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BaronDefenders

Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 806

Air in Fuel After Filter Change

I took the opportunity of all this spare time to service my Td5 last week. As part of that I changed the fuel filter and ran the obligatory fuel bleed. I’ve only driven it twice since and each time the pump has made the telltale gurgle of there being a bit of air. I started it a short while ago, having not moved it for a few days, and it was not happy when it started. It was really lumpy so I shut it off. Started it up again straight away and it was fine.

Is there just a tiny bit of air left that’ll work it’s way out or has something failed such as the filter housing? There are no obvious signs of any diesel leaks.

Cheers! Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders

2nd Apr 2020 12:59pm

rallysteve

Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2199

2002 Defender 110 Td5 DCPU Keswick Green

if you didnt pre-fill the new filter with diesel it will take a little while to bleed all the air out of the filter.

I never bother pre-filling the new one to be honest. I normally find two bleed cycles and about an hour of driving and any sign of air will have gone.

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2nd Apr 2020 2:41pm

BaronDefenders

Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 806

No I didn't pre-fill the filter. I was more concerned with the lake of diesel I'd created on the drive

I only did one purge cycle as well so there probably was a fair bit of air left in the system.

I'll keep an eye on it but hopefully it's all good now that I've just driven it into Ciren and back. Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders

2nd Apr 2020 2:50pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5740

1999 Defender 110 Td5 SW Caledonian Blue

I don't pre-fill the filter either. Just turn on the ignition make sure the pump whirls away and then for a brew and come back when its stopped,. Start up and done. No issues. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

2nd Apr 2020 4:12pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5417

2006 Defender 110 Td5 USW Zermatt Silver

What make of fuel filter did you fit?

2nd Apr 2020 8:32pm

BaronDefenders

Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 806

It’s a Mahle filter. Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders

2nd Apr 2020 8:33pm

apachecow

Member Since: 12 Apr 2016
Location: Yorkshire Dales
Posts: 59

You did check that the central washer hadn't become stuck to the housing? It's possible to accidentally double them up and then you don't get a great seal.

3rd Apr 2020 10:24pm

BaronDefenders

Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 806

Hmmm I didn’t check actually. I don’t think it did though. I might still have the old filter in the bin so I’ll look at it tomorrow. Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders

3rd Apr 2020 10:33pm

BaronDefenders

Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 806

Just driven to the village shop and all is now fine. Must have just been air leftover in the system. Lesson learned, purge it twice.

Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders

7th Apr 2020 11:59am

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