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Over the last 35 years I have been taught and have discovered several great time saving as well as engine saving tips. These have been very useful.  Hopefully you will agree.


On Holley Carburetors

I've found that nylon washers that you can get from a builders supply house like Lowe's work very well and are inexpensive. Use these instead of the fiber washers that are furnished in most carburetor kits.


After setting #1 piston on true TDC, mark the crankshaft flange in line with the pan rail or some where it's easily seen. By doing this you can accurately line up the timing pointer after the engine is together. This is especially important on an engine with a bolt on or adjustable pointer.



Once you set your base timing where you want it , mark the distributor and intake manifold. This makes it easy to line up the distributor later on. You also have a reference point to check later if your timing changes for some reason. If the marks here are still in line and you're timing at the damper and pointer changes, find out why. It could be distributor or cam gear wear or a problem with the distributor itself. I just use a large blade screw driver and tap it with a hammer.



What Is E85 Fuel?

There seems to be some confusion about this. I've had people come into the shop asking about using E85. To begin with, one misunderstanding is the % of alcohol contained in the fuel you are using. Most fuel in our area (Atlanta) is only suppose to have 10% alcohol and 90% gas. But when tested the % can be far from this. It would be wise to test your fuel. (go to the bottom of this section to find out a simple way to check for the percentage of alcohol in your fuel.) If the alcohol content gets above 10% then you start having all sorts of problems, (Unless you have a Flex-Fuel vehicle which can run on as much as 85% alcohol). We've seen carburetors, fuel lines, fuel tanks, and a lot more damaged by too much alcohol in the fuel.

E85 contains 85% alcohol and only 15 % gas. Not the other way around.

Since there are rumors that this concentration of 10% is going to be increased, this is where some are confused. When they hear the term E85 some assume that the 10% alcohol listed on the gas pumps will increase to 15% and that this would be E85.

As you can see even if this were allowed to go as high as 15% then it would only be E15 since the number is the alcohol % and not the fuel %.


A simple test for the amount of alcohol in fuel

Be careful and observe all safety precautions

Pour 90 ml of your fuel into a 100 ml graduated cylinder. Add 10 ml of water, shake it good to mix it together. Allow this to stand for 10-20 minutes to settle. The alcohol will mix with the water and settle to the bottom. Subtract the 10 ml of water you added from the amount of alcohol and water mix and this will be the % of alcohol you have in the fuel sample.

More to come! So Please check back.


D&A Machine Shop

764 Scott Rd. Canton, GA 30115  770-479-5873