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Jeebs



Member Since: 23 Oct 2015
Location: North West
Posts: 197
United Kingdom 1995 Defender 90 300 Tdi HT Barolo Black
Injector leak?
I’ve been checking over the 90 as chances are I’ll be using it to get to work on NYD, as I don’t fancy killing my self in a rwd 360bhp BMW in this weather.

While checking in the engine bay, I noticed whilst running there is a steady drip of diesel from the circled area on injectors 1 and 2. I’ve not noticed this before and half wonder if it’s due to the cold and everything having contracted and bit.

It’s a 207k 16L 300tdi.

Is it the fuel return pipes that have just got old and worn or are the injectors shot?


Click image to enlarge
Post #875238 30th Dec 2020 5:49pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554
MJN100910
Pipe-spill return fuel injection

ERR1304
Washer-sealing, Engine Code 11L 2.5 TDi Diesel Turbo Manual QTY8
300Tdi

fuel return pipes do split and leak and banjo copper washer too if High presser metal fuel pipe make shore they nipped up 1/4 turn but do not overtighten banjo bolts



Click image to enlarge

(Red ) but do not overtighten banjo bolts

(Orange ) High presser metal fuel pipe

Last edited by dorsetsmith on 30th Dec 2020 7:39pm. Edited 6 times in total
Post #875245 30th Dec 2020 6:03pm
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Jeebs



Member Since: 23 Oct 2015
Location: North West
Posts: 197
United Kingdom 1995 Defender 90 300 Tdi HT Barolo Black
Thanks Dorset.

Is it 4 of the washers? One per cylinder?
Post #875247 30th Dec 2020 6:08pm
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Retroanaconda



Member Since: 04 Jan 2012
Location: Scotland
Posts: 2545
Scotland 
Eight of the washers, they’re banjo bolts so one each side of the fitting for each injector. The hose looks perished so it might be the source of the leak also.

Don’t overtighten the leak-off banjo bolts - they snap very easily.
Post #875253 30th Dec 2020 6:14pm
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Rednaxela



Member Since: 23 Sep 2019
Location: UK
Posts: 41
United Kingdom 
If the braided/rubber pipes are perished the engine should start better (after sitting/overnight etc) with new ones.
Post #875282 30th Dec 2020 7:46pm
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Danny Fireblade



Member Since: 16 Mar 2018
Location: Hampshire
Posts: 300
United Kingdom 1998 Defender 110 300 Tdi HT Alpine White
I changed my braided pipes with some I got from Halfords for about £5. Takes about 3 minutes and the old ones were very brittle.
Post #875342 30th Dec 2020 10:56pm
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Jeebs



Member Since: 23 Oct 2015
Location: North West
Posts: 197
United Kingdom 1995 Defender 90 300 Tdi HT Barolo Black
Bits and bobs ordered, just at the mercy of Bearmach and their Christmas hours.

Can’t for love nor money find banjo bolts, sold out everywhere seemingly. I’ll just have to be careful. Case of nipping them up then a 1/4 turn?
Post #875347 30th Dec 2020 11:07pm
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2077
United Kingdom 1984 Defender 90 200 Tdi HT Pennine Grey
Run the bolts down to stop and then maybe 10°.
Mo The Land Rover 90 - Many are called, few are chosen.
Post #875364 31st Dec 2020 12:08am
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Oldowner



Member Since: 26 Dec 2018
Location: South west
Posts: 601
United Kingdom 2007 Defender 90 Puma 2.4 HT Aintree Green
In twenty plus years of 300tdi ownership The only leak off hose I have found that actually lasts is St Gobain Tygon hose. Expensive but worth it.

Every braided hose I have tried has lasted 6 -9 months before breaking down.
Post #875380 31st Dec 2020 6:53am
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Jeebs



Member Since: 23 Oct 2015
Location: North West
Posts: 197
United Kingdom 1995 Defender 90 300 Tdi HT Barolo Black
Fixed today. Only one snapped banjo on cyl 4.

Overtightened it going back on and snapped it. Luckily had the old ones so no issues.
Post #876943 7th Jan 2021 10:14pm
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driver



Member Since: 02 Aug 2009
Location: bude , cornwall
Posts: 204
United Kingdom 2007 Defender 90 Puma 2.4 HT Stornoway Grey
300tdi fuel return hose
Does anyone know the internal and external diameter of the flexible braided hose needed for the fuel return hose?
Post #1015907 21st Nov 2023 2:10pm
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