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Brake servo vacuum.

Posted: 14 Dec 2014, 15:11
by porthyt
Last one for today.

I think I have traced the dodgy brakes to the part circled below with the arrow pointing to it. It's like a T-Piece between carbs I think to create a vacuum for the servo. It's really perished and I can hear it hissing. The circle on the right is just where there is a threaded hole with nothing in it, should there be?


Image




Is this the piece to fix the perished T piece? http://www.justkampers.com/071-129-755-" onclick="window.open(this.href);return false; ... -1983.html


Thanks everybody for your time and help.

Cheers
Josh

Re: Brake servo vacuum.

Posted: 14 Dec 2014, 16:14
by BOXY
The link to the tee doesn't work?
When you replace it, you might need to set-up the mixture. It might have been fiddled with to over-come the weak mixture the leaking elbow has been causing.

The hole looks like its where the throttle damper should be? It's the round thing on the left of this picture.

Image

Re: Brake servo vacuum.

Posted: 14 Dec 2014, 16:54
by porthyt
Hmm, thanks for that. Try this link .

http://www.justkampers.com/071-129-755- ... -1983.html" onclick="window.open(this.href);return false;

Would you adjust the mixture using a colour tune?

Yep that is the part that is missing. What does it do?

Re: Brake servo vacuum.

Posted: 14 Dec 2014, 16:55
by porthyt
Doh. Doesn't work again. It is a JK part with part number J10772

Re: Brake servo vacuum.

Posted: 14 Dec 2014, 17:34
by BOXY
That's the right part. Check the elbow under the other carb as well in case that's perished as well.
JK Part Number: J10848
OEM Part Number: 021-129-637/F

Setting up air-cooled carbs is a bit of an art. Have a look for Sarran's videos and the Ratwell web-site for an idea of what's involved.