Weeping Brake Bleeders

[RayL]

Does anyone have a solution to stop brake fluid from weeping around the bleeder valve threads?

This has been an ongoing problem with my front disc brake bleeders since I got the car. I've tried several different bleeder valves (Dorman among other no-name pieces) with no luck. It feels like if I tighten them any harder, they will snap off.

The next upgrade planned for the car is Hydro-Boost, which will probably make this problem worse.

Any ideas?

[Katfish]

My experience

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/3298930/bleeder-screw-not-sealing-update.html#Post3298930

[RayL]

My experience

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/3298930/bleeder-screw-not-sealing-update.html#Post3298930

@Katfish - thanks for the reference thread. I'll try cleaning the seats and installing new bleeders and resort to Rip & Replace if that doesn't work. Which makes me feel like I'm about to go down the rabbit hole of garbage replacement parts again :-(

[Bullitt-]

  I wondered if there's a repair...apparently so but finding a way to buy just what he uses is a mystery

https://secoseals.com/

This looks pretty much like it but I don't know   
https://www.pegasusautoracing.com/productselection.asp?Product=3202&srsltid=AfmBOop9Nm1LBSg3urLMDa3iD77HZPxrFIx0hpFoifEoyvJ8FBH2wqky

[jimynick]

Since you've got nothing to lose, I'd take a brass hammer and give a bleeder screw a damn good clout straight in towards the seat and see if you get a wee bit more of a turn and if the damn screw stops leaking. It seems to be a failure to secure a good seating and this might solve the problem. Curious to see how you make out here. Good luck 

[RayL]

I wondered if there's a repair...apparently so but finding a way to buy just what he uses is a mystery

This looks pretty much like it but I don't know 
https://www.pegasusautoracing.com/productselection.asp?Product=3202&srsltid=AfmBOop9Nm1LBSg3urLMDa3iD77HZPxrFIx0hpFoifEoyvJ8FBH2wqky

Interesting. Looks like he also added some sealant to the threads as part of his fix.

[JH27N0B]

Someone on Moparts was asking about the same issue.
https://board.moparts.org/ubbthreads/ubbthreads.php/topics/3298930/1.html
Looks like they got it to stop.
I've had issues with fuel lines leaking, and the trick I was told was to put a little red grease on the threads to lube them and allow to thread past burrs, which worked!  But I wouldn't use any petroleum based product in a place where it might contaminate the brake fluid.
Perhaps teflon the poster used in that thread did the same trick as grease.

[RayL]

You can guess how successful I've been at getting the OEM caliper bleeders to seal on my 1973 Challenger based on my next question...

Can anyone recommend where to buy replacement calipers?

RockAuto has remanufactured parts from NUGEON & RAYBESTOS and new from DYNAMIC FRICTION.

Napa has only remanufactured stuff. An in-house branded set and the same from NUGEON as RockAuto.

Thanks for any guidance

[Katfish]

I got the NUGEN remans from RockAuto because they use metal pistons.  All the others use phenolic, probably not a big deal, but some claim the plastic pistons are problematic.

From the link I provided above, the thread sealant fixed my issue.

[B5fourspeed]

Use speed bleeders.I replaced all 4 wheels and they work great and will not leak.

[RayL]

I got the NUGEN remans from RockAuto because they use metal pistons.  All the others use phenolic, probably not a big deal, but some claim the plastic pistons are problematic.

From the link I provided above, the thread sealant fixed my issue.

@Katfish - are you saying you had to use thread sealant to stop leaks with the NUGEON remans from RockAuto?

[Katfish]

Yes, thread sealant worked for me.
I will also say, I was probably cranking down the bleeder too much. Check the thread I posted above and you'll see pics of the seat deformed.
New bleeder screws, less tightening and sealant was the answer for me.

[RayL]

Use speed bleeders.I replaced all 4 wheels and they work great and will not leak.

@B5fourspeed Thanks for the suggestion. I have a set of Dorman Quick Bleeders but haven't tried them. The main reason I haven't used the quick bleeders is that I'm installing a hydro-boost system and replacing all brake lines, combo-valve and wheel cylinders at the same time (and now calipers?). I plan to bleed the system using a Holt Industries Pneumatic air operated brake bleeder kit from Harbor Freight. Not sure my pancake air compressor has enough umph to open the quick bleeder check valve.