I have a significant oil leak from the pinion shaft as it emerges from the front of the diff casing. Otherwise, the diff seems fine. I am contemplating replacing the current cap with the modified type from Moss/FTFU that contains a modern-ish rubber lip seal. Has anyone done this with the rear axle ...

This is from the Scientific Publishing Manual. I have never dismantled a TD pump but, if the holes you are referring to are the one(s) visible in both your photo and the drawing, are they not the route for the oil to pass out once the ball lifts, and then flow up through the spacer vanes?

I am no expert but if the chassis is 3903, this would appear to be a Sept/Oct 1947 car. If the chassis were 4551 or 4557 it would potentially be Jan 1948. This is from the Sherrell book. The difference between the engine and body number is 648 or 654 which is in the ballpark for the initial build.

I have no expertise in this matter but the Mike Sherrell book gives some information (and highlights the complications). To give an initial reference, the book states that the first chassis (0251) had engine number 883, a difference of 632. During production, engines were not necessarily used in num...

I have no personal knowledge but the Clausager book has a picture on p30 that shows it positioned just to the right of the tacho, with its bottom in approximate line with the bottom of the tach. It is the same location that the low petrol level light occupies in the TC (p47 and 48 in same book). Cla...

I agree with Duncan, the new OAT anticorrosion technology is not suited to our cars. Nor is it needed. We are fortunate in Australia in that the relevant Australian Standard for coolants, AS 2108, covers two types- those that contain ethylene glycol (antifreeze) and those that do not. Its title is E...

Thanks Steve. I guess I was rating "a splash" as less than the 10-20% range. Unlike modern engines, the XPAG does not have a lot of mixed metals, operating at high temperatures (such as alloy heads). It requires very little anti-corrosion help if soft water is used. So I would agree that you should ...

Thanks Steve. If you are adding the antifreeze for rust/corrosion protection then I don't think that a "splash" is enough. For a typical corrosion-inhibited antifreeze you need about a 25% treat rate to give protection. The inhibitor is consumed over time as it does its job and so suppliers typicall...

Steve, could you explain why you add a "splash of antifreeze" to the radiator water. Thanks.