300tdi Coolant Leak - Defender Source
Defender Source  

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


Reply
 
Thread Tools
  #1  
Old April 17th, 2009, 06:32 AM
Lee
Status: Offline
Lee O
95 NAS D-90 300Tdi
Member
 
Join Date: Jun 2007
Location: Wilton, NH
Posts: 43
300tdi Coolant Leak

I've got a coolant leak in my 300tdi (95 NAS D-90), and for the life of me can't find it. No puddles or anything, but I can smell it after driving and need to add coolant approx once a week.

There's no oily mist on my windshield when I run the heater and the oil looks fine.

Thanks for any thoughts.

-Lee
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old April 17th, 2009, 07:52 AM
enjoi1968's Avatar
enjoi1968
Status: Offline
Blake Pendleton
98 D1
Member
 
Join Date: Feb 2009
Location: Frederick, MD
Posts: 307
Pressure test? Not too familiar with the 300TDi, but that should be a reasonable place to start.
Reply With Quote
  #3  
Old April 17th, 2009, 08:06 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
where do you smell it? the exhaust or under the hood?
__________________
Legend in My Own Mind.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old April 17th, 2009, 11:46 AM
discotdi
Status: Offline
Todd Miller
Land Rover
Member
 
Join Date: Feb 2008
Location: Fairburn, GA USA
Posts: 1,029
how about the "p" gasket i think between block and front cover. they are suppose to be notorious for leaking and hard to see.
Reply With Quote
  #5  
Old April 17th, 2009, 12:36 PM
Viton's Avatar
Viton
Status: Offline
Deaf Ember
Smart 4x4
Member
 
Join Date: Jan 2009
Location: La
Posts: 1,231
Any smell in the cab? Might be a small leak in the heater core.

Dennis
Reply With Quote
  #6  
Old April 17th, 2009, 01:58 PM
revor's Avatar
revor
Status: Offline
Keith Kreutzer
Old beat up 110
D-90 Source Vendor
 
Join Date: Sep 2003
Location: Longmont, Colorado
Posts: 998
I've got a similar problem, a tiny (a few drops) only in the driveway. It drips off the right side bellhousing bracket, can't be the heater core it's RHD. I smell it occasionally.
__________________
Keith

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



Big, Red and ... aaa Red..
Reply With Quote
  #7  
Old April 17th, 2009, 05:40 PM
discotdi
Status: Offline
Todd Miller
Land Rover
Member
 
Join Date: Feb 2008
Location: Fairburn, GA USA
Posts: 1,029
Land Rover 300 TDi Water Pump 'P' Gasket

This is the gasket that fits behind the water pump on all Land Rover 300TDi engines and is commonly known as the 'P' gasket.


It is common for this gasket to fail causing a slight weep at first of coolant down the engine block, behind the alternator.
Reply With Quote
  #8  
Old April 17th, 2009, 09:13 PM
Lee
Status: Offline
Lee O
95 NAS D-90 300Tdi
Member
 
Join Date: Jun 2007
Location: Wilton, NH
Posts: 43
I smell it when I get out of the cab and in the engine bay. I never smell it in the cab. I'll check the P gasket. Thanks for your help!
Reply With Quote
  #9  
Old April 20th, 2009, 10:28 AM
66rover99's Avatar
66rover99
Status: Offline
Dave Blair
66-88 95-110 99-100
Member
 
Join Date: Apr 2009
Location: Armstrong, BC
Posts: 3
Registry
Might also try another radiator cap. I had a similar leak on a feshly rebuilt 200tdi, only showing a few drops on the driveway each morning.

A local indy Land Rover mechanic said to check the plastic screw-on rad cap. He said he's seen a number that didn't release pressure until over 30 psi, which caused slight weeping from either the head gasket or through various other gaskets, like the P gasket. I put a different cap on mine and immediately the problem stopped, and within a couple of days any signs of wetness disappeared. My fingers are still crossed, but so far I think that's beat the problem.

I'd try an new cap before going to a lot more effort. Good luck.

Dave
Reply With Quote
  #10  
Old April 20th, 2009, 08:56 PM
junkyddog11's Avatar
junkyddog11
Status: Offline
oil soaked filter
95 RRC 300tdi
Member
 
Join Date: Mar 2006
Location: No. Berwick, Maine
Posts: 1,253
Lee, you'll usually see coolant on top of the front axle on the driver side.

The gasket goes right here
Attached Thumbnails
Click image for larger version

Name:	P9010152.JPG
Views:	454
Size:	72.1 KB
ID:	18880   Click image for larger version

Name:	P9010153.JPG
Views:	361
Size:	75.1 KB
ID:	18881  

__________________
Matt Browne


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
new expansion complete. Not only are we the only Rover shop in Eliot Maine...now we're also the biggest.

"Dedicated to the resurrection of junk through engineering?"
Reply With Quote
  #11  
Old April 22nd, 2009, 10:46 PM
Lee
Status: Offline
Lee O
95 NAS D-90 300Tdi
Member
 
Join Date: Jun 2007
Location: Wilton, NH
Posts: 43
Bingo! Looks like it's the water pump gasket.

Easy job?

Thanks for your help guys!

-Lee
Reply With Quote
Reply

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

Tags
300tdi, coolant, tdi

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
COOLANT LEAK, PLEASE Read this and help if you can...Thank you!! norros Defender Technical Discussions 15 December 21st, 2008 12:18 PM
Coolant Leak - Help! mlw911 Defender Technical Discussions 6 March 15th, 2006 11:08 AM
Coolant hose leak - cure in a can question michael15 Defender Technical Discussions 3 May 21st, 2005 11:36 PM
coolant leak jperakis Defender Technical Discussions 2 February 27th, 2005 02:39 AM
Small coolant leak near distributor Neo Defender Technical Discussions 4 May 4th, 2004 01:44 PM


All times are GMT -5. The time now is 05:22 PM.


Copyright