Ummm I would do it at less than 100 psi... If you let the fliud flow that fast you have no idea what got into the line! I would think you could easily pull air into the system by the turbulence of high speed flow. If you bleed into a small catch container you can guage pretty closely when you need to refill the reservoir. Having raced an Austin Mini in SCCA back in the late 1970's I have a pretty good idea about the importance of good brakes.

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Bill Reimels
Now down to one:
1972 300SE 3.5 W109 (Euro delivery)

Can you imagine the spray when you crak the bleeder at 100psi.....you better hope the spay or splash doesn't get in your eyes.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

Man O Man ! I try to reform ( with regards to someone else's stuff ) and all I get is grief.....

OK,,,, in that case... while it should not be used next year for the brakes... it still could be used for weed killer....

Where did 100 PSI come from?
A good NEW reservoir will explode at 40 - 50 PSI.
The critical factor is keeping the bleeder fluid level full enough that only pure fluid reaches the pickup.
The bleeder fluid maintains the reservoir fluid level, preventing air entering system.
Most systems bleed just fine at 2 - 5 PSI.
Some systems I have connected to and popped the reservoir off the master cylinder at 3 PSI, the mount grommets where junk.

Has anyone considered drilling out the cap of the brake fluid container and putting in one long piece of tubing and one short one? Hook the sprayer to the short tube and the master cylinder to the long one. That way you could just use the sprayer to pressurize the brake fluid bottle. Run the whole quart through the system and then toss the empty bottle. Keep the modified cap and use the sprayer for other uses the rest of the year.

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1985 300SD, 203,000 miles, dark blue

Lil Sarah says: "Poor old Grandma Blue Car...She's sad."

Most brake fluid bottles are ok for roughly 3 psi, but tend to explode at the seams or pop the lid off at higher pressure.

Hey Randy,
You've been out to Greg's place a bunch. You ever see evidence that he's ever thrown anything away???

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

Don't tell anyone but, in actuality, I think Greg's place is just one small part of a secret experiment being conducted by Lawrence Livermore Laboratories. I'm only speculating here but, I think the research may have to do with creating artificial gravity wells for either space travel or some sort of fantastic weapon. My theory is based on the well known fact that if enough heavy stuff is placed in a small area, the localized gravity will change. While not significant individually, multiple artificial gravity wells properly configured in a large-scale array could have real potential. Nothing else can explain it. This secret research is being conducted in plain sight too! Look around, practically EVERY farm or ranch in Texas is like Greg's place — 'littered' tons and tons of 'cast-off' scrap steel. Nothing else can explain it!

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Never a dull moment at Berry Hill Farm.

This sounds a lot like the voice of experience that I hear in my head from time to time. Is there a story lurking here?

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Never a dull moment at Berry Hill Farm.

more violent than bump.
For new members who need help bleeding brakes.

No, Roy, BAM is what happens when new members don't properly read the posts on brake bleeding.

Yup; like I said, Bam.
Hitting other objects because brakes fail to stop = Bam, Yup, yup yup...

So after much procrastination, finally decided to gather the parts and build this. The problem I ran into is this:

Local Autozone needs to special order the correct GM cap (according to the BMW site, 42035 1987-1990 GM). I'm assuming this is the correct cap unless otherwise noted.

I also have the Watts 1/4 ID Clear Vinyl tubing from Lowes for less than $2. On the label it clearly states "Use for: Low Pressure", Since JimmyL uses it, I'm assuming its fine.

I don't have any automotive grade silicone, but I do have some for aquarium use... will it work?

Hoping to bleed this weekend.

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Jason

00 Subaru Legacy (fun wagon)
96 Nissan Sentra (disavowed)
82 300SD (garage queen, will run again hopefully)
87 300DT (Gone: 10/15/2010)

I have a question.
I have changed the fluid in two of my MB's and I used no bleeder at all.
I siphoned out the resivoir fluid, filled with clean fluid, had daughter keep resivoir full, and just opened the bleeders up. fluid flows quite nicely with no pressure at all.
is there something wrong with my MC that lets gravity flow out the fluid?
John

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

AFAIK, silicone-based glues and sealants are all pretty much the same. Make sure you allow the stuff to cure (overnight or more). Do a test, put some cured sealant in a little jar of brake fluid, see what happens (let us know).

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970