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lambert.the.farmer



Member Since: 11 Apr 2012
Location: harrogate
Posts: 2006

England 1998 Defender 90 300 Tdi PU Rutland Red
300 tdi rebuild
My engine has 137k on it, to be generous it marks it's territory or rather it s seals are going. How well do these engines respond to being rebuilt I'm thinking new big end and crank shells, a full set of seals and gaskets and a set of rings. I know I could shove a lower miles disco motor in and move the turbo but it is a matching number car which could become important if the threatened eu thing comes to pass. Rhubarb and custard let fly with their secret weapon.
Post #168648 15th Sep 2012 9:37pm
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Retroanaconda



Member Since: 04 Jan 2012
Location: Scotland
Posts: 2656

Scotland 
137k miles is barely run it, I wouldn't worry about an internal rebuild.

Just find the oil leaks and fix them, problem solved Smile
Post #168712 16th Sep 2012 1:31pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8582

United Kingdom 
Our 300 TDi has 203k miles on the clock, ok we have just had to do head gasket as got split hose and was trying to get off motorway to service station.

Apart from changing hoses if they are getting old, timing belt as required, only change gaskets as required.

Our 300 engine has had a hard life, regular oil changes, honing marks are still visible in cylinders.


We are not considering rebuilding engine yet.


Brendan
Post #168714 16th Sep 2012 2:47pm
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lambert.the.farmer



Member Since: 11 Apr 2012
Location: harrogate
Posts: 2006

England 1998 Defender 90 300 Tdi PU Rutland Red
Is there then any merit in going for genuine seals for sump and rocker cover etc or are a combination of britpart and silicone goo as good as owt? Rhubarb and custard let fly with their secret weapon.
Post #168766 16th Sep 2012 7:09pm
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wslr



Member Since: 18 Jul 2010
Location: Wellington, Somerset
Posts: 581

United Kingdom 
A friend of mine running an independent Bath way, while chatting last week, mentioned the Genuine Part 300tdi rocker gaskets don't fit. Just as an FYI, so probably worth checking beforehand.
Post #168769 16th Sep 2012 7:17pm
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lambert.the.farmer



Member Since: 11 Apr 2012
Location: harrogate
Posts: 2006

England 1998 Defender 90 300 Tdi PU Rutland Red
That's worth knowing. Rhubarb and custard let fly with their secret weapon.
Post #168770 16th Sep 2012 7:24pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8582

United Kingdom 
Well we have had genuine ones fitted this week no problem. I would be very surprised if genuine ones did not fit properly.

As for aftermarket gaskets I would look carefully at the reputation of the gasket manufacturer concerned.

Yes you might save a few £ on cost of gasket, however if it does not seal properly how many more hours work will be involved in changing it again?


Brendan
Post #168777 16th Sep 2012 7:35pm
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Retroanaconda



Member Since: 04 Jan 2012
Location: Scotland
Posts: 2656

Scotland 
Genuine, or do it again before it's due. Your call.
Post #168781 16th Sep 2012 7:45pm
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wslr



Member Since: 18 Jul 2010
Location: Wellington, Somerset
Posts: 581

United Kingdom 
That batch came through MJ Fews, and was done 2 weeks ago. Even the second one sent out was incorrect. Third was OK.
Post #168815 16th Sep 2012 10:01pm
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DarrenJ



Member Since: 07 May 2012
Location: North Beds
Posts: 312

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Stornoway Grey
When I did the sump on my 300TDi I used a form of silicon from the stealers, not a drip since in about 4-5yrs.

My 300 (Disco) has done 109k started on the button after sitting for a month the other day and not a drip from it, a cracking engine and as others have said, barely run in. After listening to its engine note for 11yrs I quite miss it now with the Puma. Darren
Post #168832 17th Sep 2012 6:58am
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paulgrs2



Member Since: 11 Dec 2011
Location: Pickering, North Yorkshire
Posts: 39

United Kingdom 1988 Defender 110 200 Tdi PU Baltic Blue
Always worth using a genuine rear crank seal and gasket.
Post #170837 25th Sep 2012 6:53pm
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Porny
Site Sponsor


Member Since: 31 Aug 2009
Location: Sutton Coldfield - West Midlands
Posts: 809

 
Re: 300 tdi rebuild
lambert.the.farmer wrote:
My engine has 137k on it, to be generous it marks it's territory or rather it s seals are going. How well do these engines respond to being rebuilt I'm thinking new big end and crank shells, a full set of seals and gaskets and a set of rings. I know I could shove a lower miles disco motor in and move the turbo but it is a matching number car which could become important if the threatened eu thing comes to pass.


Turbo - is the same on a 300tdi (disco and defender), it's a 200Tdi that has a different turbo set up.


If you are going to rebuild it - do a proper job... if it was mine:

Oversize Pistons (taking it to a 2.6), new rods, new crank unless 100%.
Fully Balanced Bottom End (inc flywheel and clutch)
Block all refaced etc and properly measured for head gasket thickness.

Head - ported and gas flowed. Can go big valve if needed.
Modified and rebuilt Injectors and Injector Pump
One of my 300Tdi Variable Geometry Turbos
Modified inlet manifold

And a few other modifications....

Then look at charge cooling rather than intercooling Thumbs Up

Will look standard, but will out perform a 2.8TGV.... and as long as you don't go wild with pump set up, will be good for another 100 k.



Ian IRB
The home of the first modified Keswick Green 90 - and the first 2.4 Puma through both the 200bhp and 550Nm barriers.

www.IRBdevelopments.com

www.facebook.com/irbdevelopments

www.integrated316.com

www.facebook.com/integrated316
Post #170852 25th Sep 2012 7:59pm
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lambert.the.farmer



Member Since: 11 Apr 2012
Location: harrogate
Posts: 2006

England 1998 Defender 90 300 Tdi PU Rutland Red
Dare I ask how much that would cost? Rhubarb and custard let fly with their secret weapon.
Post #170895 26th Sep 2012 4:04am
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Porny
Site Sponsor


Member Since: 31 Aug 2009
Location: Sutton Coldfield - West Midlands
Posts: 809

 
lambert.the.farmer wrote:
Dare I ask how much that would cost?


Er... Roughly.... around £4500 + vat

But for that, you have a better than new, blueprinted 300Tdi... Thumbs Up


Ian IRB
The home of the first modified Keswick Green 90 - and the first 2.4 Puma through both the 200bhp and 550Nm barriers.

www.IRBdevelopments.com

www.facebook.com/irbdevelopments

www.integrated316.com

www.facebook.com/integrated316
Post #170997 26th Sep 2012 12:21pm
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adafish



Member Since: 30 Mar 2009
Location: atherstone
Posts: 1384

United Kingdom 1984 Defender 110 300 Tdi DCPU Stornoway Grey
Re: 300 tdi rebuild
Porny wrote:
lambert.the.farmer wrote:
My engine has 137k on it, to be generous it marks it's territory or rather it s seals are going. How well do these engines respond to being rebuilt I'm thinking new big end and crank shells, a full set of seals and gaskets and a set of rings. I know I could shove a lower miles disco motor in and move the turbo but it is a matching number car which could become important if the threatened eu thing comes to pass.


Turbo - is the same on a 300tdi (disco and defender), it's a 200Tdi that has a different turbo set up.


If you are going to rebuild it - do a proper job... if it was mine:

Oversize Pistons (taking it to a 2.6), new rods, new crank unless 100%.
Fully Balanced Bottom End (inc flywheel and clutch)
Block all refaced etc and properly measured for head gasket thickness.

Head - ported and gas flowed. Can go big valve if needed.
Modified and rebuilt Injectors and Injector Pump
One of my 300Tdi Variable Geometry Turbos
Modified inlet manifold

And a few other modifications....

Then look at charge cooling rather than intercooling Thumbs Up

Will look standard, but will out perform a 2.8TGV.... and as long as you don't go wild with pump set up, will be good for another 100 k.



Ian
, Is this what we are doing to my Betty ? Whistle Putting Dreams on Drives at JLR Solihull..
Post #171008 26th Sep 2012 2:07pm
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