Replaceing Master Cylinder Rubber Grommet Advice

Anthiron The Baja Rejuvenation Begins

4,936 posts · joined Oct 2003 · 4 Sep 2009, 1:31 am

#733368

ok so i found a leak in my brake circuit. the rubber grommet where the reservoir solid line enters the cylinder.

so i reefed it out and its a bit perished so i ordered a new one.

but i tryed to refit the old one in the short term and cant get it in the hole. is there a trick to get the grommet in? should i push the solid line into the grommet before or after its fitted?

anyway any tips are appriciated.

thanks nicko

62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom

Special Air Service Chief "Gunna"

1,769 posts · joined Oct 2004 · 4 Sep 2009, 5:34 am

#733372

Leave it out in the sun to soften up for a while, give it a liberal coating of brake fluid & then have a try. I would leave the hard line out until the grommet goes in, gives the grommet room to move on the way in. Hard line should go in pretty easy afterwards with a little bit of brake fluid on it.

I think

Cheers
Brendan

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vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 4 Sep 2009, 6:52 am

#733378

slip a bit of Vasso on it n around the hole always makes things go in easier

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 4 Sep 2009, 9:16 am

#733397

Go the brakfluid not vasso (petrochem-wrong type of rubber) res pipe last as above but make sure it's nice and clean and STRAIGHT.

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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Camo Custom Title Time!

1,936 posts · joined Oct 2007 · 4 Sep 2009, 11:00 am

#733412

vw54 wrote:slip a bit of Vasso on it n around the hole always makes things go in easier

Birch,

what have you been greasing up lately and slipping in to 🙅 Can you show any photos to elaborate 😂

Kev

I thought rebuilding a VW would be cheap - Shit I was wrong, just don't let the wife know !!!!

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Anthiron The Baja Rejuvenation Begins

4,936 posts · joined Oct 2003 · 4 Sep 2009, 4:27 pm

#733435

ok well after a whole day of swearing and no brakes, well 4 hours really....., i got up at 12. i have brakes again.

got the grommet in but when i pushed the solid line thru the grommet it managed to wedge some rubber over the outlet.

so then when i went to bleed my brakes the master cylinder couldnt replace the fluid it was losing and it felt like the cylinder was buggered.

so i pulled out the master cylinder and blocked off the outlets and it seemed to have pressure, put it all back in and did a better job with the grommet and after much bleeding i now have an ok pedal. not fantastic but ill bleed them again tomorrow and see how it goes.

will air work its way closer to the wheel cylinders with driving making it easier to bleed?

62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom