what's a watsley

It is the connecting linkages between the feebulator and the hydrophobic upper lining inside a diesel fuell pump. It is basically designed to draw moisture out of the inline rack system that drives the pressure solenoid that lkeeps fuel flow consistent. They are common in early forward control Land Drovers and some Isuzu trucks under 8 ton. I think that the correct spelling is Vattssleigh although I am not shure of the original German spelling.

mmmm.

a fuel system pressure controller and dehumidifier indeed?

perhaps you meant Watts linkage?

Watts Linkage does the same thing as a Panhard Bar (controls the sideways movement of the rear end) but it moves the rear end straight up and down instead of in an arc like a Panhard Bar. The narrower the frame rails the more Watts Linkage is needed.

from info on the PT Cruiser:

The Watts linkage is used for lateral location of the axle and includes two transverse links pivoting on the body structure at the outer end and on a third link at the inboard ends. The third link pivots at its center on the axle, moving in a vertical plane relative to the body. This system controls lateral movement of the axle. Compared to the more commonly used track bar, the Watts linkage:

Reduces lateral suspension movement relative to the body to help minimize wheel well size
Induces less side-to-side variation in handling
Distributes transverse loads through two links with four bushings - rather than one link with two bushings which substantially increases lateral stiffness for more precise handling. This also reduces body structural stiffness requirements and allows the use of softer bushings, limiting the transmission of road noise and harshness

Ken

A Watts link is the only type of link, when constructed correctly, that can allow an axle to go through its range of motion without skewing it out of alignment. It gives you better control than a Panhard Bar and is perfect for coil spring or coil-over rear suspension.

I think you are right with the watts link. I heard about a "watsley" on Bathurst, where a car was damaged to it's rear, but i think the pronounciation was rushed by the commentator. I don't think it was going very far after that! The original reply about the Vattsliegh or however it is spelt was a good try, and sparked some great posts. This forum should have a "best of" section!