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Old 11-14-2015, 09:42 PM   #31 (permalink)
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You're talking about a different thing. Glow plugs inside the engine heat the combustion changer before the engine is cracked to first warm up the combistion chanber enough for the diesel to burn on startup. Some models leave them on for a few seconds to help combustion while the engine is cold, which is fine.

This is completely different from a glowplug used to heat up the coolant, which might stay on for a couple of minutes.

The intake ones are yet a different system. I remember them in very ancient direct injection Japanese systems. They're not as efficient, but a direct injection engine can start unaided at much lower temperatures. I can't recall any modern engine with them.

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Old 11-14-2015, 11:30 PM   #32 (permalink)
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I wondered why you went from coolant heating to glow plugs. It would seem to me they should of thought of a better name. That's quite confusing.

As far as the intake grid heaters go, most new large international diesels have them. Freightliner too. Probably a few other large commercial vehicle diesel engines.
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Old 11-15-2015, 12:10 AM   #33 (permalink)
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Quote:
Originally Posted by cts_casemod View Post
You're talking about a different thing. Glow plugs inside the engine heat the combustion changer before the engine is cracked to first warm up the combistion chanber enough for the diesel to burn on startup. Some models leave them on for a few seconds to help combustion while the engine is cold, which is fine.

This is completely different from a glowplug used to heat up the coolant, which might stay on for a couple of minutes.

The intake ones are yet a different system. I remember them in very ancient direct injection Japanese systems. They're not as efficient, but a direct injection engine can start unaided at much lower temperatures. I can't recall any modern engine with them.
Multi KW high voltage coolant heaters, two plain block heaters, glow plugs, intake heaters. I have them all.
OEM configuration had glow plugs and a single block heater. Insufficient for my hatred of winter.
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Old 11-15-2015, 12:12 AM   #34 (permalink)
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Quote:
Originally Posted by Isaac Zackary View Post
As far as the intake grid heaters go, most new large international diesels have them. Freightliner too. Probably a few other large commercial vehicle diesel engines.
For years cummins used intake heater grid only.
I know the 12 valve P-pump 5.9L cummins would fire a cold engine down to about 25'F with no intake heating as long as you had a strong battery.
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Old 11-15-2015, 12:30 AM   #35 (permalink)
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Quote:
Originally Posted by Isaac Zackary View Post
I wondered why you went from coolant heating to glow plugs. It would seem to me they should of thought of a better name. That's quite confusing.

As far as the intake grid heaters go, most new large international diesels have them. Freightliner too. Probably a few other large commercial vehicle diesel engines.
Always leaning Haven't seen one in a while here!

The glow plug name is because someone had the idea to use the glow-plugs (same as used on the engine head) to heat up the coolant. More expensive models typically use a PTC element on the heater matrix, electrically operated, which helps to warm up the cabin while the coolant is cold:



Adaugare PTC (Auxiliary Heater) - VW Golf, Jetta, Caddy,Touran

And here is the glowplug version (check the first images)

ALH engine timing belt replacement VW Jetta TDI Golf Beetle 1998-2003: part 1/3 | VW TDI forum, Audi, Porsche, and Chevy Cruze diesel forum

These can be retrofitted into other vehicles or as a inline heater for the WVO folks.





basically it heats up the coolant (and creates additional engine load via the alternator) as it passes trough.
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Old 11-15-2015, 12:41 AM   #36 (permalink)
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I personally just plug in a 1,600W block heater for a couple hours.
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Old 11-19-2015, 08:35 AM   #37 (permalink)
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I have been using the block heater some now that the mornings are getting frosty.
Unfortunately I do not have the instant defrost that I wanted for 2 reasons.
The electric coolant pump circulates the coolant through the element too fast and with the engine off the vent controls have no vacuum to actuate the fan selector so the default mode blows all the air out the floor vents.
But even after only 10 minutes the engine is nice and warm.
If the blower air would go to the defrost vents the heater would only need to be on for maybe 5 minutes before it would start to melt frost.

The heater element draws 23.8 amps.
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Old 11-19-2015, 12:20 PM   #38 (permalink)
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Quote:
Originally Posted by oil pan 4 View Post
I have been using the block heater some now that the mornings are getting frosty.
Unfortunately I do not have the instant defrost that I wanted for 2 reasons.
The electric coolant pump circulates the coolant through the element too fast and with the engine off the vent controls have no vacuum to actuate the fan selector so the default mode blows all the air out the floor vents.
But even after only 10 minutes the engine is nice and warm.
If the blower air would go to the defrost vents the heater would only need to be on for maybe 5 minutes before it would start to melt frost.

The heater element draws 23.8 amps.
Cool!

Get a small vacuum pump and switch?
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Old 11-19-2015, 05:11 PM   #39 (permalink)
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Can you put a rheostat or pulse width modulator on the pump and slow it down?

Also, for vacuum all you may need is a vacuum reservoir with a manual valve and a check valve. You may not even need the manual valve if your system isn't leaky.
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Old 11-20-2015, 12:15 AM   #40 (permalink)
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Why slow down the rate of power flow?
If anything its not enough.

Eventually I will have an electric vacuum pump.

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1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
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