Very interesting, Art. Thanks for explaining that. I'd always kind of wondered why those long terminal contact nipples so now I know what's inside. John should note that the in-tank pump he's looking at on his '95 sending assembly is a full blown main pump and not a wimpy pre-pump. It may be of better design to reduce radio interference such as having a full metal jacket for shielding or less noisy contacts.

Just as an FYI to others here, although this tagged as a 240 post, I'll mention that the 940 NA engines were mostly all Regina (as were a few of the later 740s depending on market). Regina uses an in-tank main pump and no pre-pump. 940 turbos (and the 16-valve NA) were always LH 2.4, which previously used an in-tank pre-pump like the 740 and 240. In 1995, the 940 NA engine became LH 2.4 rather than Regina. Also in 1995, Volvo went with an in-tank main pump for both the NA and turbo, but a different pump than used with Regina (presumably working at a different pressure). The also went with a larger 73? litre fuel tank that required a longer barrel on the pickup assembly. That particular pickup assembly was trouble prone as I noted in my prior reply above. Also in that reply, I said there were inductive coils on the two internal rods in the later units, whereas I meant to say resistive coils.

And speaking of rear quarter panel antennas, even with the signal amplifier that Volvo used with the in-glass antennas found in the later 940 wagons, radio reception is notably weaker than with an external antenna. This signal amplifier is a mystery little black plastic box typically found zip tied to the tank filler neck at the back of the side storage well and gets its 12V power from what would be the antenna motor wire used in sedans. Volvo had previously tried using in-glass antennas in some of the later 140 windshields which provided similarly weaker reception as I well recall with mine. For wagons, given that the roof mounted antennas were perpetually exposed to being snapped off going into garages, I do prefer the in-glass antenna except when trying to get weaker radio signals in fringe reception areas.

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Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now