How to improve MPG on old V8

Tom Woods wrote:
> On Mon, 01 May 2006 18:44:16 +0100, Dougal
> <DougalAThiskennel.free-online.co.uk> wrote:
>
>
>>You adjust the needle position relative to the piston - the adjuster is
>> accessible after you remove the damper/plug from the top of the
>>piston housing.
>>
>>A 'special' tool may be required to stop you rotating the piston at the
>>same time and damaging the diaphragm. The typical sort of thing usually
>>used can be viewed here:
>>http://www.motorcarsltd.com/item.wws?sku=IN100586
>
>
> adjuster is down at the bottom of the damper bit
>
> Its either a long allen key (the special part of the tool is a collar
> that holds it central). or alternatively there is a lump almost like a
> grain of rice down at the bottom of the damper hole and the tool turns
> that (a straight screwdriver with a cut in the centre works too)

Oooooooookay. So assuming I can find a suitable bit of metal to do the
turning, how do I know I've done the right thing? Presumably whilst the
engine is running, turn it one way until it starts to cough then back
off a little - but two at the same time? Never had a V8 before, only
2.25 petrol and diesel lumps.

TIA,
Stuart

On Mon, 01 May 2006 22:07:04 +0200, Srtgray <[email protected]>
wrote:

>Oooooooookay. So assuming I can find a suitable bit of metal to do the
>turning, how do I know I've done the right thing? Presumably whilst the
>engine is running, turn it one way until it starts to cough then back
>off a little - but two at the same time? Never had a V8 before, only
>2.25 petrol and diesel lumps.

It moves the needle up and down.

If you take the top of the carb and temporarily remove the
needle/diaphram assembly you can try turning it with it off the car
and watch the needle to see which way it moves when you turn it.

On my car its the same as your expect. Right-in, left out.. but if you
turn the one on my car too far in it falls off

You might be able to do it with the car running. Mine sometimes
stalled or wouldnt run with the damper cap removed.

I converted my car to gas to avoid having to adjust the carb any more