Chat & Social > The Bar - General Chat
Tdi feelin the heat
dreadnought110:
--- Quote from: "Porny" ---That's not hot....
You want to see the manifolds and the exhaust on an engine on the test beds at work when we do full load work...
They get that hot you can virtually see through them!!!
On a petrol you just dump more fuel down the exhaust (i.e. run it rich) and/or adjust the ignition timing....
But on a diesel it's the other way around... more fuel = higher temps (thus EGT)
Anything above 800 degrees on a Tdi or Td5 and you start getting towards the material limits for the cast manifold (hence why you get warped manifolds on badly tuned diesels)... much more than this and you will also find the fins on the exhaust side of the turbo will start to break up, and in extreme cases so will the exhaust valves!!
In saying that, in the short term, and for short blasts you will get away with higher temps.... I've known 300Tdi's that peak at 1200 degrees!!
Ian
--- End quote ---
where i used to work they had a rolls royce genarator set at full chat in the dark you could see the shadow of the pistons going up and down :shock: :shock:
extreme90:
now i bet that looked good
a 27kva diesel gen does that aswel in the dark after its been running all day :lol:
might have a dodge over the farm tomorrow night and take a piccy and one of my 90 after a thrash :lol:
see how much it scares me :shock:
danny
AbyssDJ:
our fan belt ripped itself to bits the other day... can i have a prize? :D been on its way for a while, along with the power steering belt.. had replacements just not been bothered to do them... gave me a bit of a push and did them today lol.
who the hell designed the alternator without one of those little square holes to fit a ratchet in?
extreme90:
the kind people at land rover :lol:
ian_s:
--- Quote from: "Redlinemike" ---
Why an EGT guage is handy :lol:
--- End quote ---
so was that a standard camera? not low light or owt?
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