So, my frame is at the engineers to be sorted, cant do anything now so had a look yesterday at the fitting of the crank with the dummy bearing, makes life a lot easier using those(thanks Zapper) and had a look at fitting the DRT studs and cylinder.
Crank tried in, fits nice, these casings are Nicks old ones Worb225 and he had them machined and welded by Reedspeed, they have done an excellent job whoever their machinist is.
Crank dummy bearing on.
Tried the cylinder on.
Wouldnt seat all the way, this Evolution new top end must be slightly different base wise, just needs casing trimming down a bit, no problem as its nowhere near the sealing part, chuffed with it all up to now, I like the lengthened and strenghthened stud parts, really strong and good fixings. I'm going to have a look at working out the port timings next.
Hurray excellent Eeeeeean its coming together nicely, as for your earlie r questions with regards to my tyre size im useing 90/90/10 i didnt want to go the 3.50 route the 3.00 was way to small...i did try a a 3.50 ran mm's away from header manifold keep it up
Just waiting on a bearing set then I can start puting the motor together ;D ;D Frame still at the engineers, hes really busy so no pics of that yet so I had a go at putting the tt92 on that sip rim today------- disaster darling ;D
Had a go at fitting the clutch today, first I had to grind the primary gear to fit the DRT repair uprated springs to fit to the Hartz 4 basket
Springs are much bigger than standard!
Takes a lot of time as gear wheels are hardened, good job I have Tungsten burrs ;D
Took a few hours.
Next I loctited together, then realised as I got the Hartz4 second hand with no instructions, this was not going to go into the casing all fixed together and realised you need to put the primary together in situ, its a learning curve!
Basket fitted to primary.
Next to fit the spider and plates setup, and again realised you have to do all this seperately too and the puller also doubles as a compressor to do this, clever trickery making the most of the space.
A little grinding paste to fit.
Clutch in phew! not a lot of room!
I then tried the cover with one of the DRT spacers and I only have a standard clutch pressure plate at the moment till the XL2 one comes ;D but it seems to clear ok with the 1mm spacer, wont know which is needed yet though. The crank will need to be dry fitted again to try the primary small drive cog, see if I can get it on and off with the clutch in situ, but I'm thinking you need to strip it all to do this as with standard or XL2 clutch baskets theres a cut out section to line up to enable this but the Hartz4 doesnt have this, anyone shed some light on this for me I'll be ever so grateful lol, but I'm going to try it anyway. Gearbox to be done next but I'm happy with this clutch its proper trick and well thought out, the thing I really like about it is its held together with so many screws and not just a big circlip as standard, seems to give peace of mind Iain.
Hi Tony, I've no idea really, just the price was right for me as I only paid £160 shipped from USA second hand with a spare set of plates, these are new for around £325, these are supposed to be able to handle 30bhp and I was told that its pretty much a bullet proof type clutch by someone who knows the bloke that makes them ;D I dont know of any advantages over either clutch kit as I have absolutely no experience of any, but this seems to go together like a hand in glove, its quality machine workmanship and once I figured out how it goes together and in which order to fit the thing it seems pretty straight forward, my only concern is to change the gearing ie the small primary drive it looks like I might have to completely strip the basket off the primary too as there is no larger slot to line up to give room to get the small cog on or off, but I'm going to refit the crank and have a go at this just to see if it can be done What kind of problems have you heard people have had with them?