LPG and Carbs - Land Rover

Hi

I have a 1983 Land Rover 110 V8 CSW, which I predominantly run on LPG - in
fact I hardly ever use petrol. Yesterday I had to switch to petrol for the
first time in probably 6 months or more and soon started to smell petrol.
On investigation I found petrol slowly dripping from the bottom of one carb
and quickly dripping from the other - in fact I had a small (but growing)
pool accumulating in the manifold webs. I knew there was an LPG garage
about 10 miles further on, so I ended up driving about 3 miles, mopping up
the fuel, driving on etc, until I could refill with gas.

I suspect that the seals in the carbs had dried out and shrunk, thus
allowing the leakage (flood), and guess it might have been a good idea to
run on petrol a bit more regularly - I don't know if anyone else has had the
same problem?

Turning to the immediate problem, how difficult is it to replace the seals
in an LR carb? At first sight I think I might have to remove the carbs from
the manifold and it might turn into quite a big job - your advice much
appreciated.

Regards

Neil

Neil Cummins <[email protected]> uttered summat worrerz funny
about:
> Hi
>
> I have a 1983 Land Rover 110 V8 CSW, which I predominantly run on LPG
> - in fact I hardly ever use petrol. Yesterday I had to switch to
> petrol for the first time in probably 6 months or more and soon
> started to smell petrol. On investigation I found petrol slowly
> dripping from the bottom of one carb and quickly dripping from the
> other - in fact I had a small (but growing) pool accumulating in the
> manifold webs. I knew there was an LPG garage about 10 miles further
> on, so I ended up driving about 3 miles, mopping up the fuel, driving
> on etc, until I could refill with gas.
> I suspect that the seals in the carbs had dried out and shrunk, thus
> allowing the leakage (flood), and guess it might have been a good
> idea to run on petrol a bit more regularly - I don't know if anyone
> else has had the same problem?
>
> Turning to the immediate problem, how difficult is it to replace the
> seals in an LR carb? At first sight I think I might have to remove
> the carbs from the manifold and it might turn into quite a big job -
> your advice much appreciated.
>
> Regards
>
> Neil

O rings may have perished, they all do that, What carbs have you got?

Also the needles will also wear quickly unless you have lifters fitted
although I'm not aware that this causes a leak such as yours.

I have the carbs on my 101 proffesionally rebuilt and have to say it was
worth evey penny after many hours tinkering previously.

Also before you attempt to remove the carbs you may find it worth while
cutting a 13mm spanner in half to allow better access, certainly helps on
the 101 v8's.

Lee
--
www.lrproject.com
Reaching the parts other Landrover restorers can't reach - JLo makes new
home in the USA.
Percy IIa - two Engines to the mile, awaits a new chassis.
Morph - He's "living the dream".

"Lee_D" <[email protected]> wrote in message
news:[email protected]...
> Neil Cummins <[email protected]> uttered summat worrerz funny
> about:
>> Hi
>>
>> I have a 1983 Land Rover 110 V8 CSW, which I predominantly run on LPG
>> - in fact I hardly ever use petrol. Yesterday I had to switch to
>> petrol for the first time in probably 6 months or more and soon
>> started to smell petrol. On investigation I found petrol slowly
>> dripping from the bottom of one carb and quickly dripping from the
>> other - in fact I had a small (but growing) pool accumulating in the
>> manifold webs. I knew there was an LPG garage about 10 miles further
>> on, so I ended up driving about 3 miles, mopping up the fuel, driving
>> on etc, until I could refill with gas.
>> I suspect that the seals in the carbs had dried out and shrunk, thus
>> allowing the leakage (flood), and guess it might have been a good
>> idea to run on petrol a bit more regularly - I don't know if anyone
>> else has had the same problem?

Very common I'm afraid, mainly the float needle jets not seating correctly
to form a seal, due to dust and dirt etc that seems to accumulate in carbs
when they are "dry" for long periods of time.

>> Turning to the immediate problem, how difficult is it to replace the
>> seals in an LR carb? At first sight I think I might have to remove
>> the carbs from the manifold and it might turn into quite a big job -
>> your advice much appreciated.

Yep, remove carbs and fully strip and clean. procedure is identical for both
SU and Stromberg carbs, reset the float heights accurately (Haynes book of
lies shows how to do this) after a thorough cleaning out. No idle,
auxiliary, secondary or emulsion jets to worry about when cleaning, just one
metering jet and a tapered metering needle controls the fuelling, and of
course the fuel inlet (float) needle jet.

> O rings may have perished, they all do that, What carbs have you got?
>
> Also the needles will also wear quickly unless you have lifters fitted
> although I'm not aware that this causes a leak such as yours.

Won't cause the leak, but severe needle and jet wear will be visible, more
than likely.

> I have the carbs on my 101 proffesionally rebuilt and have to say it was
> worth evey penny after many hours tinkering previously.
>
> Also before you attempt to remove the carbs you may find it worth while
> cutting a 13mm spanner in half to allow better access, certainly helps on
> the 101 v8's.

Almost an essential item when removing/fitting carbs on a v8!
Badger.

Neil Cummins wrote:
> Hi
>
> I have a 1983 Land Rover 110 V8 CSW, which I predominantly run on LPG
> - in fact I hardly ever use petrol. Yesterday I had to switch to
> petrol for the first time in probably 6 months or more and soon
> started to smell petrol. On investigation I found petrol slowly
> dripping from the bottom of one carb and quickly dripping from the
> other - in fact I had a small (but growing) pool accumulating in the
> manifold webs. I knew there was an LPG garage about 10 miles further
> on, so I ended up driving about 3 miles, mopping up the fuel, driving
> on etc, until I could refill with gas.
> I suspect that the seals in the carbs had dried out and shrunk, thus
> allowing the leakage (flood), and guess it might have been a good
> idea to run on petrol a bit more regularly - I don't know if anyone
> else has had the same problem?
>
> Turning to the immediate problem, how difficult is it to replace the
> seals in an LR carb? At first sight I think I might have to remove
> the carbs from the manifold and it might turn into quite a big job -
> your advice much appreciated.
>
> Regards
>
> Neil

Suspect it might be the floats are stuck and nothing to do with seals, come to
that what seals?

--
"He who says it cannot be done is advised not to interrupt her doing
it."

If at first you don't succeed,
maybe skydiving's not for you!

On Sun, 26 Mar 2006 18:06:01 GMT, "GbH" <[email protected]>
wrote:

>
>Suspect it might be the floats are stuck and nothing to do with seals, come to
>that what seals?

I was told to beware of the floats banging up and down when their
bowls are empty because they might hole themselves, it's not a problem
I have suffered yet and I think Neil and I converted at about the same
time.

AJH

"AJH" <[email protected]> wrote in message
news:[email protected]...
> On Sun, 26 Mar 2006 18:06:01 GMT, "GbH" <[email protected]>
> wrote:
>
>>
>>Suspect it might be the floats are stuck and nothing to do with seals,
>>come to
>>that what seals?
>
> I was told to beware of the floats banging up and down when their
> bowls are empty because they might hole themselves, it's not a problem
> I have suffered yet and I think Neil and I converted at about the same
> time.
>
> AJH
>
Thanks all - I'll let you know what the result is.

Regards

Neil