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

Fri Aug 17 04:06:34 BST 2007

M'lud, I offer in evidence:
1.  Microfiche with reference to engine numbered
suffix C inwards:
Float - part number 605320

2.  Parts book RTC 9021 A dated Sept 1974, page 26-46
Float - part number 605320

Eric

--- Dirk Burrowes <dirk at vy-tek.com> wrote:

> 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
> 
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> 
> [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,
> 
> I recently had to purchase a new battery. Not
> because my old one was worn
> out, but because it had been in and out of the car
> so many times to be
> charged (too much sitting in the garage and not
> enough driving), that the
> constant removing of the negative terminal had made
> the lead post turn into
> a conical shape. As a result, tightening the
> negative terminal meant that
> the terminal climbed up the post and off the top!
> 
> Anyway, why shouldn't I charge the battery in the
> car and leave the positive
> and negative terminals connected. Is this a
> potentially dangerous thing to
> do, and is there any danger of damaging the modern
> radio/cd player that I
> have fitted.
> 
> For info, my new battery is of the fully sealed
> variety and is mounted in
> the boot.
> 
> Many thanks,
> Brian.
> 
> 
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