Pages

Thursday, April 3, 2025

Ignition coil replacement

 This post has watched 3 videos on ignition coil replacement.   This was resorted to when diagnosis reveal:   there is enough fuel, there is no problem with fuel lines, and sparks do not show at spark plugs.   So the ignition coil could be defective.   The three instances were on:    zero turn hydraulic operated lawn mower, a walk behind lawn mower and a John Deere lawn mower.  The replacement is straight forward and easy,   The parts can be purchased from Amazon (Lazada too?)





The old Volvo mechanic advice on gasoline engine repairs was right and his advice is forever!

 Several decades ago we had a gasollne Datsun and when it conked out at Carebi I had the chance to call a mechanic around, a Concrete Aggregates specializing in Volvo machinery who obliged to repair the old Datsun car.  He said that so that I will save money and so that I will not disturb him (he is being petitioned to work at Canada for Volvo Canada) I should remember two things:

    When a gasoline engine conks out there are two possible sources:   fuel line and electrical

    1,  For fuel

         1.  Is there fuel in the tank

         2.  Is the fuel of good quality (like its not stale, no water or dirt, other contaminants?

         3.  Are the fuel filters:   inline or main filters functional (they could be blocked) allowing fuel to pass through?

        4.  Fuel lines:    are they clogged, kinked or allowing air in the line?


 2.  For electricity:

      1.  Is there electricity coming out into the spark plugs?

      2.  is the coil functional?

      3.  Is the breaker working?

      4  Is the spark plug working

In many of the repair videos that I watched today on small engine, lawn mower repair, these kept being repeated as a meaningful advice


Safety switches at John Deere tractor lawn mower

 It could be difficult to start a John Deere tractor lawn mower because of numerous safety switches:

       1.  Seat

       2.  Clutch pedal

       3.  PTO

       4.  Reverse

You cant start the machinery if any of the 4 are safety switches are on.  So be sure to make them closed switches so that you can operate them





Black smoke after replacing turbos and injector

 It could be due to the intercooler.   Signs of defective intercooler:   black soot and oil at the underside from the leak.