Volvo Owners Club Forum

Volvo Owners Club Forum (
-   200 Series Articles (
-   -   Brake Servo Hose (

Paul240480 Jun 22nd, 2011 18:22

Brake Servo Hose
Some of you will recall Chesters6 pointing out that my brake servo hose was looking a tad past it's best in this photo (taken for another thread):

The perished looking one to the right of the pic attached to the air intake manifold.
Well at long last I have received a new pipe, and yes with the two side by side, the old is very tatty!
My daughter collected it for me on her way home from work, so it has literally just
arrived here.
It is an original piece from Pemzec Volvo in Vannes at 24,76 and is long enough to make two, so will have a piece for back up should I ever need it.
I shall fit it tomorrow and will snap a pic or two just to show how bad the old one is.
If these pipes do fail, then brakes fail too, or at best braking efficiency is majorly reduced.
I really hadn't noticed my one perishing, so if you haven't noticed yours, do have a peek next time you are tinkering:thumbs_up:

chesters6 Jun 22nd, 2011 19:28

Its not so much the outside but it would be interesting before you bin the old one to take a peek at the inside:thumbs_up:

Paul240480 Jun 22nd, 2011 20:37


Originally Posted by chesters6 (Post 932829)
Its not so much the outside but it would be interesting before you bin the old one to take a peek at the inside:thumbs_up:

Yes, me too, will do!

Clifford Pope Jun 22nd, 2011 20:54

While you have the hose disconnected it would be worth blowing down it into the servo to check that the non return valve is working. If it leaks it won't hold vacuum properly.
Finally when you start up, keep your foot on the brake pedal and it should rise as the vacuum builds up. That means the servo is working properly.

Paul240480 Jun 23rd, 2011 09:45

Right, job done:
Another pic of my worn hose:

I first removed the air intake manifold end of the pipe. Just release the spring clip, slide it back and then twist and pull. I then blew into it S per Cliffords advice. My non-return valve is solid :thumbs_up:

The old pipe, although dry and perished externally looked okay internally.
Still flexing, but compared to the new one very dry and 'stiff'
Finally the new one in place. I replaced the old spring clips with new jubilee type ones.
Note the cable ties on the accelerator cable to help support it. I used the old ones by slipping the old pipe out and the new in.
Foot on the pedal, again as per Cliffords post whilst starting confirmed all is well with the servo.
Another job by ticked off of the list.

chesters6 Jun 23rd, 2011 12:16

mine was the opposite fine on the outside but almost closed on the inside right by the metal pipe it connects to ,i presume the vibration hastened its demise

Paul240480 Jun 23rd, 2011 17:03

I've asked for this to be put over to articles. Not so much for the how too side of things ( although Cliffords tips make it worthwhile) as it is quite simple. But thought it worthy of 'articles' even it only serves as a reminder to us all:thumbs_up:

Edit:Link to original thread

All times are GMT +1. The time now is 02:14.

Powered by vBulletin
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.