Day 7, break down 2 :(
09 December 2013, 11:49 AM
#35
Electro chemical degradation happens when the coolant mixture reacts with the different metals in the engine to form a galvanic cell and become charged. It discharges itself through the hoses (which are made of a lot of things as well as rubber) and weakens them usually at the highest point.
It's the reason why Brembos, for example, have a habit of corroding themselves and their fastening bolts into an immovable mess: the Brembo caliper is alloy, the bolt, steal, and salt water or just dirty water off the road makes little electro-chemical cells around each bolt, which acclerate the corrosion.
09 December 2013, 11:56 AM
#36
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This is the correct answer.
It's the reason why Brembos, for example, have a habit of corroding themselves and their fastening bolts into an immovable mess: the Brembo caliper is alloy, the bolt, steal, and salt water or just dirty water off the road makes little electro-chemical cells around each bolt, which acclerate the corrosion.
It's the reason why Brembos, for example, have a habit of corroding themselves and their fastening bolts into an immovable mess: the Brembo caliper is alloy, the bolt, steal, and salt water or just dirty water off the road makes little electro-chemical cells around each bolt, which acclerate the corrosion.
Not sure why there is even debate about it here (well I am actually as YKW is involved
), it's well known in the automotive industry as Paddy more or less said.
09 December 2013, 01:46 PM
#37
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Very comprehensive as well.
It's bad enough worrying about external degradation, let alone what thermal, electro and chemical degradation's eating at the heart of the thing !
09 December 2013, 01:48 PM
#38
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This is the correct answer.
It's the reason why Brembos, for example, have a habit of corroding themselves and their fastening bolts into an immovable mess: the Brembo caliper is alloy, the bolt, steal, and salt water or just dirty water off the road makes little electro-chemical cells around each bolt, which acclerate the corrosion.
It's the reason why Brembos, for example, have a habit of corroding themselves and their fastening bolts into an immovable mess: the Brembo caliper is alloy, the bolt, steal, and salt water or just dirty water off the road makes little electro-chemical cells around each bolt, which acclerate the corrosion.
Oh no.
Mine's got Brembos
09 December 2013, 02:26 PM
#40
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Well that escalated quickly...
Back on topic, its the top rad hose that's gone, being chaned now and a coolant flush, which saves me a job as I was going to do the coolant anyway!
Back on topic, its the top rad hose that's gone, being chaned now and a coolant flush, which saves me a job as I was going to do the coolant anyway!
09 December 2013, 07:54 PM
#43
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On the Brembo side, found out that if you use a silicone based anti seize agent, not copper slip then you don't have the issue with the bolt seize due to the conductivity with the different metals and road salt/dirt etc.
Will find the name of the product I used, was reccomeded to me by someone in "The Know"
Will find the name of the product I used, was reccomeded to me by someone in "The Know"
09 December 2013, 10:37 PM
#44
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Yep, well that's what happened. I was in N. Wales and the temp gauge went up. Opened the bonnet to see a nice little jet of water coming out of a small hole in he top hose. Taped it up with electrical tape and filled the coolant up as best I could from a bottle of spring water in the car. Made it the 5 miles to the garage down the road whereupon opneing the bonnet said pinhole was a gash in the hose and the car had to be recovered home to Lancs via the AA.
10 December 2013, 01:39 AM
#45
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Anyway, glad you've got it sorted and that you've got more than just a repair.
10 December 2013, 09:04 AM
#46
Yep, well that's what happened. I was in N. Wales and the temp gauge went up. Opened the bonnet to see a nice little jet of water coming out of a small hole in he top hose. Taped it up with electrical tape and filled the coolant up as best I could from a bottle of spring water in the car. Made it the 5 miles to the garage down the road whereupon opneing the bonnet said pinhole was a gash in the hose and the car had to be recovered home to Lancs via the AA.
Drove home. As I arrived, MORE steam, jumped out, almost threw the bonnet up and just caught the tail end of a tiny fountain from the top hose, striking the front of the block and running down onto the headers. It stopped as I watched it.
Sorted it same day.
10 December 2013, 09:41 AM
#47
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I was really lucky: I got clouds of steam less than 200 yards from home. Pulled over, had a look, nowt, temperature OK.....
Drove home. As I arrived, MORE steam, jumped out, almost threw the bonnet up and just caught the tail end of a tiny fountain from the top hose, striking the front of the block and running down onto the headers. It stopped as I watched it.
Sorted it same day.
Drove home. As I arrived, MORE steam, jumped out, almost threw the bonnet up and just caught the tail end of a tiny fountain from the top hose, striking the front of the block and running down onto the headers. It stopped as I watched it.
Sorted it same day.
I love that feeling of opening the bonnet and hoping what you are about find is not too bad 
10 December 2013, 06:32 PM
#49
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Picked the car up tonight, as I had suspected it had the wrong coolant in previously so top rad hose replaced and coolant flushed through with correct stuff. One lovely drive home despite catching some bad traffic.
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