martinspragg Posted April 8, 2009 Share Posted April 8, 2009 I've noticed that my oil filler cap on the rocker box keeps popping off. It's not explosive but I will push it back in place and a few days later it's sitting up out of the hole in the rocker box. I took a casual look around the engine bay and I can see no crankcase breathers and I also checked that the filler cap could breath easily. I ran the engine with the cap off and there seems to be no excess smoky vapour coming out. So am I missing a breather tube or could it be blocked? Quote Link to comment Share on other sites More sharing options...
Les Henson Posted April 8, 2009 Share Posted April 8, 2009 The only breather is the pipe from the oil filler cap. If the ribbed seal on the cap is weak/damaged, then a worn engine may well pop it off. Les. Quote Link to comment Share on other sites More sharing options...
martinspragg Posted April 9, 2009 Author Share Posted April 9, 2009 Thanks Les, I doubt the engine is worn but the cap does seem a little loose on the rocker box. I'll look for a tighter one or try some homemade sealing solution. Quote Link to comment Share on other sites More sharing options...
western Posted April 9, 2009 Share Posted April 9, 2009 you can get a new ribbed seal seperatly. ERR736 Quote Link to comment Share on other sites More sharing options...
bogey Posted April 10, 2009 Share Posted April 10, 2009 Hi, I kept having this problem with the breather cap on my Turbo Diesel, there was negligeable pressure but the ribbed sealing ring just wasnt holding in place through age. As I was away on greenlaning trip, removed the rubber sealing ring, applied a couple of turns of insulation tape and then reapplied the rubber sealing ring. This solved the problem and although was only deemed as a temporary repair this was nearly a year ago and havnt bothered to buy new seal or breather. The cheapest landy repair you will probably ever have! Buy yourself an easter egg with the money you have saved!!!! Cheers Quote Link to comment Share on other sites More sharing options...
martinspragg Posted April 11, 2009 Author Share Posted April 11, 2009 My cap will stay on for weeks and then .....hey presto.....it's off. I thought I'd try duct tape but what the heck insulating tape is freely available. Thanks for the tip. Quote Link to comment Share on other sites More sharing options...
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