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After taking the plunge and having new tine springs manufactured, it was time to fit them. Each sprung tine consists of the spring itself, two handed castings, a pivot shaft and the tine (Simar 0102). The two castings fit into either side of the spring with the tine sandwiched between them. The pivot shaft then passes through the whole lot and is secured at both ends by two 6mm diameter split pins. Six of these sprung tine assemblies are fitted to the miller sleeve castings (Simar 0103 & 4). Before fitting the miller sleeves, felt washers were slid over the driveshaft. Also, I made Nitrile rubber seals to fit between the miller sleeves and miller gearbox casing (Simar 0105). Originally, these would have been leather, but had long since rotted away. The miller sleeves are held in place by four 10 x 60mm roll pins, 2 per side (Simar 0106).
I had also managed to source suitable torsion springs for the wheel ratchet Red pawls, as the originals were missing. The new springs required some modifications before they could be fitted (Simar 0107), but this was reasonably straight forward using a vice and pliers. The Red pawls and springs were fitted to the wheel hubs and secured in place with a 4 x 25mm split pin (Simar 0108).
Another job requiring a new spring was the main gearbox breather (Simar 0109). The spring I used has a couple more additional coils than the original, but it’s uncompressed length, diameter and wire size were a match. It was the closest match available off the shelf without going to the expense of having a special made. Please note that when assembling the breather, the order of the parts shown in the manual is incorrect (my photo also shows the incorrect order). The breather disc should be fitted into the disc guide, with the spring fitted next, so the spring can hold the disc in it’s seat. This stops dirt from entering the gearbox, but excess pressure inside the gearbox can unseat the disc. The breather disc guide is held at the top of the breather body by a 5 x 30mm taper pin. The breather was then screwed into the main gearbox, complete with a new paper gasket (Simar 0110). The hole the breather is screwed into is also the oil fill point for the main gearbox.Attachments:
