vacuum beleeding brakes question

[JBE]

I tried to vacuum bleed the brakes on my GQ today and it didn’t work at all.
It looks like air gets sucked in through the thread of the nipple, which defeats the whole system.
Because the bleeder system I bought didn’t come with a lot of instructions, I googled vacuum bleeding a bit and I can’t see where I went wrong.
Does anyone have experience with this??
Is there a trick, I missed like sealing the thread of the nipple somehow??
Or is it possible that some types of bleeding nipples just can’t be vac bled?

Cheers
Joachim

[rowenb]

Had the same problem and ended up doing it with another person. The vacuum bottle makes a good fluid catch! I would love for this to work as its a good idea as i usually work on my cars by myself.

[JBE]

Had the same problem and ended up doing it with another person. The vacuum bottle makes a good fluid catch! I would love for this to work as its a good idea as i usually work on my cars by myself.

100 dollars would be a bit steep for a fluid catch .

BTW, that's what I use: http://justtools.com.au/prod3559.htm" onclick="window.open(this.href);return false;

[watty]

usually a little grease on the thread of the nipple solves the problem

[rowenb]

100 dollars would be a bit steep for a fluid catch .

Yep expensive catch can its been, will try the grease on the nipples but can't see it gettin a good seal still. A bloke told me he used to use a bike pump at the master cylinder with all the nipples cracked open at once. That was on older cars though.

[mattc]

The instructions that came with mine said to use grease to help seal the thread if needed.

[TheOtherLeft]

100 dollars would be a bit steep for a fluid catch .

Yep expensive catch can its been, will try the grease on the nipples but can't see it gettin a good seal still. A bloke told me he used to use a bike pump at the master cylinder with all the nipples cracked open at once. That was on older cars though.

I think that's a poor man's version of a power brake bleeder. I've seen more expensive versions of it the mechanics.

[Geoffro]

Hi, pressure bleeding is easy to do by yourself, and can be done with bike pump or compressor with pressure turned right down at regulator ( I use a compressor). Drill a 1/8th hole in the top of the reservoir cap and bleed in the order as stated in manual, do not do them all at once easier to set up long bleed tube and container and do one at a time, when the new fluid comes through with no bubbles you are done. When finished put a self tapper with teflon in hole.
PS- be sure to let off static pressure before putting air into reservoir.