Tag Archives: lock

Iron Triangle Race to the Finsh


Making a taillight on the ol’ end mill.

tailight IT

 

Oil Tank, battery box, regulater/rectifier mount installed….

oil tank IT

Vent and return lines plumbed…

oil tank 2 IT

Top motor mount, check….top motor mount IT

I like this area…lots going onoil area IT

alt IT

Notice 3 wires coming out of that alternator! 48 amp 3 phase charging system from Cycle Electric feeding an Anti Gravity lithium ion battery. Less drag, lighter weight, faster recharge times.

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Iron Triangle Fender


The fender for my new bike (for the brooklyn invitational, then artistry in iron), has an entirely stainless steel rear fender. Recently I made the wiring conduit that leads the taillight wires from the frame backbone to the taillight location at the rear of the fender. To curve the thin walled tubing, I used a low-tech method that works well for tubing too thin to be formed in my roller- torch bending. Common thought is that using a torch to heat and bend thin tubing would result in the tube collapsing and “pinching”, but thats not the case if done right. By heating a large area of the tube to an even cherry red, and applying soft pressure, a perfect curve can be achieved!

here she is finished and installed:

fender 1

 

fender 2

 

fender 3


Iron Triangle Update


Bike is progressing! not long now…

photo (30)

 

 

 

Making stainless steel exhaust clamps. I made a simple fixture to form the flat stock to the correct diameter.

image (12)

 

After a lot of metal finishing….

image (11)

 

My only gauge will be cylinder head temp, which is the hottest part of the engine. Gauge itself is from an airplane.

photo (31) image (13) image (15)

This box got recessed into the top of the gas tank, and the other cutout is for my two mil-spec toggle switches. This is all cut out with basic hand tools and my sander.

image (16)

 


Iron Triangle Progress


Bike so far

complete bike 1

Gas tank is mounted on three points, here are the front two mounts

tank mounts

The exhaust pipes are 1 3/4″ OD, the common header pipe size. The problem with that is the actual exhaust port size on twin cam heads is 1 5/8″. Usually there is an abrupt step where the heads meets the flange. I machined the flanges with the inside tapered to perfectly blend the two sizes. Also, they have a flat, perfectly matching taper on the outside of the flange, so there is no way the gasket material can squeeze into the exhaust flow. This happens often with aftermarket exhausts! These are machined from solid stainless steel on my manual lathe.

exhaust flanges 1

exhaust flanges 2

Here is the underside of the gas tank, with two giant mounts welded in. They are 1.5″ OD flange, milled down where it goes through the tank. This distributes the load over a larger area of the floor of the tank (which is made from 1/8 chrome-moly flat stock).

underside of tank


Final Mexican Report


The riders arrived in LA in one piece, after a long cross country trip. Here is a pic of my old bike, the “Steel Butterfly” and “The Mexican”. I My friend John owns the Steel B.

steel b and mexican


Mexican Report 2


On the Salt Flats, Utah

mexican salt flats


The Mexican Report


The customer who commissioned the Efab bike “The Mexican”, has spent the last 10 days riding across the country with his friends. It makes me proud to know he is out there enjoying his bike!

Somewhere in Wyoming…

mex wyoming