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BuckBlu110



Member Since: 19 Apr 2014
Location: in the pub
Posts: 719
United Kingdom 1994 Defender 110 BMW M57 3.0 Diesel CSW Buckingham Blue
300 started tapping at rear of engine
Morning all, took the mrs out horsing the other night and on the way home the 110 started tapping, there doesn’t seem to be any loss of power and still pulls the horse box like a train. It’s a kind of tapping, psstting, for lack of a better word, type noise, of which seems to be coming from the rear of the engine, it can’t really be heard from the drivers side but is very audible from the passenger side and from inside the cabin. I’ve recorded a couple of videos but haven’t a clue how to get them up on here Embarassed . Any clues to what might be making the noise? And how to get the videos on here Laughing
I’m a bit hesitant to use it when it’s making strange noises and I’m getting badgered to take the mrs and the horses out again Rolling Eyes
Post #730291 21st Sep 2018 9:27am
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BuckBlu110



Member Since: 19 Apr 2014
Location: in the pub
Posts: 719
United Kingdom 1994 Defender 110 BMW M57 3.0 Diesel CSW Buckingham Blue
Should also mention that I can’t feel any blowing coming from either the head, rocker cover or exhaust gaskets, if that helps.
Post #730292 21st Sep 2018 9:33am
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324
United Kingdom 
Could be the vacuum pump. ISTR that made a tapping noise when it was failing on a 300tdi Discovery that I owned some years ago. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #730296 21st Sep 2018 9:37am
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trickster5000



Member Since: 12 Dec 2015
Location: East Yorkshire
Posts: 512
United Kingdom 1989 Defender 90 300 Tdi CSW Arles Blue
Mine started making chuffing noises and it turns out the head gasket was blowing out of the back of the head. If you put your hand down between the head and bulkhead you could clearly feel air blowing. Might be worth having another look as it sounds exactly like my symptoms Thumbs Up Matt.

'89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html
Post #730332 21st Sep 2018 2:23pm
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annette



Member Since: 24 Nov 2017
Location: Tilarán, Costa Rica
Posts: 68
Costa Rica 
wouldn't it be a blown manifold gasket.. he said PASSENGER side but I don't know whether he means left or right by that ( i know the British can be really weird about left or right, the call it OS and all sorts of things)

So if it is a RHD the passenger would be where normally the driver is. in that case it could be what happened to me, there was a stripped thread in the head

ended up putting in 10 helicoils and a new gasket, all fine!! Fixing Land Rovers in rural Guanacaste
Post #730337 21st Sep 2018 3:09pm
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BuckBlu110



Member Since: 19 Apr 2014
Location: in the pub
Posts: 719
United Kingdom 1994 Defender 110 BMW M57 3.0 Diesel CSW Buckingham Blue
Thanks for the suggestions folks, I’ve also been told it could be a injector seal, I’ll have a good look at it in the daylight in the morning.
Post #730417 21st Sep 2018 8:01pm
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Procta



Member Since: 03 Dec 2016
Location: Sunderland
Posts: 5239
United Kingdom 
Injector seals make a hissing noise, not sure if that the same with Mechanical pump diesels. Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!
Post #730493 22nd Sep 2018 1:13pm
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BuckBlu110



Member Since: 19 Apr 2014
Location: in the pub
Posts: 719
United Kingdom 1994 Defender 110 BMW M57 3.0 Diesel CSW Buckingham Blue
On further investigation, it seems like the head gasket is blowing Big Cry
I can see a 10mm gap in some dust that’s accumulated at the back of the block where the head sits and it’s blowing from there. Not bad going really, 250k miles and it’s first blown head gasket.
Post #730701 23rd Sep 2018 5:11pm
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trickster5000



Member Since: 12 Dec 2015
Location: East Yorkshire
Posts: 512
United Kingdom 1989 Defender 90 300 Tdi CSW Arles Blue
Glad you found it Thumbs Up

300tdi head gasket isn't too difficult especially if you have the Haynes manual. I would recommend replacing with the metal gasket rather than a composite one - be sure to replace like for like thickness if you're not getting the head skimmed.

Good luck! Thumbs Up Matt.

'89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html
Post #730703 23rd Sep 2018 5:17pm
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BuckBlu110



Member Since: 19 Apr 2014
Location: in the pub
Posts: 719
United Kingdom 1994 Defender 110 BMW M57 3.0 Diesel CSW Buckingham Blue
Cheers, hopefully it’ll be fairly straight forward, It’ll be the first time I’ve done a 300 head gasket.
Post #730704 23rd Sep 2018 5:36pm
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NickMc



Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1679
Northern Ireland 2006 Defender 90 Td5 HT Bonatti Grey
Not hard to do one. Just like any head cleaning is important and make sure you clean out the threads in the block and dry them. Little light oil on the threads.
Post #730790 24th Sep 2018 12:18am
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L110CDL



Member Since: 31 Oct 2015
Location: Devon
Posts: 10891
England 
Good you found it in the end Thumbs Up

Your gasket did a bit better than mine, my first gasket went at 232,000 and it was blowing at the back like yours Wink Clayton.

1996 Golf Blue 300Tdi 110 Pick up.
Keeper.
Post #730986 24th Sep 2018 8:45pm
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