torsdag 21. november 2013

More carburation

Blew the carb with glas after grinding off all the welds, this give the look of one cast part.
Sprayed the entire carb body with heat resistant silver color, this to match the M88 Linklert carb bowl to be used.

Kind of funny, a new Linkert M88 throtle disc shaft and bushings, small screws and more fit the 20 years older Schebler DLX, huray for conservative thinking, when something works there is no need for modernizing.

The DLX-20 was used on both the 61 & 74"`s (1000 & 1200cc), when looking  into the details for the carb manifold and inlet nipples for each off the engines there are interesting differences. The manifold inlet diameter is matced to the DLX carb on the 74", but the inlet nipples in the heads have a much larger inside diameter than the manifoild outlets, hence there is a step and I would think turbulence is created.

The 61" manifold have a smaller inlet diameter than the 74" manifold, this is a restriction of the flow that creates turbulence. The manifold outlet on a 61" is smaller than the 74"`s manifold, still the nipples in the heads have close to the same inside diameter as the 74" manifold.

Conclusion of all this, using a 74" manifold with the DLX-20 on a 61" with its inlet nipples will give a pretty much even surface that is tapered inwards at roughly 5 degrees, slight decreasing all the way from the carb inlet to the valve cage.

Yes, yes I know the 74" inlet valve and valve pocket is slightly bigger, still I think the 61" inlet valve will work with a 74" manifold, if it was machined to fit. Eventually practice will show if any off this makes sense, I better get the lathe to cut off some high quality Harley steel.

tirsdag 19. november 2013


Had a Schebler DLX 20 amongst a bunch of other brass in a bucket. This is a carb correct for the 1921-24 61" & 74" (1000 & 1200cc) according some, other tell 24 to 27, anyway it will work on my 61" (1000cc) and I didnt wanna "ruin" either my spare DLX 38 nor 45.
The size of the DLX 20 is spot on towards the 1927 61" manifold, no internal misalignment to inhibit the gas flow.

Choke is for pussies, you only need the palm of a hand, and the DLX 20 is cool as it have a low speed needle with three preset steps bringing the low speed out, as on later models where this is automatically done by the choke cam.

OK I admit having admired the beautifully crafted racing Likert`s made by Andrew at Antique Speed & Machine. I wanted my own DLX 20 to look as if made for racing, and if I am lucky, adding a longer inlet cone could increase the inlet flow.
OK, at least it looks cool!!

Below is a few pics from today`s work.

Tomorrow I need to solder plugs in the old choke shaft holes, there will be some filing work on the solder and finally I will blast the carb to give an overall cast finish, cant wait to complete this one.

mandag 18. november 2013

Bjarne Wists 1925 Harley racer

Fun at Norwegian Museum of Science and Technology.

First time ever I play with a motorcycle wearing white linen gloves.

The former Bjarne Wist Harley 1925 European road racer is a strange bird indeed, a mix of very early parts and some 1925ìsh parts to give it the new for 1925 streamlined aperance.

The front keystone engine plate mount is pretty close to those used on the re-pop frames available. The rear is a very complicated cast piece, made to be light still strong at the primary side of the engine.

Fork legs are shorter than on a stock bike, the rake is a little more steep. Distance between wheels is shorter than stock too.

Conclusion, the Wist Harley is not a modified stock bike, its a true special from the race dept.

Wish it was my bike, wish it was my bike!!!!!

fredag 15. november 2013

Parts parts parts

I seem to be keeping the postman busy these days :-)

Competition Distr. make some great parts for your IOE!

tirsdag 5. november 2013


Hah, so you thought I was just busy to relax since there was no action on the blog. You couldnt be more wrong.
Since I came home from the rig, there have been to few hours, far too few.

I have now officially started a new project. New, that is not all truth. It is a older project, namely the "Cutdown" project that started a few years ago. Now its serious business!

Have spent hours digging in my stash to finde the best cylinders, crank case, rods, gearbox etc etc.
To my surprise, (negative), many of my parts in the stash boxes are crap. Why on earth did I years ago spend money on all them rotten Harley J parts???

The engine will be a 61" (1000cc), based mostly on parts from 26 & 27.
I want an engine with light flywheels, high compression and it will be hopped up, a lot.
Wait and see!

Will try to post frequently along the project as I did with Bessie. I promise to!

As I have spent a lot of time in the workshop, I found it was due time to get my old Sunnen hone restored.
I have been collecting a couple of Sunnen LB Rod hones and a bunch of gear for those. Allso had a AMCO hone that I was given for free, a really neat machine, far better looking than the Sunnen, what a pity there are no tools for those to find on e-bay.
Having collected the lot of honing gear in the workshop I realized the AMCO bottom part with an intgrated cooling tank would be great if matched with a Sunnen.

Got one of my contacts to burn out a steel plate that could be machined to make this possible.

I personally find the result is very good (modest eh?).

In the community where I live there is a population of roughly 12000 people. In a short time I have found two Panhead engines here, in deep dark cellars, forgotten and molested.
Now they both have come to my home, where they will be appreciated.
The funny thing though is, if there is an average of two Panhead engines among every 12000 people in Norway, there should be roughly 800 Panhead engines throughout the country that is waiting for me, ha ha!!!
Watch out!

Here are some pictures for your enjoyment.


AMCO bottom & Sunnen LB Rod hone

Making a wooden template for cross over plate

Sunnen LB machine before restoration

SL mandrels in various dimensions

Truing sleeves

All in parts

Coming apart to be cleaned and inspected

Its red again

Sunnen lamp, classic US industrial lamp

Steel plate ready to be machined

AMCO cooling pump and transformer

Done deal!!

Next project is now on the workbench.

Ready to start


Clutch sprocket and bearing from Mark at Linkcycles

Offset inlet rocker arms

New flywheels from Truett & Osborne and a jiffy stand from Michael Breeding