The Definition of "Clag"..

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16CSVT2700

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Could someone please show me the true definition of clag please? I've looked through many fotopic sites out of pure interest and the number of photos I've seen which have been labelled as "XXXXX clagging" is interesting to say the least..

According to some people even the smallest wisp of blue exhaust is "clag".. Which of course it is not!

Heres a few examples from my own fotopic site:
http://50149.fotopic.net/p26757712.html - Clag
http://50149.fotopic.net/p26275293.html - Not clag

A few examples from other fotopic sites:
http://60059.fotopic.net/p23823801.html - Definately clag!
http://nicholas3820.photos.us.com/p26813751.html - Definatly NOT clag!!

And please people.. Steam locomotives do not clag!! They smoke.. always have smoked, and always will smoke. Only diesel locos clag..

The reason for this is because too many times I've seen the word CLAG and I've expected to see a pic with a HELLFIREMYLORDZHAULAGE!!!!!!!!!!!!!! clag-a-thon in it, only to be disappointed by seeing a pic of a 153 coughing its guts up and failing badly in the process :roll:



So then ladles and jellyspoons.. may I have your views on.. what's clag and what isn't?
 
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AlexS

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Clag = dust, dried up oil and other associated bits of junk that have collected in the exhaust manifold being blowing out of the roof with a white to black colouration, in thick opaque clouds.

Not clag: Normal engine exhaust, which is a pale blue translucent colour.
 

16CSVT2700

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Thank you sire! The constructive answer I was expecting! Too many times normal exhaust has been labelled as clag.. personally I think "clag" is an overused term.. anyone agree?
 

Sprog

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Clag is clag, and when i say clag, i really mean clag! Its about as claggy as clag can be and is clagtastically clagtastic!

Get me....................!?? ;)
 

16CSVT2700

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Sprog said:
Clag is clag, and when i say clag, i really mean clag! Its about as claggy as clag can be and is clagtastically clagtastic!

Get me....................!?? ;)
Just ignore it.. it's not real 8)
 

Julian G

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tubechallenger said:
66s don't clag! :D
So then What's this then ;)
I posted said:
Here are my latest shots of Cl66709 leaving Brighton Sheds
GBRF Cl66709 prepares to leave Brighton
Cl66709 makes an appearance by clagging
RESULT TO PROVE a cl66 CAN CLAG
 

Techniquest

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43003 that one morning in Swansea on the 0328 (departed two minutes earlier than the usual 0330 due to engineering works)...NEVER have I seen a 43 act in the same manner as that beast on departure since. I haven't got a picture, I didn't take my camera on that day, but you'll have to trust me when I say it was some heavy-duty clag.
 

16CSVT2700

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Aye, exhaust!

Clag is thick clouds of white to black smoke as defined by AlexS in the second post on this thread.
 

metrocammel

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Clag is sometimes mixed up with "Thrash". For example, the Cl37 on the tanks in an earlier post was described as "clagging", whereas in reality it was probably bleedin' loud (which is the "thrash", despite only giving out a few wisps of exhaust).
I beg to differ about the whole "causes" of clag however, for example I was stabled at Etches Park last night, and a ped on the Serco test train IMO "clagged off" next to us, though the smoke was the "blue exhaust" colour, but it still managed to cover all the yard in a diesely blue fog. But with Peds they are OK in the noise / clag departments... but they are truly pedestrian when on the move...or as people say (sing-a-long) "Slowly going nowhere!"
 

ChrisCooper

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No, it's not a Kettle, it's a Western
http://chriscooper.fpic.co.uk/p27832708.html

HST clags away from York
http://chriscooper.fpic.co.uk/p27832710.html

More Western Clag
http://chriscooper.fpic.co.uk/p27832707.html

47 Clags away from Yarmouth
http://chriscooper.fpic.co.uk/p27832702.html

Slightly miss-timed claggy HST.
http://chriscooper.fpic.co.uk/p27832701.html

Just to show they can do it, 156 clag
http://chriscooper.fpic.co.uk/p27832704.html

Even rarer, Voyager clag (more smoke, it was oviously rarther sick).
http://chriscooper.fpic.co.uk/p27832705.html
 
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