brake line connectors ...copper grease ?
brake line connectors ...copper grease ?
Author
Discussion

jackal

Original Poster:

11,250 posts

299 months

Friday 14th November 2008
quotequote all
generally not practised but is it a good idea or not so good ?


dilbert

7,741 posts

248 months

Friday 14th November 2008
quotequote all
I think it's a good idea. I guess there is the possibility of contamination, but I've never had a problem. What it stops is the fittings welding themselves to the pipes and each other, ready to shear off next time you work on it.

I usually put a dob on the pipe where the fitting would be and wipe it around the pipe before pushing the fitting over the grease. Then just wipe some grease into the threads and do the joint up.

Edited by dilbert on Friday 14th November 16:38

HRG

72,863 posts

256 months

Friday 14th November 2008
quotequote all
jackal said:
generally not practised but is it a good idea or not so good ?
Use fresh brake fluid to lube the fittings.

jackal

Original Poster:

11,250 posts

299 months

Friday 14th November 2008
quotequote all
ok thanks

mgrays

189 posts

207 months

Thursday 27th November 2008
quotequote all
I'm with Dilbert .. there is risk of contamination but in reality it never happens as you horse a litre of fluid through afterwards (well the stuff is cheap, the bottle goes off in a few months and you can never get a perfect bleed so more is better).

If you really want .. use either "rubber grease for brakes" or Silicon grease .. both are brake fluid compatible.

The idea of using brake fluid while safe is not so good in the long term; it is hydroscopic and aggressive so it first softens any coating and then pulls water in to corrode it. I always flush outside with lots of water afterwards and then paint/wax etc. The water will flush the brake fluid away and the coatings keep the rust at bay.

Pushrod-Power

233 posts

202 months

Friday 12th December 2008
quotequote all
mgrays said:
I'm with Dilbert .. there is risk of contamination but in reality it never happens as you horse a litre of fluid through afterwards (well the stuff is cheap, the bottle goes off in a few months and you can never get a perfect bleed so more is better).

If you really want .. use either "rubber grease for brakes" or Silicon grease .. both are brake fluid compatible.

The idea of using brake fluid while safe is not so good in the long term; it is hydroscopic and aggressive so it first softens any coating and then pulls water in to corrode it. I always flush outside with lots of water afterwards and then paint/wax etc. The water will flush the brake fluid away and the coatings keep the rust at bay.
Exactly,and how are you supposed to gauge if you have any leaks arond the fittings if you just smeared/dipped the threads in brakefluid rolleyes good one NOT laugh

dilbert

7,741 posts

248 months

Friday 12th December 2008
quotequote all
Pushrod-Power said:
mgrays said:
I'm with Dilbert .. there is risk of contamination but in reality it never happens as you horse a litre of fluid through afterwards (well the stuff is cheap, the bottle goes off in a few months and you can never get a perfect bleed so more is better).

If you really want .. use either "rubber grease for brakes" or Silicon grease .. both are brake fluid compatible.

The idea of using brake fluid while safe is not so good in the long term; it is hydroscopic and aggressive so it first softens any coating and then pulls water in to corrode it. I always flush outside with lots of water afterwards and then paint/wax etc. The water will flush the brake fluid away and the coatings keep the rust at bay.
Exactly,and how are you supposed to gauge if you have any leaks arond the fittings if you just smeared/dipped the threads in brakefluid rolleyes good one NOT laugh
Clearly you have never used copper grease. Had you doneso you would realise that when it mixes with any potential leaking brake fluid, not only do the metal particles in the grease leave a trace where leaking fluid runs across surfaces, it also leaves a "tell tale" mark on the floor.

HRG

72,863 posts

256 months

Friday 12th December 2008
quotequote all
Pushrod-Power said:
mgrays said:
I'm with Dilbert .. there is risk of contamination but in reality it never happens as you horse a litre of fluid through afterwards (well the stuff is cheap, the bottle goes off in a few months and you can never get a perfect bleed so more is better).

If you really want .. use either "rubber grease for brakes" or Silicon grease .. both are brake fluid compatible.

The idea of using brake fluid while safe is not so good in the long term; it is hydroscopic and aggressive so it first softens any coating and then pulls water in to corrode it. I always flush outside with lots of water afterwards and then paint/wax etc. The water will flush the brake fluid away and the coatings keep the rust at bay.
Exactly,and how are you supposed to gauge if you have any leaks arond the fittings if you just smeared/dipped the threads in brakefluid rolleyes good one NOT laugh
Err, you wipe the excess off you frikkin donut. So what qualification do you have that means you are better qualified than the manufacturers of my brakes, as this was their advice.

Pushrod-Power

233 posts

202 months

Saturday 13th December 2008
quotequote all
HRG said:
Pushrod-Power said:
mgrays said:
I'm with Dilbert .. there is risk of contamination but in reality it never happens as you horse a litre of fluid through afterwards (well the stuff is cheap, the bottle goes off in a few months and you can never get a perfect bleed so more is better).

If you really want .. use either "rubber grease for brakes" or Silicon grease .. both are brake fluid compatible.

The idea of using brake fluid while safe is not so good in the long term; it is hydroscopic and aggressive so it first softens any coating and then pulls water in to corrode it. I always flush outside with lots of water afterwards and then paint/wax etc. The water will flush the brake fluid away and the coatings keep the rust at bay.
Exactly,and how are you supposed to gauge if you have any leaks arond the fittings if you just smeared/dipped the threads in brakefluid rolleyes good one NOT laugh
Err, you wipe the excess off you frikkin donut. So what qualification do you have that means you are better qualified than the manufacturers of my brakes, as this was their advice.
Think outside the box numbnuts,the manafacturer also tells owners to run their engines in for a thousand miles also suppose you do that too i suppose readitrofl just because the manafacturer says something does not mean its the best solution,i would still stick with the copperslip just refrain from getting it on the flare or in the pipe a smear on the threads is all thats called for,and HRG i would stay away from cars if you have to quote what the manafacturer as told you as your argument laugh stick with your computers boy smokin



Edited by Pushrod-Power on Saturday 13th December 10:48

HRG

72,863 posts

256 months

Saturday 13th December 2008
quotequote all
Now is probably the time to mention that I did a five year City & Guilds apprenticeship as mechanical engineer... So bring it on cowboy, bring your qualifications to the table or fk off giving people incorrect advice. Copper grease has it's place, but brake threads isn't one of them.

Pushrod-Power

233 posts

202 months

Saturday 13th December 2008
quotequote all
HRG said:
Now is probably the time to mention that I did a five year City & Guilds apprenticeship as mechanical engineer... So bring it on cowboy, bring your qualifications to the table or fk off giving people incorrect advice. Copper grease has it's place, but brake threads isn't one of them.
Dont be a clown,i passed City & Guilds in motor vehicle and it was so easy a 10 year old could have done it with their eyes shut,i also passed City & Guilds in maths back in the eighties when i was leaving school and that was just as daft(multiple choice)so please dont throw your City & Guilds crap at me laugh City & Guilds means st all its experience that matters,something you obviously dont behold otherwise you would not have come out with your stupid lubeing the fittings with brakefluid comment,get back on the tools and get some experience behind you before you dig yourself an even bigger hole thumbup

Edited by Pushrod-Power on Saturday 13th December 13:51

spend

12,581 posts

268 months

Saturday 13th December 2008
quotequote all
I think Blairout was referring to AP who are eminently qualified to comment on brake assembly issues.

At least I could understand what he wrote, unlike some C&G standard postings tongue out

jackal

Original Poster:

11,250 posts

299 months

Sunday 14th December 2008
quotequote all
well i can tell you that Bremobo dont know WTF they are doing

they see fit to loctite porsche caliper plate screws in, causing all manner of grief years down the line


thinking outside the box, i like that

HRG

72,863 posts

256 months

Sunday 14th December 2008
quotequote all
spend said:
I think Blairout was referring to AP who are eminently qualified to comment on brake assembly issues.

At least I could understand what he wrote, unlike some C&G standard postings tongue out
rofl

If I was going to travel in a plane maintained by someone else I'd hope they possessed the intelligence to follow the most basic of instructions. Sure, do things your own way if you want, but when other peoples lives depend on it it pays to follow the correct procedure or face being held liable for your errors.

The guys loading valujet 592 couldn't be arsed to follow correct procedure, nuff said.





wildoliver

9,176 posts

233 months

Sunday 14th December 2008
quotequote all
jackal said:
well i can tell you that Bremobo dont know WTF they are doing

they see fit to loctite porsche caliper plate screws in, causing all manner of grief years down the line


thinking outside the box, i like that
Is a Bremobo some kind of bd child of these two?





?

jackal

Original Poster:

11,250 posts

299 months

Sunday 14th December 2008
quotequote all
lol

Pushrod-Power

233 posts

202 months

Monday 15th December 2008
quotequote all
HRG said:
spend said:
I think Blairout was referring to AP who are eminently qualified to comment on brake assembly issues.

At least I could understand what he wrote, unlike some C&G standard postings tongue out
rofl

If I was going to travel in a plane maintained by someone else I'd hope they possessed the intelligence to follow the most basic of instructions. Sure, do things your own way if you want, but when other peoples lives depend on it it pays to follow the correct procedure or face being held liable for your errors.

The guys loading valujet 592 couldn't be arsed to follow correct procedure, nuff said.
So your saying using something other than brakefluid on the unions will have dangerous consequences? you Plum nuts you most definitely need to stay away from the motor vehicle if you think that this subject is in the same league as valujet 592,and you talk about procedure,s laugh

HRG

72,863 posts

256 months

Monday 15th December 2008
quotequote all
I'm saying that it makes sense to follow manufacturers guidelines. The OP asked for the correct way to lube the fittings and the 'correct' way is to use clean fluid from a sealed container. This avoids the possibility of contamination and introducing foreign matter or a substance with a low boiling point into the braking system.

Sure, you can bodge away to your hearts content but if you don't know the 'correct' way to do something there's less chance of doing the job correctly.



Pushrod-Power

233 posts

202 months

Monday 15th December 2008
quotequote all
HRG said:
I'm saying that it makes sense to follow manufacturers guidelines. The OP asked for the correct way to lube the fittings and the 'correct' way is to use clean fluid from a sealed container. This avoids the possibility of contamination and introducing foreign matter or a substance with a low boiling point into the braking system.

Sure, you can bodge away to your hearts content but if you don't know the 'correct' way to do something there's less chance of doing the job correctly.
Ok agreed wink see what you mean,obviously you should make sure that any lubricant you apply to the threads does not enter the system i would presume that any one using said approach would make sure of that anyway,sorry for the name calling getmecoat

Edited by Pushrod-Power on Monday 15th December 10:37