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high egt's, leaky pipes?

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Old May 1, 2008 | 09:11 PM
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high egt's, leaky pipes?

lately it seems my egts have been a bit high. i towed a tractor 2 weekends ago, no prob, egts only came close to 1,000# a few times, with 20,000#. (1,000 is where i let out, as soon as i hit it, and never higher than 950 for any amount of time.)

well, it has been hitting 800around town lately with only the empty 7,000#ish trailer. seems odd, and has been taking a long time to idle down. so, today i got outta school at 1:30 as always and got to work. at 8:30 i quit and went to advance auto parts and got a little American Products oiled filter and put on in place of k+n till i get it cleaned. on the way home, it still wasnt hard to hit 800 with just the trailer driving fairly easy, but it cooled down faster. any ideas what would be causing it to be high lately, with no programming changes? REMEMBER- this all post-turbo too!

my y pipes are leaky looking too, reckon it could be part of it? how do i fix that? its not as easy as spyder boots is it?
 
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Old May 1, 2008 | 11:48 PM
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start by moving your egt probe.
There can be (remembering Rubberduck's post) anywhere from i think 200 to 500 degrees post turbo...
What makes you think leaky pipes?
 
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Old May 2, 2008 | 06:09 AM
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its oily around the rubber boots.
 
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Old May 2, 2008 | 10:20 AM
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Could be the your intake boots are leaking and your loosing boost. Take it off clean it really well with brake cleaner and put it back on with the clamps nice and tight. See where you stand. Also looks for pre turbo exhaust leaks. Those hurt boost as well. Either of those could cause higher EGT's
 
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Old May 2, 2008 | 11:22 AM
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I would say that it would be normal to have the oil residue on the lower side of the intake boots unless you have done the ccv mod.

What are you seeing for boost numbers?
 
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Old May 2, 2008 | 11:33 AM
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Farm you are right the oil is normal and doesn't mean its leaking for a fact. Good point!
 
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Old May 2, 2008 | 02:52 PM
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ok, will do! i have no ccv mod lol
 
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Old May 2, 2008 | 05:21 PM
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Originally Posted by 2 stroke man
ok, will do! i have no ccv mod lol
Yep, clean the boots up. That's probably your problem.
 
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Old May 2, 2008 | 05:50 PM
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X2 on what they said!
With the slow return to idle in the mix i will add.
Check for overfilled CC with oil, and a in range EOT sensor.

Bill
 
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Old May 2, 2008 | 07:55 PM
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Question

Originally Posted by tjbeggs
Also looks for pre turbo exhaust leaks. Those hurt boost as well. Either of those could cause higher EGT's
How can I look for pre turbo exhaust leaks?, soot, decoloration, sound??
 
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Old May 2, 2008 | 08:01 PM
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soot is the biggest indicator. If an exhaust manifold is leaking you may hear a tick sound.
 
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Old May 2, 2008 | 09:33 PM
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Thumbs up

Originally Posted by tjbeggs
soot is the biggest indicator. If an exhaust manifold is leaking you may hear a tick sound.
thanks bro.
 
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Old May 2, 2008 | 10:14 PM
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ok, will clean in the morning. how much time to do?
 
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Old May 3, 2008 | 08:51 AM
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To do the boots? Shouldn't take to long if you don't have to mess with intercooler pipes. The y-pipe boots are kind of tricky to put back on. I would say you should have both boots clean and put back together in 30 min or so.
 
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