Have a LX2610 with 90 hr. When I first had it I started it a lowest rpm and it started. Lately at 35-40 f it has a hard time starting even with block heater turned on for 2 hours. When it does start it usually is with the throttle open 1/4. The owners manual does not explain the right rpm to start if there is a right rpm?
Starting procedure RPM
- Thread starter Orange man hero
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35-40 degrees isn't that cold. I believe two hours of block heating doesn't do much. Does your model allow you to entergize the glow plugs, prior to starting? I'd check the glow plugs. When you open the throttle to start you're putting excessive fuel into the cylinders which isn't good.
Who installed the block heater?
On some models when Block heaters are installed, the Glow Plug controller needs to have the temp input signal source changed through programming to reflect cold outside air temps and not warm block temps.
Unless changed, the GP controller thinks it is a warm day because it is sensing block temp which is artificially warmed and provides little to no GP on time. This creates hard starting situations in my experience which seems crazy unless you understand what is happening.
Dave.
On some models when Block heaters are installed, the Glow Plug controller needs to have the temp input signal source changed through programming to reflect cold outside air temps and not warm block temps.
Unless changed, the GP controller thinks it is a warm day because it is sensing block temp which is artificially warmed and provides little to no GP on time. This creates hard starting situations in my experience which seems crazy unless you understand what is happening.
Dave.
GreensvilleJay
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re: This creates hard starting situations in my experience which seems crazy unless you understand what is happening.
Makes perfect sense once you know 'how it works'.
The real crazy thing is the 'engineers' know it can be cold, so they add glowplugs and controller, should KNOW owners will add block heaters(it's an option ! ), so they should have added an 'ambient air temperature' sensor to the 'computer'. For less than a dollar (USA or CDN) the problem is solved.
Makes perfect sense once you know 'how it works'.
The real crazy thing is the 'engineers' know it can be cold, so they add glowplugs and controller, should KNOW owners will add block heaters(it's an option ! ), so they should have added an 'ambient air temperature' sensor to the 'computer'. For less than a dollar (USA or CDN) the problem is solved.
Jay, you're just being too logical.
With the ability to see things like this in today's world you'll lead a frustrating life. I think when people come up with ideas, engineers confirm functions and operating conditions, and manufacturing begins the real fine details are left out. The consumer finds those! Things like this situation show up!
I have a B2650 which is the predecessor of your LX2610. The owners manual does have a recommended throttle setting that is a bit above dead idle for starting. I don't have a block heater and have never felt like it needed one even in the dead of winter in Michigan. I do use the glow plugs for 5 to 10 seconds . On the 2650 the glow plugs seem to be entirely manual, they are on if the key switch is held against the spring.
If any of this sounds like it applies to your tractor, I suggest you put throttle above idle by a couple hundred rpm before you shut it off and use glow plugs for at least 5 seconds, and skip the block heater now that it is spring. See how that works, and let us know.
Just looked at your location,and it may not be spring yet. 10 seconds of glow if temps above 15F.
The problem with that solution is….. if the tractor HAS been running….and shut off for a short while….an AIR temp sensor will provide the incorrect input.
The dealer put in the heater I believe. They are in Anchorage, Alaska and should know what they are doing?
Yes, I was putting the GP's on for at least that amount. Seems it will only start after repeated tries. I think the head finally heats up and it starts at about 15 - 1800 rpm?
The only other thing I do is leave it on a battery tender when not in use. That makes a big difference to easy starting in cold weather since I don’t use my tractor every day.
North Idaho Wolfman
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The LX2610 is a mechanical motor no computer for the engine or the tractor. Only the operator presence module but that only controls the fuel shut off solenoid to shut down the motor if you leave the seat without hitting the PTO enable button
Yes, but even some older models have a variable timer on the glow plugs. The timer uses a second coolant temp. sensor that causes the plugs to heat longer when the coolant is cold. The block heater can make the timer think the engine is warmed up, even though the intake isn't.
From sheepfarmer, it sounds as though the LX is like the B2601: a manual stop between "on" and "stop" and count 1-2-3. If really cold, put the throttle at 1/2 and throttle back once smooth enough, and you might need more than 3 seconds (but likely not). Except for the manual stop, this is the same starting procedure I used on the 1983 Benz 240D we had for 25 years (it only ever took those 3 seconds of auto glow time). The 1973 Benz 220D had a manual stop for its really old, slow glow plugs.
Should not need to run the block heater for more than 20 minutes. Otherwise, you're pouring electrical energy into the heater and just releasing the heat through the radiator.
Should not need to run the block heater for more than 20 minutes. Otherwise, you're pouring electrical energy into the heater and just releasing the heat through the radiator.
My LX2610 starts reliably at dead idle regardless of ambient temp with 4-5 seconds of glow plugs. No block heater. Stored in a covered, unheated shed.
nbryan
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If my B2650 is being shut down and not started until cold again, I set the throttle for around 1250-1300 RPM BEFORE shutting it down warm. That way it's in a good start and warmup rpm range when I start it up dead cold. 5-10 seconds glow, then go.
The block heater WILL EASILY warm the engine coolant in 2 hours. Even one hour makes a huge difference in how easily it starts. There's not very much coolant in these little 1.3L 3-cylinder blocks.
The block heater WILL EASILY warm the engine coolant in 2 hours. Even one hour makes a huge difference in how easily it starts. There's not very much coolant in these little 1.3L 3-cylinder blocks.