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  #46  
Old 01-12-2007, 03:04 PM
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Join Date: Dec 2005
Location: Ashland, MA
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Wow that's cold

We had +12 F in Northwest Washington, which is very cold for here. We are running B-85 in both vehicles so they spend the night in the garage. I'm pretty sure I wouldn't start well at - 30 C either, poor car.

Good luck starting the rest of the winter.

Chris
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  #47  
Old 01-12-2007, 03:25 PM
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i think it was one of my CAT engines in a truck in the 70's hada screw in can of ether in the air intake for measured shots so as to not wash down the cylinders TOO bad but i have had welding torches held to bulldozers too
Another case of too many engines too many years and too many beers No one in AA has yet said I dont need to stay
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  #48  
Old 01-12-2007, 07:47 PM
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Cap. Monk: My '88 Wanderlodge/Cat 3208 had an ether injection system, I have a used assembly in the shop, metered shot of ether with no oil pressure only.

Got_The_Benz: A magnetic oil-pan heater would make more sense to me than an immersion heater for the fuel tank, easy to install. Once the engine is running the engine should heat the fuel some via the return fuel, plus cabin air passing through the trunk.

Idling a Benz for extended periods would be an emergency only method IMO, they don't burn enough fuel at idle to keep the cylinders warm and will carbon up badly, eventually possibly causing ring sticking and permanent damage.
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  #49  
Old 01-12-2007, 08:18 PM
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Join Date: Jan 2004
Location: Olive Branch, MS
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Random idea, and figured it is pretty relevant here...

I've never installed a block heater (just replaced one), but from hearing about others installing them you remove a freeze plug from the engine and install it. Would it be possible to have two block heaters? Or is there only one freeze plug that it can be installed in?

Having two block heaters might be useful where it gets to -30 (geeze thats cold!!!), and I'd like it so that it would warm up the car quicker (yes I know its pulling more power ) and get it to a higher temp. I really like the 90-100F starting water temp... would be nice to get it a touch higher.
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  #50  
Old 01-12-2007, 09:01 PM
Tom Scordato
 
Join Date: Feb 2005
Location: Bellefonte PA
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Tow it to a heated garage and thaw it out over night. Start it and drive it hard. If the temp stays at that level, keep it idling on high and filled with fuel. Extra set of keys and lock it if you are worried about it being stolen. At those temps a 400 watt block heater typically keeps coolant 50 degrees above ambient. At 30 below however I am convined the laws of thermo and physics break down as we know them

In future do what I do. I have a battery warmer from walmart (a small electric heating pad WITHOUT auto shut off). A 200watt magnetic lube heater and a 400 watt block heater. When it gets down around 10 to 0 I put on this extra armament. It it gets below 10 below zero, I will run the car at idle when I park it.

Regards Tom
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  #51  
Old 01-12-2007, 09:11 PM
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Location: far n.w. wisconsin
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let them run inthe extreme cold but . . .

its true its not good to let them idle for long periods because they get cold, however if you raise the idle speed to say 1000 or so for this period of time, they will make a little more heat and it will not soot up so bad. i would not operate the passenger compartment blower motor when its running overnight as this just adds to the cooling effect of the system. i use to run my 190 (i think it was,)maybe it was a 200, for most of the month of january. i shut it off to change filters etc but for basic operations it just idled a little faster than normal. the manual idle control on the dash was great. . . .had no problem with it at all. of course they only burn enuf fuel to make power to get the mass of the engine to rotate. . . (lbs of fuel per h.p. hour) and that can be very little. . . cheaper than plugging in a couple electric heaters almost. . . . i also tried to keep it warm by covering the engine with a blanket but one night it got windy and the edges of the blanket got caught up in the damn fan . . .oops ! this was MANY years ago. much smarter now. have a garage and a lower hose heater.
davidh
the old guy
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  #52  
Old 01-13-2007, 12:28 AM
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Why is it that everyone says the engine will get cold if left idling and carbon up? My engine if left idling will actually heat up to operating temperature by itself, with the heater running. Isn't that what the thermostat is for? Actually, if the AC compressor is left running, it will heat the motor to the point that the cooling fan will cycle.

Is it just my motor?
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  #53  
Old 01-13-2007, 01:49 PM
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Quote:
Originally Posted by deerefanatic View Post
Why is it that everyone says the engine will get cold if left idling and carbon up? My engine if left idling will actually heat up to operating temperature by itself, with the heater running. Isn't that what the thermostat is for? Actually, if the AC compressor is left running, it will heat the motor to the point that the cooling fan will cycle.

Is it just my motor?
Any diesel that runs at idle or low rpms for extended periods will carbon up. They don't get hot enough to blow the carbon out. I don't see a problem with it just run her through the gears in the morning and all the carbon will blow out.
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  #54  
Old 01-13-2007, 01:57 PM
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My 85 TD wouldn't start yesterday morning. It was 5 below. It is overdue for a valve adjustment and it may have a week glow plug. When it didn't hit on the first few turns, I stopped. I waited until noon when it was about 3 degrees. Put 10 charcoal briquettes under it for about half an hour and then cranked it until it started. Took about 30-40 seconds of cranking and running on a cylinder or two before it kicked off.
I don't think the charcoal made much of a difference. I concluded it would probably take about 30 or 40 briquettes a couple of hours to make much of a difference in the block temperature.
I'm not about to adjust the valves in this temperature--it's not supposed to get above 18 degrees until the end of the week and I don't have a garage, so it's off to buy a magnetic pan heater as a temporary solution.
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  #55  
Old 01-13-2007, 05:59 PM
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When I owned my trusty diesels, both Benz and a Peugeot, I found the local fuel distributors mixed the diesel before delivery. Ask the station what there mix is before diluting yourself. On the 240D there is a big fuse attached to the driver's side fire wall. It's a metal strip. I had trouble starting, removed and cleaned the connections and it fired up. This made a huge difference. I would also let the glow plugs cycle a few times before cranking her over. There's nothing like the sound of a diesel starting up in the morning. Also carry a long extension cord. You can always find a out let behind vending machines. On realy cold days skiing, I'd just leave the car running in the parking lot. I new it was OK when they would announce over the loud speaker my plate number to let me know my car was running. Also a spare battery in the trunk works in a pinch. On one desiel I had a 3 way boat switch hooked up to the spare batt. I could use both to start, charge both at the same time and run on one when I was going. This also worked well when parking and listening to the stereo for a while, you'll never be caught with a dead batt., just your pants down!
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  #56  
Old 01-13-2007, 11:27 PM
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Too cold?

Someone placed a post on the forum a while back, to see how cold, from a totally, totally cold start, have members started their cars. Someone said their car sat for a week in some pretty cold temps, and with the glow plugs only, the car started. Search the forums for 'cold starts', and that might come up.

jeff
1991 300d, 100k
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