 | Home > Puma (Tdci) > Land Rover defender 2.4 Tdci tappet type noise |
 
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| Bourgui Member Since: 15 Oct 2018 Location: Muscat Posts: 23   
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Hello,
I had the same problem until yesterday, solved it with a VCV reset and pilot learn. Takes about 5 minutes in total, but you need to have the engine warm enough (I did it after driving for about 20mins) All done with the magnificent BAS RRC! It can also be done with some of the diagnostic tools but not sure which ones. |
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14th Feb 2019 4:13pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298  
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/\ is probably the answer. but I do wonder if there's a chance that the egr isn't shutting fully?
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14th Feb 2019 4:32pm |
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| Defender Fun Member Since: 03 Feb 2019 Location: South East Posts: 64  
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Hi
Thank you for both your reply’s, I have done an injector and Pump learn, the injectors was successful however the pump not I did try it again but no luck. But will give it another go. Please note I have a Hawkeye total (Bearmach one). It has also had a new Vcv which when fitted it did pump relearn. (Fitted early December) As for the egr, the car has been remapped and the egr has been turned off so I don’t believe this could still cause a problem? Kind regards |
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14th Feb 2019 10:05pm |
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| Bluericky Member Since: 26 Jun 2014 Location: Cornwall Posts: 647 
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Have you checked your injector bolts are torqued down correctly?
The injectors can rattle terribly and won’t necessarily leak either. Although I think it’s the blow by that makes the tappety tap https://www.instagram.com/hustynminepark/ |
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15th Feb 2019 6:37am |
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| Defender Fun Member Since: 03 Feb 2019 Location: South East Posts: 64
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Hi
Thank you for your message, yes they we’re torqued to the correct 7nm plus the 180 degree turn as in the manual. I’m sure they are as tight as the can be (without risking braking them). |
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15th Feb 2019 7:41am |
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| kaney Member Since: 01 Oct 2018 Location: Bolton Posts: 232 
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Mine also makes this noise most noticable going up hill on friday its having the rocker cover gasket done but at the same time changing the fuel regulator i don't know if this has anything to do with it
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15th Feb 2019 7:42am |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298
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I know this is going to sound mad but it was my problem. I was convinced for ages there was a problem with my engine and like yourself it was when it would under load. I turned out to be the transfer box. Real simple one. Try engaging diff lock / dis-engage and use hi / low and see if that has any bearing what so ever on what I would have previously called injector knock. I know it sounds highly unlikely but no harm in trying huh? |
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15th Feb 2019 9:21am |
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| Bluericky Member Since: 26 Jun 2014 Location: Cornwall Posts: 647
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I had problems re learning the pump and it was because of the ambient air temperature, Pete at BAS told me to do it in a heated garage (not a luxury I have!) . Instead i waited until the afternoon , took it for a warm up drive and that time it did it. Temp was probably around 11-12c rather than 4-5c ! https://www.instagram.com/hustynminepark/ |
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15th Feb 2019 9:25am |
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| Defender Fun Member Since: 03 Feb 2019 Location: South East Posts: 64
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Hi
Yes that could suggest the problem, as even though the car was warm, the ambient temp was about 4 degrees if not less. Will give it another go. Luckily I do have a heated double garage but unfortunately both my series projects are taking up the room  .
Will give it another try after a drive to get it up to temperature. |
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15th Feb 2019 9:59am |
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| Defender Fun Member Since: 03 Feb 2019 Location: South East Posts: 64
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Hi This may relate to my problem some way, as about a week before the injectors become loose and these problems arised I had my front and rear output shaft seals changed on the transfer box. As I barely drove it after having the seals changed until the injectors became loose I’m unsure if it was making a noise. But could changing the seals have an affect on the transfer box? In the context that I’m experiencing? I will give it a go between the different stages of difflock and low range to see if I can check. But did it result in the transfer box needing to be replaced for you? Kind regards |
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15th Feb 2019 10:04am |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298
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no. for me the linkage assembly needed adjusting.
basically the diff lock was not getting full movement from locked to unlocked ie the lever was not capable of moving the rotary thing on the transfer box all the way towards the unlocked position. To be completely sure crawl underneath. disconnect the linkage and manually move the lever fully into the unlocked position. 
hopefully an easy thing to eliminate. like I say for a long time it sounded to me like injector knock. only happened when the engine was under load. |
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15th Feb 2019 2:15pm |
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