sd33 fuel adjustment

[georges80]

Hi Folks,
posted this in the MQ subforum but no response, so trying again in a hopefully more appropriate subforum

I have an 1980 MQ SD33 with an after market turbo. I've been considering increasing the fueling by a conservative amount but am at a loss regarding which screw/bolt (if any) on the pump (diesel kiki) sets the fuel quantity and which direction would it need to be turned.

tia,
george.

[Finly Owner]

Firstly why would you increase the fuelling? Secondly becareful as the SD33 can be given a shorter life by installing a turbo. As the SD33 has no oilers and less rings than the specificcally designed SD33T.

Tim

[georges80]

The turbo has been on the sd33 for at least 20 years now, so it appears to not be too much of a long term reliability issue

The reason for increasing the fuel is that I changed my mq from 24V to 12V several years ago. The 12v edic is a tiny bit different than the 24v version, the motor/lever/stroke biases the fuel to the cutoff direction so starves the engine of fuel. I've adjusted it as far as I can to be in the 'run' location, but it's marginal (or seems to be). If I bias it too much then the engine won't cut off, since the stroke isn't enough to move it fully into the stop.

So, I was hoping if I can just increase the fuel in the run position I'm at that I can get back to what I had with the 24V setup. That seemed an easier approach than trying to bend (trial and error) the edic control 'rod'.

I live/work in the US, so get back to oz once a year and then use the mq for camping trips for the month or so I'm over there. So, I don't have a lot of time to twiddle with things and was hoping there would be an easy tweak I can do.

cheers,
george.