[TR] Fwd: Brake Bleeding

[Bob]

On Sunday, July 25, 2010 06:51:36 pm bill bickerton wrote:
> Should have mentioned what kind of car i'm dealing with:
> 1964 Triumph TR4 with type C calipers.
> 
> ---------- Forwarded message ----------
> From: bill bickerton <bbick59 at gmail.com>
> Date: Sun, Jul 25, 2010 at 6:06 PM
> Subject: Brake Bleeding
> To: triumphs at autox.team.net
> 
> 
> Hi list, I'm hoping someone out there can help me out with my brake
> bleeding issue however, I'm sure you are all out enjoying your TR's while
> i sit it the garage watching air bubbles all day.
> 
> What I'm trying to accomplish is to transition from DOT 3 to DOT 5, i have
> speed bleeders and I've tried to bleed the conventional way with no luck so
> i am now using an EZ bleeder system that uses the vacuum created by the air
> compressor in order to draw new fluids down through the system, still no
> luck just bubbles.
> 
> Here is some history of what I've done to the car that brought me to this
> point.
> 1. rebuilt calipers
> 2. new caliper pistons
> 3. new stainless steel brake hoses
> 4. rebuilt master cylinder
> 5. blew out brake lines with air after removing the DOT 3
> 6. ran denatured alcohol through the lines prior to filling the MC with
> DOT5
> 
> 
> I've checked all the lines for leaks (visually) and there doesn't appear to
> be any, plus i would see liquid spots on the floor.
> One thing i did that might be important to this story (hoping it's not) i
> had to split one of my calipers in order to remove a fused piston however,
> i replaced the small O ring between the caliper and used the correct
> torque(s) when putting them back together. At this point i do not see any
> leaking of fluid between the two halves.
> 
> I've been working on bleeding my brakes for 3 days now and the air bubbles
> just keep coming and the pedal is mushy. I'm hoping that someone out there
> may have experienced the same thing and has some tips on how you overcame
> the issue.
> 
> Thanks all,
> Bill
> 
Bill,

Sounds to me like a fitting is not secure.

I have used speed bleeders on my 4 with no problem. They work great.

I would go inspect all break line fittings for tightness and check again for 
leaks.

I tried the EZ bleeder system but it didnt work for me. It helps to get the 
master cyl. primed but that is about all.

Try putting a regular bleed screw in the right most rear brake cyl. and just 
let it leak while connect to a bleed hose for awhile.
Then replace with the speed bleeder and if you are still getting air there you 
must have air coming from somewhere.

Good luck.

Bob