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g-mack

Member Since: 07 Jan 2014
Location: northumberland
Posts: 1967

servo hissing on switch off

whilst investigating a few problems today, i discovered my servo hisses when i turn engine off.
this i think is good news! ???? as my brakes have been OK but not great if applied hard. so im thinking the servo is letting in air (cracks common so i believe). Am i right in my diagnosis? should i order a new servo? My 109 thread

my youtube channel

19th May 2014 4:13pm

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

I have seen them crack on the outer metal skin , sure they crack round where the master cylinder bolts to servo or was it on the back of servo been a while since ive seen one do it , sure it was front

Last edited by munch90 on 19th May 2014 4:20pm. Edited 1 time in total

19th May 2014 4:19pm

gilarion

Member Since: 05 Dec 2013
Location: Wales
Posts: 5115

2007 Defender 90 Other CSW Trident Green

More than likely it is a cracked house, of course it could also be your diaphragm. Early servos you can get a repair kit for later ones sadly not so. Bend and squeeze the rubber hoses along their length to see if there any micro cracks

19th May 2014 4:20pm

g-mack

Member Since: 07 Jan 2014
Location: northumberland
Posts: 1967

just to answer my own thread, i changed the servo and th brakes are now awesome!! result

My 109 thread

my youtube channel

3rd Jun 2014 9:41pm

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