2.25 12V Military full engine job

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Light ream and they're lovely.

Good evening all.

Slight mystery. I have the oil pump in and currently nipped up, the camshaft is in and the gear drive shaft for the oil pump and distributor is in with the spacer that engages the slot in the shaft and key on the distributor is in (and correctly aligned). Now, if I drop the distributor in with a gasket the key doesn't engage with the slot in the slotted spacer. If I take the gasket out it's just engaged, but sloppy.

As far as I can see, the driven gear is held 'up' by the oil pump's splined shaft - and it can't have contracted while it was laid on the bench... I have a gasket between the block and the flange on the oil pipe, but it's hardly thick enough to make a difference.

I've looked at the parts book and can't see anything I'm missing, but should there be a spacer in the pump to push the shaft higher perhaps?

If not I can only think that I've wrongly assembled the distributor/clamp/plate and need to look at that again.

I need @jamesmartin here...
No mistake on distributor assembly.

Either I've got something missing from under the oil pump drive shaft (ball, spacer, spring?) that's supposed to push it upwards, or there's something odd about the distributor I have.

I've measured and the distributor drive is only engaging the drive dog by about a millimetre (with no gasket under the disttdistri). I can see that the cam driven gear will rise up as it's turned by the camshaft, but that can't be how it's meant to work?

skew gear is held in place by a grub screw behind oil filter head ,you need to remove that to access the grub screw, skew gear it timed to cam and as skew rotates as it is pushed down in to place you will need to turn the bush by a scriber or similar to align the hole for grub screw, between skew gear and dizzy is a spacer

Well. You star. One of my next jobs was to find out what that grub screw was for... it had got separated from the pump and distributor on the bench.

I'd given up on it being finished by the end of the week, it may actually be done by this evening.

Thanks James.

Just found an odd thing.

Should an (RTC3184?) oil filter fit snugly against the seat in the housing without assistance?

Two reasons for the question.

One is that I have a 2" long spring on the long bolt that doesn't seem to do anything. The parts book doesn't show one. It doesn't put pressure on the filter because the hole in it is about an inch in diameter, the spring half that.

Second, if I assemble can, filter and housing the filter is free to rattle up and down if you shake the whole thing.

Could it be the wrong filter in the right box? And if so, is the spring there to help seat it before doing the thing up - because it certainly isn't strong enough to deal with oil pressure? Yes, I should have taken a picture....