Unknown adjustment on CAV DPA

Hi folks,

Wondering if you could help me with something.

I have a Massey 254 and am servicing the injector pump. I've done a few of these in the past on a few old Fords etc., but this one has an adjustment that I haven't seen before.

Hoping you can help me identify what exactly it does, and perhaps offer some advice regarding adjusting it if necessary.

Cheers,

Rob.
 

cvphoto29521.jpg
 
Thanks for the reply and sorry for taking so long to respond!

I wonder though, how this affects the road speed as there doesn't appear to be anything linking it with the drive-train at final drive speed...?

Obviously not a show-stopper if it is incorrectly adjusted, but it does have me curious.

Again, thanks for the info. :)


Rob.
 

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