Sunday, February 5, 2017

A more efficient fan shroud


Volvo has developed and patented this idea for their over the road trucks, but there's no reason it can't work on smaller vehicles. The ring surrounding the fan is fixed to the engine block so the ring can be much closer to the fan blades and so i more efficient. Not obvious from the diagram is that the fan shroud is a flexible material, sealed to the radiator and the ring.

Saturday, February 4, 2017

Preventing Over-heating and Corrosion In Your Car

For hotrod, sports cars and older cars, especially cars that are infrequently driven, overheating and corrosion are all too common problems.

Many people are surprised to learn that the traditional 50/50 mix of water and anti-freeze is not the most efficient way to cool your engines. Water alone is the most efficient medium, but there are two problems associated with water as the only coolant. First, water will freeze in the winter and usually cracks the engine block. Second, antifreeze includes corrosion inhibitors and water pump lubricant, both necessary for you cooling system.

Here's how to get around those problems.

  • Replace your drain petcock with a sacrificial zinc anode or have an appropriate-sized bung added to your radiator. These anodes are commonly used in marine engines and - surprise - the hot water heater in you house uses one. It's proven technology and you can buy them at boating supply stores or Amazon.
  • Add a surfactant like Water Wetter, available at auto parts stores. This product reduces the surface tension of the coolant keeping bubbles from forming, increasing coolant to metal contact and improving the transfer of heat to the coolant.
  • To replace the corrosion inhibitors and water pump coolant, just add a bottle of  the very same thing, also found at auto parts stores.
In the spring, drain the coolant from the system, add the above ingredients to refill your radiator and top off with distilled water (never tap water - too many minerals and electrolytes that will cause scale and corrosion). Most importantly, write down how much water you use to fill the radiator because when cold weather is upon us in the fall, drain one-half of the water and replace with anti-freeze whether you will be driving your car in the cold or not.

Every Spring: Lather. Rise. Repeat.

Thursday, December 8, 2016

Tools made by Danaher/Apex are sold as:

Here for easy reference.

Tools made by Danaher/Apex are sold as Armstrong, Craftsman, Masterforce, USA Crescent, USA Kd Tools, Kobalt, and a few others.

Snap On also makes tools for Williams or CAT... maybe a few others. williams makes tools for others.

J.H. Williams and Lowes originally partnered to manufacture Kobalt tools, but since 2003, Kobalt tools have been made by Danaher. Chervon makes Kobalt’s cordless power tools
Here's a good look at who owns who which leads to who makes what.  
Who Owns Who

This site uses the tools barcode to identify the manufacturer.

A good thread that identifies "tool truck" equivalents.

Monday, August 29, 2016

Thursday, June 30, 2016

Improved SBC Timing Chain Oiling

In the plug in the passenger side passage, drill out the plug 0.030" (1/32") to spray on the chain. You can also drill the other two plugs to release trapped air, but it's not necessary.

You can tap the plug holes with  a 1/4' pipe tap and use pipe plug, but use a shallow plug for the center hole so as to not to block the oil galley behind it.


Oil pump pickup should be held 3/8' to /1/2" off the bottom of the pan. When located correctly, weld the pickup in place.

REFERENCE

Block Plug Basics, Super Chevy

"Most small-blocks feature four 3/8-inch threaded holes (two per side) at the front of the block. The upper hole adjacent to the fuel pump passes into the crankcase area and if left open will allow oil to leak out from the block. Be certain to plug this hole only with a short 3/8-inch bolt (1/2-inch long). Because this hole aligns perfectly with the fuel pump’s pushrod, a longer bolt will contact and seize the pushrod during engine operation."

Grump's Performance Oil System Mods.

SBC Higher Capacity Oil Filters

If you have the room for the longer, spin on filters:

The "longer high capacity oil filter" Purolator is L40084.

"longer high capacity oil filter" N.A.P.A: # 1794

"longer high capacity oil filter" AC Delco: PF932

WIX 51459 ?

WIX 51794 ?

REFERENCE:

Grumpy's Performance Oil System Mods That Help

Sunday, June 19, 2016

Handy MIG welding reference.