[ROVERNET - UK] RE: rovernet Digest, Vol 57, Issue 37

Fri Aug 17 15:59:57 BST 2007

The plastic float came off another carb but was
cleaner than the onle I posted earlier.

In the second picture, the original float is sitting
in the chamber with a spare (but shiny) sitting
alongside.

Eric
PS.  In sumamry:
Of the carbs and parts cars that I handled:
*single car Rovers had a white nylon float hinged on
one side (the HS series)
*Twin carb HS8 Rovers had brass floats one of whom
developed a fatgue crack and sunk to the bottom of the
chamber on a road trip to Washington state.  This was
repaired with solder in Peter Miller's garage.

--- Slatskars <slatskars at comcast.net> wrote:

> Dirk,
> 
> I think that you are referring to the plastic float
> shown off to the side 
> and not the metal one nearest the carb. I talked to
> my second expert today 
> about that plus a very well qualified parts guy.
> they concur with Eric's 
> photo. I don't know why he had the normal HS plastic
> float off to the side.
> 
> Slats
> ----- Original Message ----- 
> From: "Dirk Burrowes" <dirk at vy-tek.com>
> To: <rovernet at lyris.ccdata.com>
> Sent: Thursday, August 16, 2007 7:03 PM
> Subject: [ROVERNET - UK] RE: rovernet Digest, Vol
> 57, Issue 37
> 
> 
> > Eric,
> >
> > The float you are showing has been retrofitted to
> the bowl. This looks 
> > like
> > a float from a smaller and newer carb like a HS2
> the float bowls are the
> > same size but the fuel pressure is usually
> different. Also is the needle
> > valve plastic? If so I had a terrible problem with
> the overflow and found
> > that when I changed the needle to a brass non
> spring loaded tip it was 
> > like
> > magic NO more gas weeping.
> >
> > My 2 cents
> > Dirk
> >
> > -----Original Message-----
> > From: rovernet-bounces at lyris.ccdata.com
> > [mailto:rovernet-bounces at lyris.ccdata.com] On
> Behalf Of
> > rovernet-request at lyris.ccdata.com
> > Sent: Thursday, August 16, 2007 5:53 PM
> > To: rovernet at lyris.ccdata.com
> > Subject: rovernet Digest, Vol 57, Issue 37
> >
> > Send rovernet mailing list submissions to
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> > "Re: Contents of rovernet digest..."
> >
> >
> > [ROVERNET-UK]
> >
> > Today's Topics:
> >
> >   1. RE:  Battery Charging, in or out of the car
> (Warwick Brooks)
> >   2. RE:  Battery Charging, in or out of the car
> (Warwick Brooks)
> >   3. Re:  2000 TC carb needle valves/ MGC
> (Slatskars)
> >   4. RE:  P6B Sunroof and 700R4 conversion (Peter
> Mitchell)
> >   5. Re:   carb question (Ben Rodgers)
> >   6.  P6 ROC Forum (Eric Russell)
> >   7. Re:   carb question (Slatskars)
> >   8. Re:  Battery Charging, in or out of the car
> (Slatskars)
> >   9. Re:  Battery Charging, in or out of the car
> (David Read)
> >
> >
> >
>
----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Thu, 16 Aug 2007 21:58:20 +1000
> > From: "Warwick Brooks" <warwick at regscom.com.au>
> > Subject: RE: [ROVERNET - UK] Battery Charging, in
> or out of the car
> > To: <brian.jane at eggconnect.net>,
> <rovernet at lyris.ccdata.com>
> > Message-ID:
> >
> >
>
<!&!AAAAAAAAAAAYAAAAAAAAAN65lvB+yGZBsyfX1fj57PzCgAAAEAAAAAniZnTqeBtPhjvGn0CN
> > uosBAAAAAA==@regscom.com.au>
> >
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Brian,
> >
> > Charging the battery with a battery charger
> without disconnecting the
> > negative terminal (earthed terminal) is okay for a
> car with a generator 
> > but
> > if you have an alternator it can damage the diodes
> in the alternator's
> > rectifier (the thing that converts the AC output
> to DC).  There shouldn't 
> > be
> > any risk of damage to the radio.
> >
> > There is no danger, just risk of damage to the
> diodes from inadvertent
> > voltage spikes.  On modern cars with computers
> controlling various 
> > functions
> > the potential damage extends to these too.
> >
> > You could fit an isolator switch in the earth lead
> close to the battery 
> > and
> > use that to disconnect it from the rest of the car
> while charging.
> >
> > When charging, a lead-acid battery releases
> hydrogen which is of course
> > highly explosive.  Hydrogen released from a
> battery being charged under 
> > the
> > bonnet can freely escape whether the car is being
> driven or not.  A 
> > battery
> > in the boot however is a different story.  If car
> is being driven and the
> > sealed battery box cover is in place then the gas
> will accumulate inside 
> > the
> > cover until it fills it (from the top down) and is
> pushed out through the
> > drain hole in the floor.  There isn't much free
> space in the battery box -
> > it's mostly full of battery.
> >
> > A fully-sealed battery still produces hydrogen but
> is fitted with vent
> > valves to prevent pressure build-up.  Modern
> battery design has reduced
> > gassing somewhat but t still happens, particularly
> if you don't have a
> > regulated battery charger and you over do it a
> bit.  But having said that, 
> > a
> > good controlled over-charge occasionally is good
> for the battery's
> > longevity.
> >
> > If the cover is not fitted or is not sealed the
> gas escapes into the boot
> > where it will rise extremely rapidly to the
> highest point and escape 
> > through
> > the nearest gap or porous material.  If you don't
> have an isolator switch
> > fitted which gives you access to a battery
> connection point outside the
> > battery box you will have the cover off and so the
> gas escapes into the
> > boot.  It is extremely unlikely that enough
> hydrogen could accumulate in 
> > the
> > boot to be of any danger.  Trying to contain
> hydrogen is like trying to
> > carry marbles in a string bag.  Nevertheless, I
> would charge a 
> > boot-mounted
> > battery with the boot lid open.
> >
> > Regards,
> > Warwick
> >
> >
> >
> > -----Original Message-----
> > From: rovernet-bounces at lyris.ccdata.com
> > [mailto:rovernet-bounces at lyris.ccdata.com] On
> Behalf Of Brian Humphreys
> > Sent: Thursday, 16 August 2007 7:11 PM
> > To: rovernet at lyris.ccdata.com
> > Subject: [ROVERNET - UK] Battery Charging, in or
> out of the car
> >
> > All,
> 
=== message truncated ===

Webmaster of The Rover Car Club of Canada
Website:  http://www.roverclub.ca/
Webmaster of a variety of sites from:
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