[Mgs] Replacing a float

Charley & Peggy Robinson ccrobins at ktc.com
Fri Jun 30 09:58:48 MDT 2017


They aren't *that* fragile, Simon.  The pivot pins have a little bit of 
a knurled spot near one end.  you need to tap the pin out from the other 
end with a drift.

CR
On 6/29/2017 8:47 PM, Simon Matthews via Mgs wrote:
> Apparently, I need to be very careful. This car has the AUD 405 carbs,
> for which the front  float chamber lid is N/A at Moss.
>
> Anyone know of a source for these?
>
> Simon
>
> On Thu, Jun 29, 2017 at 5:57 AM, Richard Lindsay
> <richardolindsay at gmail.com> wrote:
>> Morning Simon, et al.,
>>
>> Use extreme care. On some carbs, the pin should exit only one direction.
>> Examine it closely. You didn't state whether your carb is an SU or a Z-S (or
>> Weber DGV) so I'm not going to guess. Generic thoughts follow.
>>
>> Independent of which carb, I use a pair of needle nose pliars and a couple
>> of drops of peneteating oil. Place one pliars tip on the hinge pin, the
>> other just behind the offending post pivot, and squeeze gently. Don't try to
>> remove it on the first try (unless it comes free). Now move to the other
>> pivot and try a gentle squeeze there. Any movement at all? Its bad news if
>> one of those hinge points breaks, and they are a bit fragile.
>>
>> Is one of the two 'posts' split? If so, that is the side that is supposed to
>> grip the pin. (Check me on this please.) Its also the more fragile post. As
>> I recall only - because I haven't had a pin stuck badly - that is the side
>> upon which one might start with the pliars. Do not try to release it's grip
>> by inserting a tool into the gap split. Its just cast aluminum and will
>> easily break.
>>
>> Good luck. This advice is only worth what you paid. But I do emphasize care.
>> These bits break easily and ruin the part if broken.
>>
>> -rick, with a pile of carbed cars
>>
>> PS: If a post does break, check e-bay for a used replacement float bowl
>> cover (if SU). I recently bought a pair of Z-S carbs on e-bay, to supply
>> parts to replace one cracked carb casting on a GT6. $100 later, an otherwise
>> big bucks problem was solved.
>>
>>
>> On Jun 28, 2017 10:15 PM, "Simon Matthews via Mgs" <mgs at autox.team.net>
>> wrote:
>>
>> I am trying to figure out how to replace a float in the carb on a '71 MGB.
>>
>> I can't get the hinge pin to come out. I have pulled on it, pushed on
>> it, but it won't move.
>>
>> Any ideas?
>>
>> Simon
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