catch evidence to see. Good Luck.

Offline AussiePhil

  • Worked
  • ***
  • Posts: 271
  • Supercharged
  • Location: Bathurst
  • Name: Phil
  • Car: 68 Mustang
Re: Radiator "scale"
« Reply #22 on: August 11, 2020, 04:12:30 PM »
Hi all, I've mentioned Coca-cola twice and thought someone what have a dig at me, no seriously that's what's been used in the past, not sure about Pepsi or Pepsi Max, I reckon Solo may help, what was the saying, slam down a Solo! GO hard go Solo!
 :lmao:
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline big al

  • Worked
  • ***
  • Posts: 613
  • Location: Western Sydney
Re: Radiator "scale"
« Reply #23 on: August 13, 2020, 02:07:05 PM »
Ambient temperature is cool now.

The real test is when summer comes along and it really warms up

If your radiator guy told you that the radiator is fine without even removing the tanks, I'd be very careful as that scale will be right throuigh all your tubes

I suppose only time will tell on a hot day!

Offline 66FBK

  • Worked
  • ***
  • Posts: 484
Re: Radiator "scale"
« Reply #24 on: August 20, 2020, 09:07:42 AM »
I am not a chemist but the white deposits look like calcium which usually comes from contaminated water in the coolant. I live in Brisbane and the water here is very high in calcium which leaves hard calcium deposits in my kettle and around tap fittings. It can be dissolved quickly using vinegar or CLR product. I would do some handy household experiments with the deposit you retrieved from the radiator and see if it dissolves with vinegar . That will prove if it is calcium based. Another theory is contaminated coolant can also cause porous aluminium like the thermostat housing to corrode and produce similar white deposits. I have had this happen when I used a Castrol concentrated coolant you add 1: 10 water and clogged the thermostat with the housing corroding and producing a white sludgy substance.
He, with the most toys wins.

 

Visit Custom Mustangs