[ROVERNET - UK] 2000 TC carb needle valves/ MGC

Slatskars slatskars at comcast.net
Wed Aug 15 22:23:25 BST 2007 

Fritz,

I have not heard of this one before. I know now that the HD-8 on P-5's have 
an extra little device, but this HS float difference is all new to me. I 
believe Eric, when he says that the floats are free on the TC units. It 
sounds very much like they used floats and associated needle assemblies from 
an H or HD type inside an HS float chamber??? Again I do not understand why, 
but then there are many things about the engineering of various British cars 
that I question. On of my favorite expressions when working on them is OTB, 
OTB (Only The British) would have designed it this way. As I mentioned to 
Eric in an earlier exchange, I will continue to pursue this and hope to 
actually see one of these buggers. I have cars with H, HS, HD and HIF types, 
but nothing that resembles what I am hearing about the 2000TC HS-8's.

Slats
----- Original Message ----- 
From: "Fritz Rauschenberg" <wfritz at mindspring.com>
To: <rovernet at lyris.ccdata.com>
Sent: Wednesday, August 15, 2007 1:19 PM
Subject: Re: [ROVERNET - UK] 2000 TC carb needle valves/ MGC


> Hi Guys,
> I'm getting in a bit late on this but see if this has been mentioned B4. I
> have always heard, and I think Joe Curto was one who said it, that the SU
> carbs on Rovers were a bit different than any other SU's. That may be the
> reason for the "hinged float" discrepancy. Maybe??
> Fritz Rauschenberg
> Atlanta
>
> Fritz Rauschenberg
> wfritz at mindspring.com
> EarthLink Revolves Around You.
>
>
>> [Original Message]
>> From: Slatskars <slatskars at comcast.net>
>> To: <rovernet at lyris.ccdata.com>
>> Date: 8/15/2007 5:09:56 PM
>> Subject: Re: [ROVERNET - UK] 2000 TC carb needle valves/ MGC
>>
>> Eric,
>>
>> That picture from the link is of a standard HS type. The float is not
> free
>> as in an H or HD type. I will continue my research into this odd
> situation
>> of an HS with a free (unattached) float with a couple of local experts.
>>
>> Slats
>> ----- Original Message ----- 
>> From: "Eric Russell" <p6rovers at yahoo.com>
>> To: <rovernet at lyris.ccdata.com>
>> Sent: Wednesday, August 15, 2007 8:16 AM
>> Subject: Re: [ROVERNET - UK] 2000 TC carb needle valves/ MGC
>>
>>
>> > Slats,
>> > Here is a link to a Rover 2000 SC carb which I had
>> > more readily available for a picture.
>> >
>> > It is an AUD 267
>> >
>> > Eric
>> >
>> > Link:  <http://websrus.ca/SU-single-carb.jpg>
>> >
>> >
>> >
>> > --- Slatskars <slatskars at comcast.net> wrote:
>> >
>> >> Thanks Eric,
>> >>
>> >> That is one that is not in the SU Workshop Manual.
>> >> Very strange arrangement,
>> >> possible but strange. I will now have to look at an
>> >> MGC set up, to see if
>> >> they are also different from other HS carbs. We have
>> >> a few MGC's in our Club
>> >> T-MG group. My curiosity in really up now. I thought
>> >> that I had every
>> >> configuration available in my fleet.
>> >>
>> >> Slats
>> >> ----- Original Message ----- 
>> >> From: "Eric Russell" <p6rovers at yahoo.com>
>> >> To: <rovernet at lyris.ccdata.com>
>> >> Sent: Tuesday, August 14, 2007 10:39 PM
>> >> Subject: Re: [ROVERNET - UK] 2000 TC carb needle
>> >> valves/ MGC
>> >>
>> >>
>> >> > Based upon cars I had, cars I dismantled, and
>> >> spare
>> >> > parts that came with Rover 2000s, I can note that
>> >> my
>> >> > HS carbs from a Rover 2000 SC had a white nylon
>> >> float
>> >> > hinged to the top which activated a needle valve
>> >> to
>> >> > regulate the petrol flow. A piece of metal was
>> >> > attached to the float and activated the valve.
>> >> >
>> >> > My 2000 TC cars with HS 8 carbs had a brass float
>> >> > which rose and fell unattached to the top lid.
>> >> They
>> >> > also had a brass needle.  A piece of metal pivoted
>> >> > from the top, was activated by the floating brass
>> >> > "float" and the metal in turn operated the brass
>> >> > valve.
>> >> >
>> >> > Eric
>> >> >
>> >> > --- Slatskars <slatskars at comcast.net> wrote:
>> >> >
>> >> >> I wonder if you may have the wrong type of float
>> >> >> bowl lids on your
>> >> >> carburetors. The HS types have a hinged float.
>> >> The
>> >> >> float chamber also has a
>> >> >> small plastic line out of the bottom that is part
>> >> of
>> >> >> the primary jet
>> >> >> assembly. This is the most obvious identification
>> >> >> feature of the HS type.
>> >> >> Cancel that thought. The HS has three screws
>> >> holding
>> >> >> on the top, whereas the
>> >> >> H and HD are held on with a single banjo fitting
>> >> >> down the center. I guess
>> >> >> that it would be possible to simply install the
>> >> free
>> >> >> floating floats from an
>> >> >> H or HD into the HS float chamber and substitute
>> >> the
>> >> >> pivot and needle
>> >> >> assembly also, rather than use the proper hinged
>> >> >> float. However, I cannot
>> >> >> imagine why someone would do that??? If that is
>> >> the
>> >> >> situation, it should be
>> >> >> relatively easy to restore then to the proper HS
>> >> >> type of floats and float
>> >> >> needle mechanisms.
>> >> >>
>> >> >> Slats
>> >> >> ----- Original Message ----- 
>> >> >> From: "Nathan Obuch" <nathanobuch at yahoo.com>
>> >> >> To: <rovernet at lyris.ccdata.com>
>> >> >> Sent: Tuesday, August 14, 2007 7:22 PM
>> >> >> Subject: [ROVERNET - UK] 2000 TC carb needle
>> >> valves/
>> >> >> MGC
>> >> >>
>> >> >>
>> >> >> > I'm still a bit confused.
>> >> >> >
>> >> >> > I have looked at the pictures of the HD8s and
>> >> can
>> >> >> > definitely say that's not what is on my car.
>> >> >> >
>> >> >> > The picture of HS8s matches what I have on my
>> >> car,
>> >> >> > which also corellates to the tags on the carbs
>> >> >> (AUD
>> >> >> > 254 front & rear) as mentioned in the Burlen
>> >> fuel
>> >> >> > systems page.
>> >> >> >
>> >> >> > The floats are definitely completely free
>> >> floating
>> >> >> and
>> >> >> > act on a lever which is attached to a pin at
>> >> the
>> >> >> top
>> >> >> > of the float bowl lids.
>> >> >> >
>> >> >> > I think I might just order the MGC needle
>> >> valves
>> >> >> and
>> >> >> > see what happens. I'm sick of being dinged with
>> >> >> > customs processing fees for minor parts orders
>> >> >> from
>> >> >> > Canada/ overseas...
>> >> >> >
>> >> >> > Thanks to all who took the time to reply!
>> >> >> >
>> >> >> > Nathan
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >>
>> >> >
>> >>
>> >
> ____________________________________________________________________________
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>> >>
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