I have both an HJ60 and a Mercedes 300TD running on biodiesel from the SF grease recovery program. My question is why the Landcruiser is so significantly different from the sedan in cold morning starts? I have new glow plugs (stock), new strong batteries (Optima yellow tops) and am facing 3-5 glow cycles before the truck starts depending how cold it is (and it has been cold here in SF lately- not snowing Northern miserable cold but damp North Coast miserable temperatures in the high 30s- 40s according to the thermometer out in the yard). The Mercedes, no matter how cold, starts right up on one glow cycle.
I know that people have skipped the timer circuit on the HJ60- mine came to me that way and I was cautioned against that as the glow plug timer circuit accounts for previous heating cycles to prevent cooking the plugs. (I believe that there is a nice graph of charge vs. time in the shop manual.)
I know that people have skipped the timer circuit on the HJ60- mine came to me that way and I was cautioned against that as the glow plug timer circuit accounts for previous heating cycles to prevent cooking the plugs. (I believe that there is a nice graph of charge vs. time in the shop manual.)