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


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 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.






Edited by Pushrod-Power on Saturday 13th December 10:48
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 f
k off giving people incorrect advice. Copper grease has it's place, but brake threads isn't one of them.

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 f
k 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 



Edited by Pushrod-Power on Saturday 13th December 13:51
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
At least I could understand what he wrote, unlike some C&G standard postings


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


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.


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.
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.
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 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.


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