Thermocouple Location?

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Apr 21, 2004 | 11:55 AM

#16

Haulin_in_Dixie

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Joined: Nov 2001

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From: Branchville, Alabama

Quote:

Originally posted by Alec
I have never burned up one of these engines, so maybe I have the wrong dope, but looking at the shape of the #1 air path -- it is almost "j" shaped -- supports what I have read, which is that #1 gets less air than the other cylinders.

From the FAQ at http://dodgeram.org/tech/dsl/FAQ/turbo_faq.htm

As for cooling, Hdm48 posted that he has seen a number of engines score the #6 cylinders under high HP operation due to inadequate cooling . . . the water has to flow back there past the first five cylinders.

Gasses should not get trapped around the #1 cylinder -- but this is not a condition that I am familiar with, so I can't say anything about it.

What were you doing when you toasted your engine?

Whatever, I was not looking for information, I have it.... Worked with a cummins engineer on this thing.

Apr 21, 2004 | 12:44 PM

#17

apache

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Joined: May 2003

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Geez, this is startin to sound like a Dodge vs Ferd war.

Apr 21, 2004 | 01:36 PM

#18

Alec

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Joined: Apr 2002

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From: Richmond, VA

Quote:

Geez, this is startin to sound like a Dodge vs Ferd war.

I certainly didn't mean it like that -- I was just curious -- didn't gibe with what I had seen and heard, that's all.

Apr 21, 2004 | 02:08 PM

#19

Monty

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From: Mustang, OK

Play nice fellas.

Apr 21, 2004 | 11:14 PM

#20

Bushy

Patron Saint of 1st gens

Joined: Jun 2002

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From: British Columbia, Canada

Ahhhh crap, run for it guys, it's the heat......

.........HEY LOOK>>WHATS THAT UP IN THE SKY...???????

BTW, watch out for Mony's mom, she wears an army boot and can kick some butt....

Pastor Bob....

Apr 22, 2004 | 07:21 AM

#21

Redleg

I was banned per my own request for speaking the name Pelosi

Joined: Aug 2002

Posts: 1,908

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From: Bristol Michigan

If I remember right, there is a plug on the head near the thermostat and #1 cylinder. Anybody running a temp sensor there? I may look into this myself.

OBTW, don't trust anybody that carry's a "SHINEY" gun............

Apr 22, 2004 | 01:08 PM

#22

Haulin_in_Dixie

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Joined: Nov 2001

Posts: 4,199

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From: Branchville, Alabama

Quote:

Originally posted by Redleg
If I remember right, there is a plug on the head near the thermostat and #1 cylinder. Anybody running a temp sensor there? I may look into this myself.

OBTW, don't trust anybody that carry's a "SHINEY" gun............

Yes there is a plug right at number one cylinder. Anyone that is familiar with a two tank cooling system as used on all commercial vehicles, the vapor problem is eliminated with the two tank system. The Dodge is too low to have the tank over the engine for direct gravity feed into the engine, so vapor can be trapped until circulated. The temperature sensor on an ISB measures water outlet temperature, above the thermostat, not head temperature. I am installing a mechanical gage in the head. With a cab raise I may be able to convert to a two tank system. I converted my LN7000 to a two tank system, much better system with a cross flow radiator. If a leak devolops in a single tank system with an overflow tank such as we have, the overflow can be full and the radiator low with no obvious signs showing.

With a two tank system you have a tank above the engine level. The main fill is to this tank. A large fill line goes from the bottom of the tank to a high point of the engine cooling system. The radiator is sealed and has a small hose from the top for an air bleed and it goes back to the fill tank. The coolant is gravity fed to the engine and the small hose from the radiator constantly circulates a small amount of coolant bleeding off any air from the radiator. A sight glass in the tank shows that you are either full of coolant or not. This system eliminates all trapped air from the system.