Friday, October 8, 2021

Zeroing in on the problem.....

 8:21 am - Friday - October 8th - Coupleville, WA - 44° F, 93% humidity, wind 5 mph out of the east.....partly cloudy today with a forecast high of 55° F.  On this date in 2018 TLE and I were having a late lunch at the world famous Katz's Delicatessen in Lower Manhattan, NY......↴

Best pastrami sandwich ever!

The place was packed, and there was a 30 minute line outside just to get inside and wait another 20 minutes for a table

Bob and I were kind of at a standstill on the John Deere Thursday as we are waiting for parts, so I spent time doing some maintenance on the Newell.  I replaced some small burnt out automotive bayonet type bulbs which, when not burnt out, illuminate these little red plastic globes which tell us something like the porch light is on, or the water pump is on.....

The really small bayonet style 53 bulbs

The slightly larger bayonet style 1445 bulbs

The porch light is on

The house water pump is on

.....I keep a supply of these on hand as you never know when one will give up the ghost, and now I see it is time to resupply.

Later in the day I did a search on YouTube regarding the injector pump used on the John Deere, and I found one. As Bob has been describing the symptoms of the engine starting, but shutting down a couple of seconds later I finally remembered that a solenoid is usually used to shut off the fuel supply to the engine, which is how you turn off a diesel.  The solenoid is normally closed when the ignition key is in the 'OFF' position, and opens when 12 volts are sent to it via turning on the ignition (On our Newell the shutdown solenoid is normally in the 'OPEN' position, and I must push a momentary switch to turn it off, and shut the engine down....once I release the switch after the engine has shutdown, the solenoid returns to the 'OPEN' position).  The injector pump was rebuilt about 18 months ago, and worked fine for a couple of days, but then the problems with it shutting down began.  It occurred to me that there must be a solenoid somewhere between the fuel tank and the injectors. The video I found is of a guy tearing down the same exact injector pump the John Deere has, and learned that the shutdown solenoid is just under the top cover of the injector pump.  The wire running from the ignition activates the solenoid causing it to open the fuel line and supply diesel to the injectors.  That wire appears quite old, and it may be shorting, or have a bad connection, or the solenoid itself is bad.  At any rate on Friday we'll first test to see if the solenoid is working by turning on the ignition key, and if we hear the solenoid go 'CLICK' then we'll know it must be something else.  If it doesn't go 'CLICK' then we'll jump a wire from the positive terminal on the battery to the terminal on the injector pump to see it that will activate it.  It will either be something simple, like replacing the trigger wire, or replacing the solenoid, or something wrong with the injector pump itself.  Meanwhile we are waiting for a new water separator for the tractor, which should be here on Monday (October 11th).

The video I found....there are two types of injector pumps used on the 1975 John Deere tractor.....Stanadyne, or Roosa Master.....Bob's John Deere has the Roosa Master....both pumps are virtually identical

Meanwhile, the days are flying by, and we've been here 5 days already.  Our projected, written in JELLO plan is to depart Coupeville Wednesday, the 13th, and begin our trek to SoCal arriving there around the 21st.  The daily temps continue to run about 10° cooler than Seal Rock, but there is no bone chilling north wind with which to contend.

Thanks for stopping by!

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