Getting to know my new WNG I noticed the Girder spring top mount appears to have a separate 'top hat' where the mount fits into the upper girder yoke. My 1939 does not have this fitting. Looking at the 1941 WNG parts list and the VH list the mount is shown in both cases as 4612-32, no mention of this extra bit. So.... in the first of many questions which I feel sure will follow, is this part an original WNG addition?
Any kind of spacer there would affect the strength of the fitting D10/39 as it's tapered and fit's into D10/104. No W/NG's I've seen have such a spacer. It may have been fitted with a longer bolt to compensate for spring sag. That would subject the bolt to too much strain as you've lost the function if the papered fit in locating it. Nev
I haven't dismantled it but removed the bolt and the additional spacer looks as though its tapered at both ends, at the bottom to accept the original taper (D10/39) and at the top to fit into the top yoke (D10/104). It is a machined piece just for this purpose. It gives an increase of 1/2 inch.
has anyone got a parts book later than 1941, maybe its a later addition?
It's still weaker The additional spacer piece has a smaller outer dia than the top fitting has. I've never seen one fitted (but that doesn't mean it's not a part.) Is the spring the normal length?. If you are sure the lengthened bolt is high tensile or something decent and the tapers fit well, it's probably OK Nev
I had to fit a similar spacer to my VH as the front mudguard continually crashed into the girder fork bridge casting in spite of fitting a new OS spring. This was initially when used in trials trim but since our roads have deteriorated into their current state it is needed on the road as well.