From: Chris Whelan on 29 Jun 2010 14:09 On Tue, 29 Jun 2010 19:01:40 +0100, Mrcheerful wrote: [...] > fluid change > works out at about 30 p per week. (30 quid every two years) you could > save that by driving more economically!! The average driver should be able to save 75 quid a year by more economical driving! Chris -- Remove prejudice to reply.
From: Bob Dodds on 29 Jun 2010 15:32 On 29 June, 19:09, Chris Whelan <cawhe...(a)prejudicentlworld.com> wrote: > On Tue, 29 Jun 2010 19:01:40 +0100, Mrcheerful wrote: > > [...] > > > fluid change > > works out at about 30 p per week. (30 quid every two years) you could > > save that by driving more economically!! > > The average driver should be able to save 75 quid a year by more > economical driving! > > Chris > > -- > Remove prejudice to reply. I've heard and read about hydraulic fluid absorbing moisture from the air many times but the bit that always puzzles me is the hydraulics are a sealed system so how does the oil come into contact with the air/ moisture. Yes there is a breather in the top of of the reservoir but that has a rubber seal that only lifts slightly to account for pressure differentials. So again how does the oil in the pipes and pistons absorb this moisture? Bob
From: Paul on 29 Jun 2010 15:36 On 29/06/2010 20:32, Bob Dodds wrote: > On 29 June, 19:09, Chris Whelan<cawhe...(a)prejudicentlworld.com> > wrote: >> On Tue, 29 Jun 2010 19:01:40 +0100, Mrcheerful wrote: >> >> [...] >> >>> fluid change >>> works out at about 30 p per week. (30 quid every two years) you could >>> save that by driving more economically!! >> >> The average driver should be able to save 75 quid a year by more >> economical driving! >> >> Chris >> >> -- >> Remove prejudice to reply. > > I've heard and read about hydraulic fluid absorbing moisture from the > air many times but the bit that always puzzles me is the hydraulics > are a sealed system so how does the oil come into contact with the air/ > moisture. Yes there is a breather in the top of of the reservoir but > that has a rubber seal that only lifts slightly to account for > pressure differentials. So again how does the oil in the pipes and > pistons absorb this moisture? > > Bob And the stuff in the reservoir in theory never gets used, as its there to replace any lost by a leak...
From: Duncan Wood on 29 Jun 2010 16:12 On Tue, 29 Jun 2010 20:32:14 +0100, Bob Dodds <13013dodds(a)gmail.com> wrote: > On 29 June, 19:09, Chris Whelan <cawhe...(a)prejudicentlworld.com> > wrote: >> On Tue, 29 Jun 2010 19:01:40 +0100, Mrcheerful wrote: >> >> [...] >> >> > fluid change >> > works out at about 30 p per week. (30 quid every two years) you could >> > save that by driving more economically!! >> >> The average driver should be able to save 75 quid a year by more >> economical driving! >> >> Chris >> >> -- >> Remove prejudice to reply. > > I've heard and read about hydraulic fluid absorbing moisture from the > air many times but the bit that always puzzles me is the hydraulics > are a sealed system so how does the oil come into contact with the air/ > moisture. Yes there is a breather in the top of of the reservoir but > that has a rubber seal that only lifts slightly to account for > pressure differentials. So again how does the oil in the pipes and > pistons absorb this moisture? > > Bob It doesn't need very much and biderinal moving seals are rarely proof against both directions, every time something cools down there's a tiny negative pressure in the system. -- Duncan Wood
From: Duncan Wood on 29 Jun 2010 16:13 On Tue, 29 Jun 2010 20:36:04 +0100, Paul <paul23232(a)hotmail.com> wrote: > On 29/06/2010 20:32, Bob Dodds wrote: >> On 29 June, 19:09, Chris Whelan<cawhe...(a)prejudicentlworld.com> >> wrote: >>> On Tue, 29 Jun 2010 19:01:40 +0100, Mrcheerful wrote: >>> >>> [...] >>> >>>> fluid change >>>> works out at about 30 p per week. (30 quid every two years) you could >>>> save that by driving more economically!! >>> >>> The average driver should be able to save 75 quid a year by more >>> economical driving! >>> >>> Chris >>> >>> -- >>> Remove prejudice to reply. >> >> I've heard and read about hydraulic fluid absorbing moisture from the >> air many times but the bit that always puzzles me is the hydraulics >> are a sealed system so how does the oil come into contact with the air/ >> moisture. Yes there is a breather in the top of of the reservoir but >> that has a rubber seal that only lifts slightly to account for >> pressure differentials. So again how does the oil in the pipes and >> pistons absorb this moisture? >> >> Bob > > And the stuff in the reservoir in theory never gets used, as its there > to replace any lost by a leak... And the slack caused by the frictional bits wearing. -- Duncan Wood
First
|
Prev
|
Next
|
Last
Pages: 1 2 3 4 5 Prev: Car registration sequence that really shouldn't have been issued Next: Sticky wheel? |