Recent content by gbritnell

I forgot the engine was using a distributor. Probably would be just as easy to use a waste spark and do away with the distributor all together

So a waste spark for both cylinders?

The problem is they have to operate off the camshaft, not th crank.

This is my 302 V-8 engine. It has a scale flywheel so it will fit within the scale bell housing. It uses a simple air bleed carburetor with no type of accelerator pump. The timing is fixed at what I found was optimum for all around running, 35 BTDC. The idle is about 1500 rpm although by...

Similar to their full sized counterparts a lot of things can affect engine rpm, slow and fast. Take for instance flywheels. On a sprint type cars there is little or no flywheel for quick engine response. On a model engine they won't operate without a flywheel. You can't scale centrifugal...

Terry, extraordinary work as usual. The details on the carb are amazing!

So where are you with repairing the stripped thread! Just saying!

OK here's how you fix a stripped 1/4-32 thread. Drill and tap the hole 3/8-24. 5/16-24 won't give you enough metal at the thread root to re-tap to 1/4-32. Now take a piece of steel or aluminum and cut the 3/8 thread on it with a die. The starting side of a die has a chamfer or lead on it. This...

When I built my 302 V-8 engine I played around with several different designs and sizes of carburetors. What I settled on was, at the time, the smallest O.S. carb available. It has a bore of about .200 (5.10mm). I then measured the critical sizes, bore, air bleed port, barrel diameter etc. and...

Steamchick working on early Triumph engines with Amal monoblock carbs you could buy slides with different cutaway to modify the off-idle performance. When the Japanese street bikes came out with the CV carbs (constant velocity) that solved the problem. CV carbs have a throttle disc for air...

The plans are sent as PDF files and are in Imperial size sheets 8-1/2 x 11 which is close to Metric A4 I believe.

Yes the plans are still available. Send me a PM and I'll give you my email address for the information

Steamchick, There had to be something else going on with your carbs. I have worked on motorcycles since my late teens. (now 79) Everything from Whizzers, Cushmans, Triumphs, Ducatis, Gileras, and all the Japanese 2 and 4 stroke engines. I can honestly say I have never run across a carb that...

I have several of the smallest 'weed eater' carbs. Several fellows from the BAEM club used them on their engines. I was in my learning phases so I thought I would give one a try. Before I get into particulars let me say that the smallest WE carb is larger than most engines would require. Now the...

The revelation to me was looking into the throat of the carb on my Holt engine. At idle there is such a small gap between the throttle barrel and the venturi bore you'd wonder how the engine would run at all. This engine has a 1.00" bore and 1.25" stroke. At that point I make all my carbs small...