I finally found time to tell of my recent adventures with Hitchcocks HP EFI UCE cams and my PC Internet went down so here's my story from cellphone without pictures.
Having done the recent piston, head, valve gear upgrades I decided to go for a set of HP cams. The only ones currently available were from Hitchcocks, and knowing they have an excellent reputation for quality, I did not hesitate to order a set.
Having never installed cams in an RE or any other motorcycle before, I first assembled them without setting the backlash. Luckily I had been communicating with gas house gorilla and he quickly set me straight on that.
We also checked valve to piston clearance using clay on the piston top and determined that i could remove one of the 3 layers of head gasket and still have clearance, bringing the compression ratio up to 10.3 : 1. I will definately be running on premium fuel from here on out!
So, I tore back into the motor, and using a popular 3 part you tube backlash video for reference, I set the backlash in one location for each gear, assembled the engine and found on start up that it made a really horrible gear mesh sound.
Like a Chevy starter motor without shims, or one of those gear drive timing chain replacement sets.
So, I tore the engine apart again. Upon inspection of the gears and their operation, I realized that there was a huge amount of excess metal on the ends of the gear teeth which was preventing them from moving in and out on the spindles. I also realized that the gears couldn't mesh properly with this metal interfereing.
Being in a hurry I used a hand file and removed quite a bit of the material. Thinking this was probably good enough, I put the cams back in, this time, checking the backlash on every tooth of both gears and setting it a little on the loose side, just to be safe.
I put the engine together again, fired up and... aaagghh!!! That horrible sound again!!!
So, I tore the engine apart again, bought a pretty nice little pencil (mini die) grinder cheap at Harbor freight, used a tiny HSS bit with cam gears in a vice, a bright light, and a high powered magnifying lens, to do a very meticulous cleaning and polishing of the cam gear tooth ends. They came out beautiful!
Once again, I re-assembled the engine, checked backlash at each gear tooth of each cam, put in new oil and filter for the second time, just for good measure fitted it up and....! $@#&**!!!!! That horrible sound!!! Aaaghh!!!
Finally after having done all I could to correct the obvious problem of excess material I had to accept that these cams either are really loud by nature or completely defective.
I contacted Hitchcocks, who told me they had a bike which they had just put 3 sets of cams into from the same batch as my cams, and they were all defective! They advised me to pull them out of my engine and return them for a full refund, or exchange in approximately 8 weeks or longer after they fix the problem and manufacture a new set.
I got them out, put my stock cams back in, and am sending the defective ones back for eventual exchange.
I do not blame Hitchcocks at all. These things happen every now and then. They are standing behind their product which was made by an outside vendor and they apologized profusely for the trouble I went through.
Obviously I would not have wanted to get a bad set of cams but the bright side is, I've learned a lot about RE cam installation and backlash setting, and just may qualify as an amateur expert of some sort!
With a little patience, I'll have my new cams in, hopefully before christmas, and in the mean time I have one bad ass Hindu Hot Rod with 10.3 : 1 compression and vastly improved fuel flow!