300 Td1 egt rises faster than the tach - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old March 16th, 2009, 08:38 PM
cdb
Status: Offline
Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
Member
 
Join Date: Jun 2006
Location: Oregon, USA
Posts: 775
300 Td1 egt rises faster than the tach

I just am noticing lately, that when I floor it through the first 4 gears (R380) the exhaust gas temperature runs up to 800-900 degrees but when I shift into 3rd and continue to floor it it quickly jumps through the yellow and into the red (1,200 degrees) if I don't back off. Same in 4th. I was running the motor up to 4,000 rpm before I shifted from first or second, but in third at about 3,000 plus rpm the EGT gauge was rocketing into and through the yellow range.
Does this sound right?
Engine temp is fine.
This is a 1994 NAS D90 with a 300 TDi motor with supposedly 40,000 miles on it. The Injection Pump has been reworked for higher pressure, the turbo wastegate pops off at 16 lbs. I'm running a 2 1/2 exhaust - if these make a difference.

Thanks for any ideas,

Clark
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old March 16th, 2009, 09:02 PM
Buckon37s's Avatar
Buckon37s
Status: Offline
Buck
Re-Fendered 90
Member
 
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,376
Thats not unusual. I recently hit 1300 degrees simply by flooring it and downlugging the engine (in 5th too early). The motor responds to how you drive it. If you keep the rpms up, it will run cooler. Also, there seems to be that least 1/2 of pedal that changes the sound of the motor when you get on it. If that makes any sense. That will make the egt's go up very quickly. IMO, its worth dealing with for the extra power.

PS: Don't run anything in front of your radiator/intercooler. By removing my fog lights, it made a noticable difference.
__________________
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PSC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DJ Safety
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
West Coast Rovers
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reel Driveline
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Made it further than half of the other guys, but the Hammers won.
Reply With Quote
  #3  
Old March 16th, 2009, 10:05 PM
cdb
Status: Offline
Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
Member
 
Join Date: Jun 2006
Location: Oregon, USA
Posts: 775
Sounds good Buck. I hardly ever use those offroad lights anyway.

Clark

Follow-up Post:

Moved the offroad lights to the sides of the winch. Looks much better (less like a frog) and out of the airflow. Now if I can find someone to trade a Warn winch with a separate solenoid for my XD900 I'll have a completely clear airflow.

Clark
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old March 16th, 2009, 11:26 PM
evilfij's Avatar
evilfij
Status: Offline
evilfij
I have never seen a rover in person
Member
 
Join Date: Oct 2003
Location: on the internet
Posts: 14,688
Do you have a gas muffler in the system?
__________________
*not legal advice*
Reply With Quote
  #5  
Old March 17th, 2009, 09:48 AM
cdb
Status: Offline
Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
Member
 
Join Date: Jun 2006
Location: Oregon, USA
Posts: 775
Ron......
Re: gas muffler?
I'm not sure. I did have a small MagnaFlow muffler installed to bring down the crackle of the exhaust a bit. It must have been a gas muffler.
Are you thinking it has clogged up?

Clark
Reply With Quote
  #6  
Old March 17th, 2009, 10:09 AM
TDI Guy's Avatar
TDI Guy
Status: Offline
Randy
2015 LR4
D-90 Source Vendor
 
Join Date: Sep 2003
Location: NJ
Posts: 4,573
Registry
I removed the lights on the bumper and that helped a bit in the heat of the summer as well....

As for the muffler, I would get rid if it. NRP has a rear tail section that I have used that is SS and has 2 flow through resonators only... no muffler and 0 back pressure.. If its not a flow through design, it will clog with soot and you will eventually melt the motor.
__________________
Legend in My Own Mind.
Reply With Quote
  #7  
Old March 17th, 2009, 10:58 AM
Buckon37s's Avatar
Buckon37s
Status: Offline
Buck
Re-Fendered 90
Member
 
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,376
I run a 3in straight pipe with one bend. My egt's still heat up like described. I noticed more power and quicker "recovery" with the new pipe. But, no egt change as far as upper temperature and quickness of heat buildup. Sounds badass though.
__________________
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PSC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DJ Safety
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
West Coast Rovers
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reel Driveline
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Made it further than half of the other guys, but the Hammers won.
Reply With Quote
  #8  
Old March 17th, 2009, 11:01 AM
KevinNY's Avatar
KevinNY
Status: Offline
Kevin Buckley
1973 coiler
Member
 
Join Date: Apr 2005
Location: Guilderland,NY
Posts: 1,460
Quote:
Originally Posted by cdb
Ron......
Re: gas muffler?
I'm not sure. I did have a small MagnaFlow muffler installed to bring down the crackle of the exhaust a bit. It must have been a gas muffler.
Are you thinking it has clogged up?

Clark
I run one of those straight through magnaflows as well, I don't think you have anything to worry about with it. It's a straight pipe with some packing around it.
__________________
'73 SeriesIII coiler,"The Goat", Daihatsu 2.8TD,Santana,Ashcroft,ARB's,etc., now SOLD
Reply With Quote
  #9  
Old March 18th, 2009, 03:02 PM
cdb
Status: Offline
Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
Member
 
Join Date: Jun 2006
Location: Oregon, USA
Posts: 775
I think Buck is right. Unless I want to dial down the IP I'll have to live with a rapidly rising exhaust gas temperature if I stomp on it. It is a diesel after all.
I did check and there is no back pressure in the MagnaFlow muffler like Kevin said.
However, when they were checking the backpressure at the muffler shop they mentioned that it fluctuated at idle like I had a vacuum leak. But he also said a diesel doesn't pull much vacuum. Any idea, anyone, what would cause that?

Clark
Reply With Quote
  #10  
Old March 18th, 2009, 11:25 PM
crown14's Avatar
crown14
Status: Offline
Verticalscrote
Volkswagen Super Beetle
D-90 Source Vendor
 
Join Date: Jul 2006
Location: 44 Nas Row, Inter Net, USA
Posts: 3,285
Registry
I think you should turn the pump down some unless you are going to upgrade the intercooler. I tweaked my IP and had similar temp readings, I backed it back down a little and the performance didnt drop any but the EGTs did. Then I scrapped the magnaflow and the EGTs stayed a little cooler and when they do climb, they cool more quickly.
Reply With Quote
  #11  
Old March 19th, 2009, 02:20 AM
Buckon37s's Avatar
Buckon37s
Status: Offline
Buck
Re-Fendered 90
Member
 
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,376
Quote:
Originally Posted by crown14
I think you should turn the pump down some unless you are going to upgrade the intercooler. I tweaked my IP and had similar temp readings, I backed it back down a little and the performance didnt drop any but the EGTs did. Then I scrapped the magnaflow and the EGTs stayed a little cooler and when they do climb, they cool more quickly.
I have an uprated intercooler. It didn't really seem to help. The no muffler exaust did cool more quickly, but the top temperature still stayed up there.

I think the bottom line is that it will behave like this. Keep and eye on it and drive accordingly. If you keep the temperature at 12 or under, the engine doesn't mind. You can hit 1300 for brief periods. I know that for sure.
__________________
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PSC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DJ Safety
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
West Coast Rovers
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reel Driveline
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Made it further than half of the other guys, but the Hammers won.
Reply With Quote
  #12  
Old March 19th, 2009, 08:09 PM
crown14's Avatar
crown14
Status: Offline
Verticalscrote
Volkswagen Super Beetle
D-90 Source Vendor
 
Join Date: Jul 2006
Location: 44 Nas Row, Inter Net, USA
Posts: 3,285
Registry
Buck in your case there is always the strong possibility that your pump is adjusted so much towards the extreme that an intercooler the width of the entire front end would not have a dramatic effect.
Reply With Quote
  #13  
Old March 19th, 2009, 08:52 PM
ajh
Status: Offline
Andrew J. Hutton
1993 Defender 110 200TDI
Member
 
Join Date: Oct 2007
Location: Ottawa, Ontario, Canada
Posts: 735
Propane injection?
__________________
--

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
- Parts & Accessories Imported Weekly

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
- Like us on Facebook for a discount on parts!

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
- Handmade Soap ideal for Mechanics!
Reply With Quote
  #14  
Old March 19th, 2009, 09:05 PM
Buckon37s's Avatar
Buckon37s
Status: Offline
Buck
Re-Fendered 90
Member
 
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,376
Quote:
Originally Posted by crown14
Buck in your case there is always the strong possibility that your pump is adjusted so much towards the extreme that an intercooler the width of the entire front end would not have a dramatic effect.
Pendy did my adjustment. It is not rediculous.

The advantages of the intercooler are vastly overstated. They do good, don't take it the wrong way, they are just not what people make them out to be. I simply don't think there is a way to avoid heat when you up the pump. But if you can keep it around 1100, your good to go.

Follow-up Post:

Quote:
Originally Posted by ajh
Propane injection?
Yeah, I guess. But your going to be into it for at least $2000 with a DOT tank and non-retarded system. I couldn't justify it, and I tried.
__________________
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PSC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DJ Safety
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
West Coast Rovers
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reel Driveline
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Made it further than half of the other guys, but the Hammers won.
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
ac

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
300 Tdi Egt Q?????? Buckon37s Defender Technical Discussions 37 July 11th, 2012 11:26 AM
tach question, sorry if redundant (warning) Neo Defender Technical Discussions 5 October 7th, 2005 04:24 PM
1995 SW 300 Tdi neo812 For Sale - Vehicles 6 July 31st, 2005 04:55 PM
1995 Land Rover NAS Defender 90 ST (300 Tdi) MDS For Sale - Vehicles 7 March 4th, 2005 08:55 PM


All times are GMT -5. The time now is 01:21 AM.


Copyright