Hi Anne, nice progress, in the pic below you can see the Devimead solution for lubrication of the Timing side bearing, the original pressure feed is blanked and a small cavity is created on the top side of the bearing boss allowing oil to drip into the bearing.
71 Devimead A65 750 56 Norbsa 68 Longstroke A65 Cagiva Raptor 650 MZ TS 250 The poster formerly known as Pod
hi Gavin, that is indeed a clever solution, being a needle roller the dripfeed is more than enough. As you can see in my earlier posts I used a scrub srew with a 1mm orifice. Same setup as with the old engine which lasted some 32 years/ 12000 miles. Regards A
been a while but this christmass the new engine is work in progress. solved the axiaal end float voodoo, made a new bearing out of some phosphor bronze. in the end it is just a 5,25 mm thick slab of bronze, milled to the correct dimensions. end float is now 0,04 mm
next jobs on the list are: 1. camshaft 2. the SRM-Oilpump 3. gearbox, pity the five-speed from Scotland isn't available yet so have to resort to the four-speed.
Nice to see your moving forward again. With regards to the 5 speed clusters, I've been surprised by the lack of interest, other than myself the other two which I know are in use, Mark Parker and Gavin Eisler are happy with the performance, of the 11 sets sold others don't really give you much feed back.
Hopefully your post can generate a little more interest, at the moment there are your self and four other who have shown an interest. I need to order a batch of ten, so if anyone is interested PM here or get in touch.
progress with the new engine is slow, very slow. with the upcoming winter season the objective is to have all components ready.
and now the camshaft. I purchased a 90-drg camshaft a couple of years ago. and it is not straight. although new the complaining period is long past and I'm having a new one made at the local camshaft-shop
It depends which cam you have. The standard 'spitfire' form is different.
I think this also alters depending on if its an original cam (to which I think your referring) or a remanufactured item, which I have seen lift heights and duration different to that of the factory item (and different to other makers versions of the same cam)
The SRM race cam as far as 360 degree motors are concerned is a good cam.