Fullauto cylinder head:amazing but be care with high lift ca

Hi Friends, before talking about the head, you must know the changes I already did in the pass on the engine from my road Seeley MK III:
Maney crankcases
Maney cylinder
Maney HC pistons
PW 3 camshaft
Black diamonds valves
Racing valves springs
Keihin FCR 35 carbs
Maney 2 in 1 exhaust system
Pazon ignition
3 phazes alternator
Dominator engineering crankshaft
R & R conrods
TTI 5 gear box
You will ask wat is the need of al this parts: I do 10.000 kms / year and I dont want to do this at 3.000 rpm, the Seeley is a sport bike and I wish to take 6.000 rpm without crankcases salade on the road
The second reason is that I like to open the engine every winter and try to improve the power and reability.
Now this winter I decide to buy a Fullauto head, Matt from CNW provide me the head, and before I put it on the engine, my friend Frank Jordens take the head to a flow bench specialist, the results are excelent, even with normal size valves.
So I open the engine, put new sleeves, new pistons, new followers and so on; I put new valves in the Fullauto head and start to rebuilt the engine, I put the head on the engine and check the squish band clearance with plasticine, still with the head on the engine I check also the coil band on the springs, on the exhaust valves no problems: 1.5 mm but on the inlet valves: zero!!
Very strange becouse i use the same camshaft and pushrods as before!
So i take the head off the engine and discover that I bend one of the inlet pushrods, and I dont feel it when I was turning the engine by hand, it was a litle hard at some points, but becouse you must squish the plasticine between pitons and head, in this case it is normal to have a hard point on the rotation of the engine.
Now the reason I find: with the high lift from the PW3 camshaft the pushroad side of the inlet rockers was toutching the casting of the head, so I grind a litle from the rocker and the job was OK.
So maibe good to know for those that wish to buy a fullauto head and use it with a high lift cam.
I rode already 500 kms with the head, not only a beautyfull pice of engneering, but also a lot of power, gread job!
The next step on the engine will be the Jim Smith followers kit
See you on the road
Yves

Re: Fullauto cylinder head:amazing but be care with high lif

Wow, I'm jealous yves...Ya gotta post a picture for us, I'd love to see what your bike looks like, it must be an awesome ride

Re: Fullauto cylinder head:amazing but be care with high lif

@yves norton:

Sounds like a nice build.

Can you provide some details on the alternator you used?

Re: Fullauto cylinder head:amazing but be care with high lif

Dances with Shrapnel said:

@yves norton:

Sounds like a nice build.

Can you provide some details on the alternator you used?

Click to expand...

He just described a naked super model and you asked what kind of socks she had. :mrgreen:

Re: Fullauto cylinder head:amazing but be care with high lif

swooshdave said:

Dances with Shrapnel said:

@yves norton:

Sounds like a nice build.

Can you provide some details on the alternator you used?

Click to expand...

He just described a naked super model and you asked what kind of socks she had. :mrgreen:

Click to expand...

Nice one Dave :lol: ; now that you put it that way I see how this looks so now I have to save myself here.

Holmeslice of NYCNorton fame is putting finishing touches on a new street fighter for me. The frame is a Roger Titchmarsh Seeley Mk2 with a light weight quick change rear spool hub. The engine is the Steve Maney based 1,007 cc with a TTIndustries Extra HD five speed with a kick start. The motor was built by Herb Becker with a Megacycle N480 cam, Jim Schmidtt rods and light weight pistons, Steve Maney exhaust, gargantuan ports, Norvil dual disk front end and a whole plethora of goodies and unmentionables.

Not wanting to take away from yves norton's post about his bike I thought to just ask about his alternator choice. I thought it appropriate to focus on the question which probably should have been through PM; we are faced with the same challenge/question on the 1,007cc build. We've looked at a trigger/self exciting crankshaft magneto & alternator from across the pond but not quite right for this application.

Re: Fullauto cylinder head:amazing but be care with high lif

that super model is knock kneed?

Re: Fullauto cylinder head:amazing but be care with high lif

A bike like that needs an alternator? After you have figured out how to get lightning into a can?!!

Re: Fullauto cylinder head:amazing but be care with high lif

Yves ya didn't state the size of your beastie. Your engine might not strain till 8000 rpm so 6000 should keep all the parts oil floated and wind cooling the power on tap. Its a bad joke around here about how often one must alter new parts to fit but its a given for hot rodder extremists. With ends of rockers essentially removed the pushrod puzzle is solved. How about a small battery to start and idle a bit on but have English bicycle friction wheel charger on the rear tire for the long run. What size belt primary will hold your new found power? Will you try wheelies? Best wishes creeping up on leaned over tire spin you'll have on tap.

Re: Fullauto cylinder head:amazing but be care with high lif

norton-seeley-t4799.html

HI? here are the pics of Yves' Norton, the Big Spender...........

Re: Fullauto cylinder head:amazing but be care with high lif

some more recent ones

https://lh4.googleusercontent.com/-.../AAAAAAAAABA/TEX6n9hDnBg/s480/norton850-2.jpg
https://lh3.googleusercontent.com/-RnhYlg58K_g/UUD1d2CXC4I/AAAAAAAAABY/oC1QZMbC1jM/s720/seeley.jpg

Re: Fullauto cylinder head:amazing but be care with high lif

Dances with Shrapnel said:

@yves norton:

Sounds like a nice build.

Can you provide some details on the alternator you used?

Click to expand...

Sparx

Re: Fullauto cylinder head:amazing but be care with high lif

acotrel said:

that super model is knock kneed?

Click to expand...

My english is not that good fo understand this, can you explain please

Re: Fullauto cylinder head:amazing but be care with high lif

hobot said:

Yves ya didn't state the size of your beastie. Your engine might not strain till 8000 rpm so 6000 should keep all the parts oil floated and wind cooling the power on tap. Its a bad joke around here about how often one must alter new parts to fit but its a given for hot rodder extremists. With ends of rockers essentially removed the pushrod puzzle is solved. How about a small battery to start and idle a bit on but have English bicycle friction wheel charger on the rear tire for the long run. What size belt primary will hold your new found power? Will you try wheelies? Best wishes creeping up on leaned over tire spin you'll have on tap.

Click to expand...

This is a 820 engine

Re: Fullauto cylinder head:amazing but be care with high lif

hobot said:

Yves ya didn't state the size of your beastie. Your engine might not strain till 8000 rpm so 6000 should keep all the parts oil floated and wind cooling the power on tap. Its a bad joke around here about how often one must alter new parts to fit but its a given for hot rodder extremists. With ends of rockers essentially removed the pushrod puzzle is solved. How about a small battery to start and idle a bit on but have English bicycle friction wheel charger on the rear tire for the long run. What size belt primary will hold your new found power? Will you try wheelies? Best wishes creeping up on leaned over tire spin you'll have on tap.

Click to expand...

I will never use a belt again, I was using different brand of 30mm, but they broke! now I am using a triplex chain, and inthe future I will try a duplex chain (from the camshaft from a Mercedes)

Re: Fullauto cylinder head:amazing but be care with high lif

marinatlas said:

http://www.accessnorton.com/norton-seeley-t4799.html

HI? here are the pics of Yves' Norton, the Big Spender...........

Click to expand...

Thanks, but they are old

Re: Fullauto cylinder head:amazing but be care with high lif

Yvves your old version is very hard to take in all its flashy details. I am also concerned about the belt drives so will try Maney 40 mm but retaining the oil seals in blower case to revert to oil gang if need be. Duplex should work or maybe just drive chain single run. Its gonna be tough not to attract police nor over do unknown turns with the spunk you got bewteen your legs. Norton engines were meant to flog not lug and bog so keep up the faith.