I am rebuilding a 1958 VH. A silly thing to do, for I do not have the knowledge (or ability?) and do not really know what I am doing! Nevertheless, it is nearly completed. Only nearly, for I have hit a problem which has brought my ignorance into the foreground. It concerns the oil pump and oilways.
I have had discussions with somebody at Draganfly. Whoever I spoke to was extremely helpful, but because I was not able to fully describe the problem over the phone, I am not much nearer to a solution.
Right here goes.
Referring to the inner case drawing in Section 15 of Draganfly’s Spare Parts Catalogue. There is an oilway identified on the drawing by the part numbers 2150-41 thru 2220-29. I believe there is a small spring which fits in this oilway. I have the spring and have also bought a new one (part no. 2154A-41) from Draganfly. However the new one is 1/16 inch longer than the old. I assume that this is simply a matter of age. I also bought a small plug (part no. 2150-41) 1/4 inch in diameter with two raised shoulders). This does not seem to fit anywhere at all. The ¼ inch bit seems to be correct, but wherever I try to put it, the raised shoulders stand proud from the surface. As there is a spring, I assume we have a non return-valve, which surely means there should be some ball bearings around, if so – where and what size?
The other worrying bit is that my inner timing case seems to have one more oilway than that shown on the drawing in the parts catalogue.
I would be very glad if there was somebody out there who could point me in the correct direction.
Many thanks
Peter Spratt
