Cornish Rattler Posted November 20, 2016 Share Posted November 20, 2016 (edited) Hi guys Been stripping the Def 200tdi engine today and noticed when I removed the rockers with shaft there was no valve caps / cups between the valves and rockers, now when I stripped the Disco 200tdi engine a while back there was cups / caps between the valves and rockers. Is there a reason for this or is my Def engine missing these Edited November 20, 2016 by Cornish Rattler Quote Link to comment Share on other sites More sharing options...
Peaklander Posted November 20, 2016 Share Posted November 20, 2016 (edited) I'm pretty sure that they should be there to protect the rocker arm contact area. Certainly a quick internet search for 200TDI valve caps throws up loads of references and suggests they are fitted. They cost very little so I don't think there's anything to lose. Edited November 20, 2016 by Peaklander Typos Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted November 20, 2016 Share Posted November 20, 2016 Yes they should be there. Turner Engineering do a set from MWN (who make the 2.8 TGV) that are supposedly better than the Land Rover ones, which Turner claim are no longer made to the correct spec. Read into that what you will, but either way they are not expensive. Quote Link to comment Share on other sites More sharing options...
Cornish Rattler Posted November 20, 2016 Author Share Posted November 20, 2016 Cheers guys I will get some Quote Link to comment Share on other sites More sharing options...
Cornish Rattler Posted November 20, 2016 Author Share Posted November 20, 2016 Just ordered some from paddocks Quote Link to comment Share on other sites More sharing options...
ericobrave Posted November 20, 2016 Share Posted November 20, 2016 Yes they are certainly there on both my Defender 200 tdi's, I lost one and had to order more; part no. LJC100270 1 Quote Link to comment Share on other sites More sharing options...
Cornish Rattler Posted November 20, 2016 Author Share Posted November 20, 2016 I am assuming without them the engine would be very thirsty on juice as the valves wouldn't be opening and closing as they should, on fuel it was like running a V8 doing between 18-20mpg Quote Link to comment Share on other sites More sharing options...
Peaklander Posted November 20, 2016 Share Posted November 20, 2016 No that wouldn't be a problem because the tappet clearances would / could still be set correctly without them in place. Quote Link to comment Share on other sites More sharing options...
Les Henson Posted November 22, 2016 Share Posted November 22, 2016 Valve caps are used on 2.5 N/A, TD, and TDi engines. They are there to prevent damage to the top of the valve stem and rocker. Typically the valve stem will be hammered over, and there will also be a hole in the rocker pad. For the sake of about £8, you could be looking at new rockers and valves. If the tappet gaps are correct, then whoever set them was a complete idiot. Les Quote Link to comment Share on other sites More sharing options...
Cornish Rattler Posted November 22, 2016 Author Share Posted November 22, 2016 Yeah both the rockers and valve stems look ok so once the new cups come I will fit them and re-set them as required Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted November 29, 2016 Share Posted November 29, 2016 brough my caps today £16,40 from land rover dealer Quote Link to comment Share on other sites More sharing options...
Cornish Rattler Posted November 30, 2016 Author Share Posted November 30, 2016 Yeah got mine from Paddocks, just too cold to do anything in the garage atm till I can sort some heating out in the garage Quote Link to comment Share on other sites More sharing options...
Ex Member Posted November 30, 2016 Share Posted November 30, 2016 Do not, under any circumstances use the ones from Paddocks. Do not even use genuine ones. They are all too soft and fail very quickly. Many people have spent way too many hours finding out that the current genuine Land Rover branded caps are carp. Turner Engineering ones are fine and any hardened caps that you can buy from VW race shops. http://www.turnerengineering.co.uk/ljc100270-valve-cap-pkt-10-c2x20634592 Quote (NOT current Land Rover caps which are incorrect material specification) Quote Link to comment Share on other sites More sharing options...
Peaklander Posted November 30, 2016 Share Posted November 30, 2016 That's a surprise but Turners know best. Bit of a shame that they aren't offering them in multiples of eight rather than ten. I thought doing that was the preserve of the LR dealers. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted December 1, 2016 Share Posted December 1, 2016 Trust me. It is true. Had a friend spend a year after a rebuild trying to find out why the caps were wearing out quickly. After the aftermarket ones wore out, he changed to genuine and they wore out. He thought something was completely wrong with the rebuild as genuine ones could not be bad.... Finally got some proper hardened ones (very common and easy to source as they are the same size as aircooled VWs) and no more problem. Just look for 8mm valve caps. $11 in the States. http://www.ebay.co.uk/itm/VW-PRO-COMP-HARDENED-VALVE-STEM-LASH-CAPS-FOR-8mm-VALVES-SET-OF-8-EMPI-/401205610253?hash=item5d69b7c70d:g:yT8AAOSwFqJWlCtw I'm sure there must be VW race shops in the UK.... Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted December 1, 2016 Share Posted December 1, 2016 (edited) On 11/30/2016 at 4:13 PM, Red90 said: Do not, under any circumstances use the ones from Paddocks. Do not even use genuine ones. They are all too soft and fail very quickly. Many people have spent way too many hours finding out that the current genuine Land Rover branded caps are carp. Turner Engineering ones are fine and any hardened caps that you can buy from VW race shops. http://www.turnerengineering.co.uk/ljc100270-valve-cap-pkt-10-c2x20634592 don't use land rover ones? what do we use? should i go back to land rover ask for my money back? ralph any ideas??? Edited December 1, 2016 by roverv8 Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted December 1, 2016 Share Posted December 1, 2016 Err, solution is given above, buy from turner, or the VW part, also mentioned above. Quote Link to comment Share on other sites More sharing options...
Cornish Rattler Posted December 2, 2016 Author Share Posted December 2, 2016 So how come the original Land Rover ones don't wear out Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted December 2, 2016 Share Posted December 2, 2016 Different batch, cost saving over time, made by different, chinese*, supplier, no longer care about 25+year old engines. *maybe Quote Link to comment Share on other sites More sharing options...
Cornish Rattler Posted December 2, 2016 Author Share Posted December 2, 2016 Are ok Quote Link to comment Share on other sites More sharing options...
nickwilliams Posted May 3, 2021 Share Posted May 3, 2021 Does the advice in this thread remain valid? Took the rocker shaft off the cylinder head today (see separate 300 TDi head gasket thread) and to say that the valve caps were knackered is a bit of an understatement: These came from Paddocks when I rebuilt the engine and replaced the head 18 months or so ago - the head came from Turners with valves, valve springs, spring caps, cotters, stem seals and spring seals but not the valve caps. Has anyone got a part number and UK source for the VW ones mentioned? 1 Quote Link to comment Share on other sites More sharing options...
western Posted May 3, 2021 Share Posted May 3, 2021 I got mine from Turners, not had any problems Quote Link to comment Share on other sites More sharing options...
nickwilliams Posted May 5, 2021 Share Posted May 5, 2021 So this is what was delivered from Turner's today: Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted May 5, 2021 Share Posted May 5, 2021 Spanish made? Quote Link to comment Share on other sites More sharing options...
Peaklander Posted May 5, 2021 Share Posted May 5, 2021 São Paulo, Brazil Quote Link to comment Share on other sites More sharing options...
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