Sunday, July 4, 2021

ink bird temperature controller mystery


My no thrill electronics toys from China have been arriving faster than I have time to digest let alone putting them to use. I have been wanting to play with this Ink Bird temperature controller since its initial debut many years ago. I purchase the ITC-1000F version as it has 110Vac power supply rather than the original 12V. I want to use it to replace the mechanical thermostat for the rooftop air conditioner.

brunnhilde said no to trailer winch battery - part 4


this drain valve has irked me since day one as it is totally useless for draining the water boiler

The most expedient way to drain and clean the water boiler is to remove the anode rod which you want to do anyway when winterizing. The drain valve does nothing but to leave another place for freeze damage so it's got to go. Doing so allows me to reclaim a few cubic inches of precious storage in this compartment.

Saturday, July 3, 2021

brunnhilde's bilge ventilation


 

When making modification or alteration to most thing, I developed a habit of not overlooking the utilities what being removed that may seem obsolete or no longer needed. Often when one making altering something the focus is the incoming new, and the outgoing old is regarded as something to be disposed.

Friday, July 2, 2021

brunnhilde said no to trailer winch battery - part 3



I was hoping being able to receive the parts from Amazon for the trailer winch power supply in time to use at the race track. Unfortunately only the battery cutoff switch that I order last arrive first, and the rest was delayed by a day.

Monday, June 28, 2021

operate power windows without a key

 

Brunnhilde is built on a Mercedes Benz T1N Sprinter that was designed and developed in the late 90s, and mainly as a commercial van with immense cargo or passenger capacity and fuel efficient. Much conveniences of a modern sedan or even SUV or truck were not the the things the designer had in mind in those days. One of these is the ability to operate the front power windows without turning the ignition key to the engine run position.

Sunday, June 27, 2021

brunnhilde said no to trailer winch battery - part 2



Carrying a tiny AGM battery in the water boiler compartment is a viable solution to power the winch. That avoid the increase in the trailer tongue weight imparts onto Brunnhilde which has a 500 lb maximum. In the existing arrangement, I intended it as a test of concept and planned to refine the design to further optimize it. As it stands it requires the passenger side rear door as well as the water boiler compartment door both be open during the operation.

Saturday, June 26, 2021

brunnhilde said no to trailer winch battery

 

Brunnhilde is known to haul all sort of thing, including a car trailer fully loaded across the Continental US. For most street cars converted into track cars, I have no problem driving the cars up and down the trailer with the ramps. However, with radical race cars they are next to impossible to do so because of the aggressive racing clutches, and non-existent flywheel mass due to sequential gearboxes.

Thursday, June 24, 2021

brunnhilde cutting her landline - part 2

 

I continued the work of repurposing the defunct POT and cable TV jacks on rear quarter panel.

Wednesday, June 23, 2021

air conditioner soft starter for Honda eu2000i generator - part 5

I have been doing more testing of the air conditioner powered by the Honda EU2000i generator in full sun hot days at 1,880 ft elevation. When I install the air conditioner back in 2015 I could not imagine there are that many parameters that affect the generator's ability to support it in Eco mode, as well as the tuning I would found in recent tests.

Tuesday, June 22, 2021

air conditioner soft starter for Honda eu2000i generator - part 4

 


It must be a labor of love. It is a major PITA to make the Kerstner AC control panel functions exactly as original. The Coleman Mach 8 Cub does not have variable blower speed control. Instead it has High and Low. Due to the shaft size of the original potentiometer and the tight confine it is very difficult to find a two position switch. Since I have the TRIAC speed control I decided to find a potentiometer that is approximately the right value (to increase the odd that I have one on hand) and move it off the TRIAC speed controller and locate it back onto the control panel.

air conditioner soft starter for Honda eu2000i generator - part 3

Yesterday was the first day the weather gotten hot enough to do some testing in the later part of the day when the van has been heat soaked in the sun. To my disappointment in no time the generator's overload protection was tripped. My heart sunk to say the least. I was running ethanol mixed premium fuel (not that premium octane has any benefit). I tried a number of time restarting and monitoring it still running in Eco mode, each time upon restart the engine will stumble and slow way down to which point the AC voltage dropped way low. What happen? I scratched my head dumbfound.

air conditioner soft starter for Honda eu2000i generator - part 2

 

One more thing. As I wanted to keep the Westfalia interior unadulterated, I adapted the air conditioner controls to use with the Coleman Mach 8 Cub AC. For the blower speed the Coleman has a fan high/low selection switch, while Westfalia had a variable speed control. One with think it should be easy to just swap out the potentiometer and put in a SPDT toggle switch. No. the nut and lock washer for the potentiometer is hidden behind the aluminum sheet that forms the faceplate of the controls. It is secured by high strength double sided pressure sensitive adhesive tape. To remove the faceplate you have to destroy it.

Sunday, June 20, 2021

air conditioner soft starter for Honda eu2000i generator

 


Here is some preview of my recent battle to sort out some pesky issues with the Coleman low profile AC which I had planned to use my Honda EU2000i generator to power it, in Eco mode which is a very tall order. I want to use Eco mode as the generator will only run as fast as the load requires, hence gives the longest running time and most fuel efficient. However even not running in Eco mode, the surge current when the AC restarts it would often trip the overload protection of the generator. You cannot reset the electronic breaker without powering done the generator and then restarting it.

brunnhilde cutting her landline

 

We have been wanting to do this a very long time. That stupid landline POT jack on the rear of the camper is finally due for repurposed for something useful to meet a new need. I once planned to install a jack for portable solar panel. But I soon realized storing even a modest size panel is challenging, not to mention I have to worry about strong wind blowing it over. Very often at the race track I get to plug into 120Vac for light usage. This means nothing over a couple of hundred watts or less. 

Wednesday, June 9, 2021

brunnhilde's broken skylight

 

Last year while camping at the racetrack a freak storm came with violent wind. I immediately rushed into the bath to close the slightly open skylight. I was a second or two too late, Before I could unlatch the handle which requires raising the skylight slightly, the wind ripped the skylight right off. I reckon the peak windspeed was no less than 60 miles per hour. It came towards the rear of the camper which made the skylight very vulnerable.

Monday, May 3, 2021

iPhone 12 pro max camera

I took some low light photos using the iPhone Pro Max which has three imagers and the wiz bang algorithmic image processing. 

Friday, April 30, 2021

brunnhilde's fresh water level sensor failure - part 2

 

The fresh water level sensor in Brunnhilde failed in June of 2013. I had since replaced it with a "new and improved" one that is constructed of a stainless steel tube rather than a plastic tube. Just when I thought it should last much longer than the original one of 9 years. Not so fast. In the owners' forum in North America there has been many report of the "new and improved" sender failed of late.

Monday, April 12, 2021

taiwanese beef soup noodles - part 2

Since I took a month long trip to Taiwan, I am inspired by what Taiwanese do with their beef soup noodles. I am now more willing to let the hair down when preparing beef soup noodles. I would never guess that sesame seed oil work but now I am a believer.

happiness is another small engine - part 3


I wrote this post a year ago but left in as draft. I decided to go ahead and publish it now.

I just add another small engine to my collection. This one is an essential equipment for the ranch. Happiness comes from the time and misery I save from using a lesser piece of equipment.