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I plan to install a sump that will add 1.5 liters of oil. Will my existing dipstick provide me the correct information regarding the amount of oil measured or I would need to find a longer dipstick to do so?
Thanks for your help.
If you're adding 1.5 litres to the existing amount of oil, then it shouldn't matter, since you'll just fill the sump and then the case will fill to the normal fill line.
However, if its a 'dry sump' that you're putting in with the intention of draining the case of oil, then your dipstick will of course be inaccurate.
Oh, and by the way, don't be lulled into a false sense of security thinking you can let the level drop more than normal because you have a deeper sump... keep the levels normal. Hey Biggie, does oil level affect the tappet faces and cam lobe lubrication, since they are splash oiled? Or does the oil splashed on them come from mostly from the rod journals?
Paul
Altema: Isn't that the point of dry sumps though? (I honestly don't know? If so, why?)
Or do they provide some alternative to oiling the lifter faces if there isn't enough oil coming off the crank/con rods? Perhaps dry sumps require the use of lifters with oil holes?
Altema: Isn't that the point of dry sumps though? (I honestly don't know? If so, why?)
Or do they provide some alternative to oiling the lifter faces if there isn't enough oil coming off the crank/con rods? Perhaps dry sumps require the use of lifters with oil holes?
Dry sumps do reduce windage, but I was referring to the oil that is supplied to the con rods under pressure, and when it is forced out past the bearing surfaces, some of it gets splashed around the case before dropping to the sump. That would happen with a wet or dry sump. I don't think the oil level in our engines is high enough for the con rods to dip into the sump oil anyway.
Paul
The cylinder walls are oiled by the splashing of the rods in the sump...
The cylinder walls are oiled by the splashing of the rods in the sump...
Really? Learn something new every day. I certainly was not expecting that. Seems like cylinders 3 and 4 would get better oiling than 1 and 2...
Paul
I must agree with Altema - the cylinders are oiled by thrown oil off the big rod ends, since the oil pumped through the crank to the rods exits past the side-clearance of the rods. That's enough to lube the cylinders on a flat 4. The crank lobes never reach the oil in the sump, because the crank is directly over the camshaft, and even the camshaft isn't submerged in oil. (If it were, lubrication of the cam lobes would never be a problem and cam wear would be much lower.)
Take a case right side, put in the dipstick, and compare the level to the camshaft bore.
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