Smuggler 0 Posted December 2, 2008 Report Share Posted December 2, 2008 Hi guys,Some of you may remember this happened to me a good 7-8 months ago now so it's no biggie, I just got thinking about it as I never decided to investigate the cause, instead I just replaced the engine a week later. I was driving, coolant temperature was fine, and I now seem to recall there were a few plumes of blue smoke coming out of the exhaust on deceleration, burning oil. This got increasingly worse over the space of a couple of minutes before the engine decided to seize. Now I didn't particularly notice the clouds of smoke at the time because I have a tinted glass on the tailgate, so combined with a blue huey smoke, it's quite hard to tell lol.The coolant reservoir tank was emptying to the bottom of the tank in a bout 30 - 40 miles, and had only started about 2 or 3 days before the incident. I knew the expansion cap was knackered, but just kept topping up as a temporary measure. In hindsight I now realise it's highly unlikely to have been losing that amount of water just due to the cap so more fool me for that.So i'm guessing I may have had a headgasket failure, but with no symptoms other than a coolant reservoir tank losing water, I checked everything else, radiator, oil level etc, so other than having a compression test left to do, and knowing about the expansion tank cap I had no reason to believe it was failing. Through all of this, the coolant level warning light never came on, and the coolant temperature was bang on, which I find strange.What i'm really getting at here is, I know a failed headgasket could cause oil to burn in the cylinder, hence exit out of the exhaust, but could any other type of failure at all cause the engine to burn the oil like that? If not, I guess I can just put my mind at rest and put it down to a headgasket.Else, could the oil pump have failed, and had been burning oil residue from the cylinder walls due to the increasingly higher temperature? Link to post Share on other sites
Phat VR6 3 Posted December 2, 2008 Report Share Posted December 2, 2008 smoke is most probably caused by valve stem seals/ guides.As to why it seized i have no idea but its normally lack of oil pressure/ overheating unless something hectic has happened Link to post Share on other sites
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