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Old 09-30-2012, 02:54 AM   #21 (permalink)
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Putting QDs between everything really helps breaking it down for storage.
Being able to get all the water out of the pump, lines and spray gun will prevent freeze cracking when it cools off.

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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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Old 10-04-2012, 08:45 PM   #22 (permalink)
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The hose came from the factory with quick connects, easy to pull hose and bring it someplace warn.

Found excellent side effect of larger nozzle, the washer now runs comfortably on an otherwise lightly loaded (few cfl's and a wireless access point) 15 amp gfci breaker. Previously I'd blow a dedicated 20 amp if I wasn't careful with bypass.

I'll get a real wattage soon using my TED (kill-a-watt is Mia).

Used it today to clean up some scrap to make an arguably green device that ill post about in another section soon.
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Old 05-09-2013, 08:42 PM   #23 (permalink)
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Still kicking, I went to a slightly smaller nozzle which allows me to operate bypass free nearly continuously on a 20 amp breaker. I had a heck of a lot of cleaning to do at my grandmothers, and I ran it for 5 hours + with only a single overheat (of the motor) worked nearly as well as a 5+ hp gas, was much quieter, and I never have to worry about carburetor/ ignition/ fuel/ oil.
I use it daily for small task, but this was by far the longest run yet.
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Old 08-11-2013, 12:02 PM   #24 (permalink)
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I am building one now.
I have a 220v 3hp single phase 2 pole (3750rpm/noload) motor with 5/8'' keyed shaft and a standard 2.5gpm 3,000psi pressure washer pump that takes a 3/4'' shaft. Going to couple them together with an aluminum jawed urethane spider shaft coupler and a 3/4'' keyed shaft.

If I try to spin the pump up to full speed (3700 to 3400 rpm) at 3,000psi and try to get 2.5gpm out of it that's come out around 4hp.
So if standard 2.5gpm nozzles cause the motor to draw too much power then I will go to larger nozzles to drop the pressure and the power consumption.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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Old 08-11-2013, 01:08 PM   #25 (permalink)
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Sounds like you are on top of it.
There is a nozzle chart linked in this thread someplace.
Don't forget about the bypass, excellant for tuning, that last little bit, running on lighter cables than you should, or foam cannons that are difficult to get in many nozzle sizes.
I've done all of the above.

As an update, mine still licks but several times a week.
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Old 08-11-2013, 02:17 PM   #26 (permalink)
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I'm still looking for a pump, might go with a 3.4gpm 2000psi pump.
Edit; I will be going with the heavy duty 3.4gmp 2000psi "general" pump.
Running the 3.4gpm pump at 2000 psi puts me closer to 3hp than 2.5gpm at 3000psi does.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.

Last edited by oil pan 4; 08-11-2013 at 11:02 PM..
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Old 08-15-2013, 04:47 PM   #27 (permalink)
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Join Date: Jul 2011
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Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

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Ok the 3/4'' keyed shaft and spider couplers are in, they fit together perfectly.
The motor and pump should be in tomorrow.

I want to wire it up so that a low voltage momentary switch on the spray wand turns the electric motor on and off.
That way I don't have to worry about the motor flipping the circuit breaker when it goes to bypass or worry about the pump or motor over heating from being on but not spraying water.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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Old 08-15-2013, 05:23 PM   #28 (permalink)
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I considered the switch, but where I normally operate my washer the circuit has a tough time starting my motor (which is out of a 20+ year old air compressor).
The commercial electric washers use a pressure switch which I believe northern tool sells in various pressures, I think they eliminate high pressure starts, but I'm not sure. Worth checking out for sure.
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Old 08-15-2013, 07:10 PM   #29 (permalink)
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Join Date: Jul 2011
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SUV
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camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
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Where I work our pressure washer is set up with switches like that.
The first day I used it I noticed some one had left it on, so when I was done washing a piece of equipment with it I went to turn it off and saw that the motor wasn't running.
So I gabbed the pressure washer gun, brought it around to the door way where the pressure washer was located and squeezed the trigger and the electric motor kicked on while the trigger was pulled and shut off when I released it.
Hadn't see that before, I always figured something like that was possible.
I am used to the kind of electric pressure washer that stays running when you let off the trigger.

I wanted to use some of those on/off pressure switches but its not in the budget right now, at some point I will upgrade to them.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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Old 08-16-2013, 05:28 PM   #30 (permalink)
EV convert
 
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Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,172

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
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Ok I have a capacitor start capacitor run motor.
No wonder I got it so cheap, I bet the person that sold it to me couldn't figure out how to make it run.
I know how they work and what it takes to make them work.
So I am going to have to have the pressure washer run all the time.

Normally you connect the cap start circuit to a centrifugal switch. Since I don't have a centrifugal switch I will start it with a manual switch.

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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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