Norton 880 long-term project

Cookie · Jan 24, 2009

If you bought it at a Honda dealer it would probably be twenty bucks. Those are pricey carbs but they have a great sexy factor.

grandpaul · Jan 24, 2009

I just can't see building this bike too far off what Kenny would have built (as a classic 880); I did get them for less than list price, and they are pre-jetted and setup to be "plug and play" with the 880 when it's built. Man, what I would give to get my hands on a 951 engine...

Cookie · Jan 24, 2009

The 880 is already pretty exotic if you ask me. The lower end design was marginal for a hot rod 750 as the Combat proved, the 880 might just be a better bet.

Jeandr · Jan 24, 2009

Quick and dirty

Grandpaul,

Here is a quick fix while I think of something more "trick". It works, but lacks "finesse"

Jean

Jeandr · Jan 25, 2009

Made those this morning

Here is the clip I made this morning. Made from ¼" aluminium flat stock.

Jean

grandpaul · Jan 25, 2009

The first one was nice, the aluminum one is really nice!

Cookie · Jan 25, 2009

Pretty trick!

grandpaul · Feb 2, 2009

Well, the sale of the 71 Roadster means I'll have A LITTLE bit of play money to get a few more bits & bobs checked off the parts list. I'm going to put the front end back on the chassis and see how it all looks now that it's an actual working prototype.

grandpaul · Feb 24, 2009

Well, it's getting longer and longer between updates (lack of play money will do that).

Good news X 2!

Item 1: Since I helped Kenny sell off some of his remaining VR880, Norton & Triumph stuff, and since I've spend a significant amount on everything else I've already bought from him, he cut me a pretty great deal on the Blue bodywork. So, it's paid for and should arrive in a few days. That's the last major expense on the project, everything else is nickle and dime, a hundred here, a couple hundred there.

Item 2: Found a very good deal on an ever-so-slightly used Megacycle 560-00 cam, significantly below list price (thanx, RoadScholar!). It's on the way and should be on the shelf in a couple of days. I'll need to have the cam followers radiused to co-exist with the lobes on the "warm" cam, but that's not a big deal.

Next step will be to tear down the spare 850 engine and yank all the needed parts out, then send the crank, rods & cam followers to the machinist.

Pix soon...

Cookie · Feb 24, 2009

But at least it's progress! I hope to get a little garage work done today if my wife does not have anything for me to do when I get home.

RoadScholar · Feb 24, 2009

grandpaul said:
Item 2: Found a very good deal on an ever-so-slightly used Megacycle 560-00 cam, significantly below list price (thanx, RoadScholar!). It's on the way and should be on the shelf in a couple of days. I'll need to have the cam followers radiused to co-exist with the lobes on the "warm" cam, but that's not a big deal.

The cam is brand new :wink:

grandpaul · Feb 24, 2009

Even better!

I forgot what I read on the for sale thread, thought it was something about a trial fit; too many things going on at the moment to keep track of all 12 balls in the air.

Thanx again.

grandpaul · Mar 4, 2009

Just received the cam.

Stock cam (upper), Megacycle 560 (lower). You can't see the differences in cam lobe profile with a casual glance, but you can see heartier oiling grooves-

Looks like about .025" difference in overall lobe height, I need to download the actual specs just for grins-

Cookie · Mar 4, 2009

Is that enough to upset the geometry?

grandpaul · Mar 4, 2009

No, they are designed to operate properly in the correct application. All that is required is to have the cam followers ("tappets") radiused to a 3" base circle, to allow the steeper cam lobes to make the transition smoothly.

Cookie · Mar 4, 2009

That sounds too easy....Do you have the followers re-hardened?

grandpaul · Mar 4, 2009

I'm not sure if they do any additional treatment to the Stellite tips...

grandpaul · Mar 4, 2009

Boy, did I screw up.

I only sent in the bottom yoke (for polishing) which has been modified and adapted to use the standard Norton head bearings. Now, I need to
send the top one in to get it polished to match; it's in perfect original shape, but just will not do, now that this one looks so nice-

Cookie · Mar 4, 2009

It's so shiny it looks like chrome in the pix.

grandpaul · Mar 4, 2009

Yep, my polishers to absolute mirror-finish work. They are not cheap, but the finish cannot be beat; have to send in 2 or 3 bikes' worth of parts all at one time to make it cost effective.

Norton 880 long-term project

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