[AT] Canola to diesel

[Larry D Goss]

I had one of those B-B's burn off in a pre-chamber once, George.  It still 
ran and fired on that cylinder, but it had to "start on three" until I 
replaced the pre-chamber.  Even in its burned-off condition, it was still 
larger than the outlet to the pre-chamber, so I didn't loose it into the 
cylinder itself.

Larry

----- Original Message ----- 
From: "George Willer" <gwill at gwill.net>
To: "'Antique tractor email discussion group'" 
<at at lists.antique-tractor.com>
Sent: Sunday, February 04, 2007 12:54 PM
Subject: RE: [AT] Canola to diesel


> Mike,
>
> Maybe I was a bit hasty... maybe it's only the auto engines I'm quite
> familiar with that aren't true diesels.  They are NOT compression 
> ignition,
> a requirement for diesel, as I understand the term.  They have a throttle
> plate that restricts the intake severely at low speeds, resulting in
> compression ratios far below those required for true diesel operation...
> possibly less than 3:1 at idle.  This throttle plate is not to be confused
> with the safety plate working like a check valve to prevent the engine 
> from
> running backward.
>
> They require glow plugs for starting and a heated ball pin (acting like a
> constant glow plug) for continued running.  A broken ball pin will make 
> the
> cylinder unable to fire.  The injectors feed into a pre-chamber containing
> both the glow plug and the heated ball pin.  The combustion begins there 
> and
> is forced through an orfice into the main combustion chamber.
>
> It's understandable that many Mercedes owners aren't aware of the odd
> ignition system since it's unlikely many even consider working on them. 
> Of
> the eight I've owned 6 have been "diesels" and I've completely rebuilt 
> most
> of them.
>
> George Willer
>
>> -----Original Message-----
>> From: at-bounces at lists.antique-tractor.com [mailto:at-
>> bounces at lists.antique-tractor.com] On Behalf Of Mike Sloane
>> Sent: Sunday, February 04, 2007 12:50 PM
>> To: Antique tractor email discussion group
>> Subject: Re: [AT] Canola to diesel
>>
>> Mercedes aren't true diesels? You have to explain that one, George!
>> Mercedes Benz (aka Daimler Benz) probably makes more diesel engines
>> (car, trucks, marine, industrial, etc.) than any other single
>> manufacturer in the world, and if they aren't "true" diesels, it will be
>> a surprise to a LOT of owners/operators. :-)
>>
>> Mike
>>
>> George Willer wrote:
>> > Mercedes has different ideas about diesel fuel... possibly because they
>> > aren't true diesels some other concoctions are suggested.  They even
>> endorse
>> > adding a significant amount of gasoline to the diesel in cold weather 
>> > to
>> > improve starting.
>> >
>> > George Willer
>>
>> --
>> Mike Sloane
>> Allamuchy NJ
>> <mikesloane at verizon.net>
>> Website: <www.geocities.com/mikesloane>
>> Images: <www.fotki.com/mikesloane>
>>
>> It's hard to argue against cynics - they always sound smarter
>> than optimists because they have so much evidence on their side.
>> -- Molly Ivins 1944-2007
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