Dicky Posted July 8, 2014 Share Posted July 8, 2014 Had my spark plugs changed the other day and the garage told me that on one of the tubes into which the spark plug fits had oil in it. The tube, which goes into the right hand cylinder head apparently has O rings fitted (they weren't sure exactly how it goes together) and they suspected oil was passing one of these and filling up the spark plug tube. Has anyone got experience of this problem or has stripped the engine down to a level where access to these O rings is possible and can tell me if it's much of a job ie can the average Joe tackle it. I've attempted to provide a short cut below to the manual drawing showing the three tubes coming out of the head (not to good with the old computer malarkey so may well be a drop off) http://www.nicoclub.com/FSM/350Z/coupe/2004_Coupe+Roadster/EM.pdf#page79 Quote Link to comment Share on other sites More sharing options...
Dicky Posted July 8, 2014 Author Share Posted July 8, 2014 Oooops the short cut goes to the full section. It's page E65 Quote Link to comment Share on other sites More sharing options...
jumping350 Posted July 8, 2014 Share Posted July 8, 2014 rocker cover gasket I believe you will have to buy whole new rocker covers though, someone will be along shortly to confirm im sure Quote Link to comment Share on other sites More sharing options...
Arran Posted July 8, 2014 Share Posted July 8, 2014 Yep new covers time and replace the gaskets to, cant buy the seals separately. Quote Link to comment Share on other sites More sharing options...
jumping350 Posted July 8, 2014 Share Posted July 8, 2014 thats right its rocker cover seals isnt it Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted July 8, 2014 Share Posted July 8, 2014 You have an oil seal failure, however the seals are integrated with the cam cover. Solution is to replace the cam cover or live with it as it should not develop into an issue. Alex. 1 Quote Link to comment Share on other sites More sharing options...
Ewen@Clark Motorsport Posted July 8, 2014 Share Posted July 8, 2014 Dicky if you do want to go for new covers we have them in stock at a non OEM price Quote Link to comment Share on other sites More sharing options...
6705russell Posted July 8, 2014 Share Posted July 8, 2014 You can buy the seals separately, I got mine from Nissan Stafford the other day. Quote Link to comment Share on other sites More sharing options...
Dicky Posted July 8, 2014 Author Share Posted July 8, 2014 Thanks lads this is a great forum for help and advice. Apologies for appearing a bit mentally challenged by what I'm about to say next but want to be sure I've got it right because the garage planted a slightly different picture in my mind. The problem is due to O rings which form part of the rocker (cam) cover leaking and I will need to either fit a new rocker cover or I can buy these O rings separately and replace them in the rocker cover. Quote Link to comment Share on other sites More sharing options...
Dicky Posted July 8, 2014 Author Share Posted July 8, 2014 PS Is there a gasket kit available for this job ? Quote Link to comment Share on other sites More sharing options...
Ewen@Clark Motorsport Posted July 8, 2014 Share Posted July 8, 2014 The main gasket seals are available separately but if its the spark plug O rings these are not and unfortunately you have to buy the whole cover. Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted July 8, 2014 Share Posted July 8, 2014 (edited) There are no O rings, only oil seals which are part of the cover, however you will have to replace the gaskets if you remove the cover as they form a seal between the cover and the head. You have a leaking oil seal in this instance. Alex. Edited July 8, 2014 by ZMANALEX Quote Link to comment Share on other sites More sharing options...
Ewen@Clark Motorsport Posted July 8, 2014 Share Posted July 8, 2014 We have new seals for £11.99 each and new covers are £195 each Quote Link to comment Share on other sites More sharing options...
Dicky Posted July 8, 2014 Author Share Posted July 8, 2014 We have new seals for £11.99 each and new covers are £195 each Sorry just Pm'ed you before receiving the replys Quote Link to comment Share on other sites More sharing options...
Ewen@Clark Motorsport Posted July 8, 2014 Share Posted July 8, 2014 No worries Dicky sent you a reply Quote Link to comment Share on other sites More sharing options...
cs2000 Posted July 8, 2014 Share Posted July 8, 2014 (edited) A problem I have too. I am aware that Clark sell the parts, but ive found a Nissan dealer on eBay selling the full set for 227.69 http://www.ebay.co.u...984.m1423.l2649 Obviously you will have to pay import tax so I've no idea which works out cheaper, just showing you an option. @Clark Motorsport - It is reassuring to know that it wont develop into any worse problems however so thanks for that! Just wish Nissan made the o-ring seal things independently replaceble! I just keep checking and topping up the oil Edited July 8, 2014 by cs2000 Quote Link to comment Share on other sites More sharing options...
Tinyflier Posted July 8, 2014 Share Posted July 8, 2014 Abbey spotted that I had two leaking spark plug tubes (one in each cam cover) last year and I was readying myself to have to replace both covers. They in fact fitted two repaired covers (after I had had them carbon dipped - see my build thread - shameless show off that I am!) and took my old ones back in to stock to carry out the same repair. I don't know what they did but I assume it was a permanent fix and all I had to pay for was the labour to remove, rectify and refit. David Quote Link to comment Share on other sites More sharing options...
88sam88 Posted July 8, 2014 Share Posted July 8, 2014 I have the same problem (oil in around the spark plugs).. Can someone correct me that it's okay to leave this to fix at a later stage (won't cause problems if oil is topped up?) Thanks Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.