Huge Equipment Sale!

H

homer

Equipment Sales
If you can wait - starting December 1, 2006 EnviroSpec will start it's Year End Clearance Sale where you will find incredible prices on the Industry's very best Hot & Cold Pressure Washers with the best Engines and the best Pumps.



For the new guys...

...remember Belt Drive pressure washers will generally last 3-5 times longer than Direct Drive pressure washers simply because you are not running them 'wide-open' all the time.



So 'keep your pants on' and we will open the flood gates on December 1.
 
homer said:
For the new guys...

...remember Belt Drive pressure washers will generally last 3-5 times longer than Direct Drive pressure washers simply because you are not running them 'wide-open' all the time.
Click to expand...


Correct me if I'm wrong, but the engine is running at full throttle in either a belt or direct drive machine. The difference is in the pump's rpm's, which are half with a belt drive.
 
Right

On a typical engine - the pressure washer manufacturer will take the engine out of the box and bolt on the pump, throw on an unloader and maybe crank it off and adjust the pressure and away it goes.

Every engine that I have ever seen - Honda, Briggs, Kohler - you name it - comes from the factory pre-set to run a minimum of 3600 RPM and most run 3700 RPM and higher out of the box.

When they install the 3400 RPM pump (direct drive) - which already has a limited life simply because it is running wide open all the time - it now has to handle the additional 200-500 rpms.

I do not know of a manufacturer out there (except us) who tacs out the engine when it is installed to make sure the engine is not running faster that the recommended RPM of the pump.
 
Gear Dirve Tip

When sizing a pump to a gear this is the way we do it.

With a 1450 RPM Pump and a gear box you will need to set the Engine RPM to 3190 (not 3600) which means the engine is no longer rated to the advertised horsepower.

For example: A TS2021 Pump requires a 17.81 (18) horsepower engine. Since you have to drop the engine RPM so you do not over run the pump you also decrease the output horsepower of the engine. In this case it is producing more like 15 to 16 horsepower.

With this in mind - using the same spec - you should probably look at a 20 to22 horsepower Kohler or Honda.
 
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