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Date: Fri, 08 Apr 2005 18:54:00 -0400
From: P K <>
Subject: Re: Too much oil in the block?

In article <>, "Dexter J" <> wrote: > Salutations: > > On Fri, 08 Apr 2005 17:28:30 -0000, Mac Townsend > <> wrote: > > > how can excess oil (filling w/5 qts instead of 4.2) ruin the engine? > > > > (I'm not challenging your statement, but wish to know the basis for it > > for my own education) > > > >> THIS I NOT OKAY!!! You have to removed the exessive oil right away, it > >> can ruin your engine. > > Actually - excess oil in the block can lead to all kinds of seal leak and > bearing surface problems (not that I'm the OP on the above, but ask me how > I know, as they say). > > Basically - the oil system on any engine is a careful balance between a > known viscosity at a known pressure at a given volume of oil. Overfilling > seriously stresses the rubber and bearing clearance calculations at > cruising RPM. > > It seems to me most likely that whoever changed the oil didn't completely > empty the block (say the car wasn't level) or just overfilled it (assuming > all other things being equal). If the block was run cold and carrying a > lot of oil in the galleries and head - you sometimes end up with a half > litre in the system that doesn't drop. I actually run the car to fan start > and pull the breather on changes now, just in case. > > The best thing to do it get a cheap turkey baster and a length of hose and > pull out what you need to get it right. Measure it, make note of the > mileage since the last change and see if it repeats. If it does, you > probably need to look at rings or venting. If it doesn't - be more careful > about oil changes down the road. > > It would be a long shot - but if your filter was somehow out of the > circuit or your pump had failed completely - you could end up about 1/2 > litre proud - but I've never heard of anyone managing to drive more than a > few miles in either situation yet. Stunningly tough blocks though they be. > > Happy motoring. > (OP) Yikes, I'll check these things out pronto. Thanks all! --Paul

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