Big.Mike Posted November 30, 2012 Share Posted November 30, 2012 My 300tdi engine is making a weird ticking noise that increases frequency in time with the engine revs... Does anyone have an idea what it might be? Cheers, Mike Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted November 30, 2012 Share Posted November 30, 2012 Either your lift pump or vacuum pump. Could be a clogged fuel filter causing the lift pump to 'tick'. Any performance issues? Quote Link to comment Share on other sites More sharing options...
Big.Mike Posted November 30, 2012 Author Share Posted November 30, 2012 Either your lift pump or vacuum pump. Could be a clogged fuel filter causing the lift pump to 'tick'. Any performance issues? No real performance issues, still a fuel filter is worth a change... I'll have to have a look at the vacuum pump. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted November 30, 2012 Share Posted November 30, 2012 Gasket leaks can cause ticking too. Head gasket, inlet and exhaust manifold gasket etc. Have a feel around for any blows. Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted November 30, 2012 Share Posted November 30, 2012 Broken valve cap is another thought.. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted December 1, 2012 Share Posted December 1, 2012 Broken valve cap is another thought.. I'll second that. Quote Link to comment Share on other sites More sharing options...
Big.Mike Posted December 1, 2012 Author Share Posted December 1, 2012 If I take off the rocker cover, what's the likely hood of the gasket being knackered? Ta, Mike Quote Link to comment Share on other sites More sharing options...
Off Road Toad Posted December 1, 2012 Share Posted December 1, 2012 It should be ok, it's rubber. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted December 1, 2012 Share Posted December 1, 2012 According to Land Rover, rocker gaskets can be used up to five times. I change mine every time I take the rocker cover off. Quote Link to comment Share on other sites More sharing options...
Reiny Posted December 1, 2012 Share Posted December 1, 2012 have you tried to check whether the noise goes away when you depress the clutch? Quote Link to comment Share on other sites More sharing options...
mmgemini Posted December 1, 2012 Share Posted December 1, 2012 Have you a long screwdriver ? Blade on vacc pump and ear to handle. You can check allsorts, not Bassets, of noises with that. Quote Link to comment Share on other sites More sharing options...
oneandtwo Posted December 2, 2012 Share Posted December 2, 2012 Almost certainly a failed valve cap. They wear a hole through them like a polo mint, causing the valve clearance to skyrocket. I would change all eight of them and reset the clearances. If there is no remains of the valve cap on the valve stem then have a good look around the rocker gear as once they are worn through they can jump off and sit in the bottom of the head. Also check the rocker faces for damage from directly contacting the valve - you can usually get away with it but I have had to change rockers before due to prolonged running with damaged valve caps. I once serviced a 300tdi and found the remains of five valve caps worn through in the cylinder head and very badly damaged rocker gear, no idea how long it had been like that but it made a terrible racket. Quote Link to comment Share on other sites More sharing options...
Big.Mike Posted December 2, 2012 Author Share Posted December 2, 2012 Blooming Nora, I'll have to have a look now... will halfords have valve caps? Is it easy to adjust the spacings? Is there a tech archive? Cheers, Mike Quote Link to comment Share on other sites More sharing options...
oneandtwo Posted December 2, 2012 Share Posted December 2, 2012 Take the rocker cover off, turn the engine over by hand and feel the clearances. It will be obvious if one or more is damaged as the clearance will be way out on the rocker. Worth resetting all the valve clearances anyway (0.20mm in and ex) Halfords won't do 300tdi valve caps! Quote Link to comment Share on other sites More sharing options...
mmgemini Posted December 2, 2012 Share Posted December 2, 2012 Dealership Mike. IIRC there are two types but I don't know why. I have eight secondhand ones lying on the tray next to my gearlever. One rusty flattened one on the RH wing top. Quote Link to comment Share on other sites More sharing options...
western Posted December 2, 2012 Share Posted December 2, 2012 300tdi valve stem cap http://www.lrseries.com/shop/product/listing/7538/97/7/LJC100270-VALVE-STEM-CAP.html supersedes the previous part number item 14 in http://lrcat.com/#31/4/53201 Quote Link to comment Share on other sites More sharing options...
dave1607 Posted December 2, 2012 Share Posted December 2, 2012 I had an annoying ticking noise from my engine, ended up just setting the valve clearances and that quietened it right down. Definitely worth checking first as it's a fairly quick and easy job to do. Quote Link to comment Share on other sites More sharing options...
Big.Mike Posted December 3, 2012 Author Share Posted December 3, 2012 RIght had a good look & listen today, nothing obvious. I'm suspicious of the valve caps so I'm going to order the bits I need and replace them at the weekend. However, I was trying to listen to the air pump, when the air filter supports came off in my hands, so I've to cable tie it in place, I might have found my ticking... the rubber mounts are knackered... Longer term fix, a bit of Sugru to replace the rubber mounts (my favorite fix stuff at the moment)... Quote Link to comment Share on other sites More sharing options...
mmgemini Posted December 3, 2012 Share Posted December 3, 2012 Those rubber mounts could be the problem. Now Land Rover sell tham. They are 6mm. BUT If you can get Mini, the [roper Mini, exhaust bobbles. They are cheaper but they have a 1/4" UNF or 5/16" UNF thread. The mounting holes will need drilling out. A cheaper and better part IMO. Quote Link to comment Share on other sites More sharing options...
Big.Mike Posted December 3, 2012 Author Share Posted December 3, 2012 What like this? http://www.top-end.com/hikashop-menu-for-brands-listing/product/365-m6-thread-saab-renault-universal-exhaust-mounting-bobbin.html Quote Link to comment Share on other sites More sharing options...
oneandtwo Posted December 4, 2012 Share Posted December 4, 2012 Those rubber mounts could be the problem. Now Land Rover sell tham. They are 6mm. BUT If you can get Mini, the [roper Mini, exhaust bobbles. They are cheaper but they have a 1/4" UNF or 5/16" UNF thread. The mounting holes will need drilling out. A cheaper and better part IMO. A better choice would be Renault / Saab exhaust mounts as they are a direct replacement for the 300tdi mounts and far longer lasting. I get them £4.50 plus VAT for ten and change them as a matter of course on any 300tdi I work on. http://www.ebay.co.uk/itm/Universal-exhaust-mounting-bobbin-6mm-Renault-Saab-/321010606962?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item4abdb92372 Quote Link to comment Share on other sites More sharing options...
Big.Mike Posted December 4, 2012 Author Share Posted December 4, 2012 Well she's not ticking any more, what ever it was.blew a hole in in the sump... Waiting for the RAC man to come and take Daisy to Gumtree 4x4 Quote Link to comment Share on other sites More sharing options...
Big.Mike Posted December 4, 2012 Author Share Posted December 4, 2012 Just a bit of a correction... It was the front oil seal and bearing that gave up the ghost. The suspicion is that the crank shaft is now knackered... That'll be a new engine then. Doh! Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted December 5, 2012 Share Posted December 5, 2012 Front main bearing? Unusual on this engine. I have never had to even have a crank ground - just polished. I have known a broken con-rod though. Quote Link to comment Share on other sites More sharing options...
Big.Mike Posted December 5, 2012 Author Share Posted December 5, 2012 Flaming typical that I find the only unreliable 300 tdi engine in the world... Quote Link to comment Share on other sites More sharing options...
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