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Defender 300tdi: Few questions

 
 
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jaycey001
Gate Opener


Joined: 17 May 2012
Odometer: 29




PostPosted: Fri Jul 05, 2013 5:49 am    Post subject: Defender 300tdi: Few questions Reply with quote

Hi

I have owned my Defender for a few months now, Full major service when brought it including gear oils etc. Its on 204,000 and starts and runs well BUT i have recently been driving it a lot for work and it is developing a few issues that id like some advice on.

1. ive noticed that i get a bit of blow by from the oil filler cap when the engine is hot, i also feel like the engine looses power the longer i drive it, not by alot but it is noticeable. I.e it will happily pull up to 35 in 3rd gear when cold but seems to struggle to get to 30 in 3rd when hot. could this be caused by the blow by, its not a huge amount and doesn't blow the filler cap off but is visible.

2. when in 3rd gear, if i take my food of the accelerator (at any speed down to 20mph) i get a sharp judder, and the car seems to surge on engine braking. (not engine surging just the car jolting forward and holding back) changed fuel filters but no change, feels like it may be starting to do it in 4th gear as well now. It doesn't happen when the clutch is down only when engaged.

Any advice would be great and very helpful!

Also just out of interest what is the average life span of the clutch on a hard worked defender.

Many thanks
James.
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discosteve
Just got MTs


Joined: 01 Jan 2012
Odometer: 336
Location: Sunny Barnstaple at weekends on the road during the week


1997 Land Rover Defender

PostPosted: Fri Jul 05, 2013 8:43 pm    Post subject: Reply with quote

If its every been in the possession of a squaddie or the military then the clutch will only last about 20,000 miles Rolling Eyes

Steve

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when i die i want to go peacefully like my grandad in his sleep not screaming like the passengers in his car !!!
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scotty wong
Just got MTs


Joined: 22 Nov 2008
Odometer: 472
Location: kent



PostPosted: Sat Jul 06, 2013 6:41 am    Post subject: Reply with quote

Check the sediment filter and the turbo hoses/intercooler and make you have water moving about(ie not blocked hoses or iffy thermostat)
__________________________________
if the truth can be told so as to understood it will be believed. jeep xj
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jamie_grieve
Articulating


Joined: 19 Aug 2009
Odometer: 876
Location: South Scotland



PostPosted: Tue Jul 09, 2013 6:56 pm    Post subject: Reply with quote

I'd have a look at the filters too as suggested. At that age the injection pump might be a bit tired and want the fuel turned up a bit to compensate. Does it blow any black smoke ever? You might be losing some boost as well through a holed intercooler or leaking hose.
The juddering might also be a propshaft related thing. Check the UJ's and alignment of the props too.
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( Gray )
Articulating


Joined: 15 Apr 2012
Odometer: 597




PostPosted: Tue Jul 09, 2013 11:19 pm    Post subject: Reply with quote

Check fuel lines for airleaks
Check if waste gate is sticking.
Check diaphram in the actuator, and pipes from there to injector pump for splits/blockages.
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