I Know, I Had To Use The English Word!
Other wise the Alliteration wouldn't work.
When we were running the Panther there were two problems with the gas supply, as you may recall from earlier posts.
1) The float level was too high.
2) The idle mixture was way too rich.
The Amal carburetor of the monobloc type has no means provided to adjust the float level.
I guess that they thought that their machining prowess was such that it would be just right every time.
My brother Jimmie has a theory that over time they suffered from tolerance drift when making the needles and seats.
The only way to adjust the level with any precision is to machine the face on the threaded connection which acts as gas hose connector and valve seat.
This is the part from my Panther, as you can see it too shows the marks of the Philistines.
However, the machined brass face is the one used to adjust the float level.
At first I thought that a really good finish was necessary to achieve a seal which would be gas tight.
But, upon reflection decided that gas should never get that high so it is a moot point.
I machined 0.020" from the face and refitted the part in the carb. With everything connected there were no leaks, that is a good thing.
On to the rich mixture at idle.
I purchased a new jet from Triumph Classic Motorcycles in Costa Mesa.
Now, I can remember part numbers and serial numbers and all kinds of stuff, but John is even more AMAL that I am. When I asked him about the jet I needed, he rattled off the part number immediately, I guess a life time of dealing with the stuff will do that do you.
This is the idle jet looking like it just came from the factory, which is hardly surprising as it just did.
This is the old jet, as you can see it has a really big hole.
Maybe the previous owner drilled it out to make it start better, who knows.
The new jet has been installed and is awaiting testing.
Now I am just waiting for the clutch parts from the UK and we should be ready for another test ride.
The design for winch mount for the truck is proceeding apace and most of the material has been sourced from a local steel stockholder previously used for other bits.
There are no batteries to die on you and unlike pens, no ink to run out on you at the critical time.
I'll keep you up to date as things progress.
But here's a pop quiz:
What is the origin of the AMAL name.
Answer next time.
Or credit to the first correct answer.
Ciao Bella,
