mmgemini Posted June 19, 2008 Share Posted June 19, 2008 At the end of last minth because the tax was due and I was going to make this battery box. I put a SORN on my Defender. A week later I noticed more oil than usual under the Defender. I had some roofing sheets delivered. Nowhere to put them except under the Defender. YEP...... The next day a slick of oil appeared on them. I've had a quick look. The oil seems to be coming from just above the oil filter. Oil pipes to rad ?? The filter is a Fram. I did change an O ring in one of those pipes some time ago. Do those O rings go as quick as this one. The dipstick shews correct level. Ideas please. mike Quote Link to comment Share on other sites More sharing options...
Godlykepower Posted June 19, 2008 Share Posted June 19, 2008 Mike, I once had a leak from around the base of the oil filter (around the seal), I dont know if this is the same area as you are experiencing a leak? It turned out that the filter was not fitted quite as tightly as usual, and had worked loose a little bit. Worth checking maybe? Other than this, I dont know enough to help. Martin Quote Link to comment Share on other sites More sharing options...
western Posted June 19, 2008 Share Posted June 19, 2008 filter seal to head leak or one of the oil cooler pipe connections is leaking or a crack in the waxstat adaptor [alloy top hat part] Quote Link to comment Share on other sites More sharing options...
Les Henson Posted June 19, 2008 Share Posted June 19, 2008 It's very common for the join between the rubber-to- steel section of the oil cooler pipes to start leaking. In that general area you have the filter and housing, oil pressure sender, and two oil cooler pipes. Clean it all, run the engine for a short while and then leave it. The leak should leave a fresh trace if you don't move your truck, Mike. You'll have to jack it up to get underneath - due to that valuable stomach of yours Les. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted June 19, 2008 Share Posted June 19, 2008 Also check the jubilees on the pipe going from the rocker cover to the block and the pipe returning oil to the lower half of the engine for the oil separater/ breather. Both of these leaked on mine and didn't half cause a mess. A little bit of oil goes a long way HTH Mo Quote Link to comment Share on other sites More sharing options...
Diff Posted June 20, 2008 Share Posted June 20, 2008 Oil pressure senders can often start leaking too. Usually at the crimped join rather than where it threads into the engine. Regards, Diff Quote Link to comment Share on other sites More sharing options...
mmgemini Posted June 20, 2008 Author Share Posted June 20, 2008 It's very common for the join between the rubber-to- steel section of the oil cooler pipes to start leaking. In that general area you have the filter and housing, oil pressure sender, and two oil cooler pipes. Clean it all, run the engine for a short while and then leave it. The leak should leave a fresh trace if you don't move your truck, Mike.You'll have to jack it up to get underneath - due to that valuable stomach of yours Les. Cheeky sod. I can stll get under the Defender at my age...... Thanks though. You've confirmed what I'm thinking. If it was filter. Surely it would only leak with the engine running.....This thing leaks with the engine off mike Quote Link to comment Share on other sites More sharing options...
Billy Whizz Posted June 22, 2008 Share Posted June 22, 2008 Also check the jubilees on the pipe going from the rocker cover to the block and the pipe returning oil to the lower half of the engine for the oil separater/ breather.Both of these leaked on mine and didn't half cause a mess. A little bit of oil goes a long way HTH Mo Check condition of pipe from block to rocker cover i have had a few split on the inner edge and MO IS RIGHT A LITTLE OIL GOES A LONG WAY Quote Link to comment Share on other sites More sharing options...
Guest otchie1 Posted June 22, 2008 Share Posted June 22, 2008 If it was filter. Surely it would only leak with the engine running.....This thing leaks with the engine off To my mind, yep. If you didn't run the engine between put the sheets under the Defender and then the slick appearing then the leak is likely to be at sump height - gasket or sump plug. Oil can get pumped to horrible places and then drain out with the engine off - rear main seal springs to mind with oil leaking out the bellhousing - and of course any oil left in the oil cooler/pipes/filter can leak out but when it's gone, it's gone. Still leaking? Top up the oil and see if you've got a new slick in the morning - you could even take the filter off just to discount it from the leak list. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted June 23, 2008 Author Share Posted June 23, 2008 Sorry lads but I think I know the difference between the oil dripping down the rear of the sump at the sump plug and dripping off the oil filter on the right side of the enging. Why shouldso much come from the breather pipe. There isn't any evidence of leaks in that direction. Just above the oil filter. What I do not understand is why it aparently only leaks with the enging switched off. I'm still thinking of the oil exchanger pipes being the problem. I might get the battery box finished this week. Then I can try to see what's happening. mike Quote Link to comment Share on other sites More sharing options...
rick Posted June 23, 2008 Share Posted June 23, 2008 <snip>I'm still thinking of the oil exchanger pipes being the problem. I might get the battery box finished this week. Then I can try to see what's happening. mike Mike, are these the original, Dunlop made crimped fittings ? If so, they are notorious for leaking. Most of us out here rip them out, cut off the original ends on the hard pipe and braze on standard type hydraulic hose ends and fit new hoses from Pirtek or Enzed. Problem solved. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted June 23, 2008 Author Share Posted June 23, 2008 Could be the problem Rick. Pirtec will not touch anything automotive in this area..... I'll have a dig about next week, hopefully....... 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.
Note: Your post will require moderator approval before it will be visible.