A generator charger which could do the 4 KW of battery pre-heating on a sub zero morning could be helpful.  I saw a video where a -12F cold soaked Tesla M3 (parked overnight next to the charger) took 40 minutes of 4KW heating before it would then charge the battery.  If the car is garaged and/or kept above freezing, then that's a non issue. 

You only need to fudge some additional losses over the standard 35% battery/charger losses for additional ST head losses.  So maybe 55% of total losses over direct diesel car use.  You do gain back energy for regenerative breaking, which can be significant for in town driving.

So if you needed 4 gallons of gas for the car's weekly drive,  you should be around 5-6 gallons of diesel. (Used oil.)

Lithium batteries are way higher in charge/discharge efficiency, over 80%; the 65% figure includes this and charger losses.  38ac's range needs are so low that he can easily stay in the highest efficiency range of battery charge.

Charge efficiency improves at lower charge rates, and you will be operating in the higher efficiency range. 

Bronco is thinking this was a lead acid battery?   There is no penalty for partial charges in lithium batteries, only some penalty for full charging some lithium ion/cobalt batteries.  Not so much for LFP.

Brilliantly simple boring bar drive, Butch.  My favorite kind of solution.   

Alas, the long term data on the very profitable stent procedure isn't good. 

https://med.stanford.edu/news/all-news/2019/11/invasive-heart-treatments-not-always-needed.html#:~:text=often%20needless%20Story-,Stents%2C%20bypass%20surgery%20show%20no%20benefit%20in%20heart,mortality%20rates%20among%20stable%20patients&text=A%20large%2C%20international%20study%20led,disease%20that%27s%20severe%20but%20stable.

Medicine has a long way to go.

Is that a gap line showing between liner and cylinder or just shadow from liner not flat and flush? 

Can you use Rajkot parts for a replacement cylinder?

Glad you got a bonus on the valve seats!

The 0.010 inches larger at the bottom cylinder bore has me scratching my head.  Perhaps a novice changed a dull cutter and forgot to adjust for it??? 

Hi Kari,
I replicated the SOM features but only for remote start/stop and automated monitoring.
 
My setup is a bit odd in that running an air compressor is my primary function, generator secondary.  Because I had air and a large receiver tank I use an air starter (Gast 4AM) with rubber drive wheel, air cylinder for engagement pressure, and air cylinders for rack closer and exhaust valve lifter.  Air has it's advantages and the economy of cheap cylinder actuators operated by small inexpensive 12V solenoid valves and 1/4 drip tubes.  It does also have a downside- the air motor consumes a lot of air, and pilot valves, check valves and compressor unloader valves all so leak some.   

I also added oil level sensing and a vibration sensor, plus generator load sensing and compressor idle sensing.  So it can shut itself off after 10 minutes of no load, unless I have the remote no load override switch turned on. 

Its controlled at both Listeroid and remote control ends by a Picaxe 40X chips programmed in Pixaxe Basic.  It uses a CAT5 cable for the remote control.  I can share code and schematics with forum members up to the task.  There are no PCBs, its all hand wired on perf boards.  If I was starting over today I'd seriously consider a redesign for the Arduino, which I have used since for a couple projects.  Mostly you need a lot of logic level gate, low side mosfets to control your actuators.

The simplistic DC bias on the AC line of the SOM is less ideal for today's lighting and other electronic loads, but I expect with some modern IC circuit redesign, the same concept could be used. I had no need for auto start,  remote start with auto shut down control was fine for me. 

Hey Thomas,
Regarding generator power quality and electronics;  most electronics are now switch mode power supply driven, with the first stage of it being a bridge rectifier to bulk capacitor.  They are mostly immune to problems like waveform issues and harmonics that are typical for gensets.  In fact, i operate my computer gear entirely on 120VDC, with standard 120VAC switching power supplies.  In a case of severe EMI on the generator power you might need to add a simple common mode choke filter.  In my case I found that 0.1 uF snubber capactors on each diode of the excitation bridge was highly effective in supressing most of the conducted AC power EMI, so I did not need to add a passive filter.

A commercial inverter will often have worse conducted high frequency interference (EMI ) than your generator.

Best Wishes,
Bruce