Oil and Filter Change
in [Technical]
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From: Daniel W. Rouse Jr. on 11 Oct 2007 07:43 "E Meyer" <epmeyer50(a)msn.com> wrote in message news:C3336DFA.294D9%epmeyer50(a)msn.com... > > > > On 10/11/07 5:34 AM, in article > HaGdnThQC9CwYZDanZ2dnUVZ_s-pnZ2d(a)nethere.com, "Daniel W. Rouse Jr." > <dwrousejr(a)nethere.comNOSPAM> wrote: > > > "Built_Well" <built_well_toyota(a)hotmail.com> wrote in message > > news:470d6c85$0$68465$892e0abb(a)auth.newsreader.octanews.com... > >> > >> I'm going to follow BadGolferMan's lead, and start > >> changing my own oil. > >> > > > > [snip...] > > > >> Use the correct size wrench to loosen (turn counter-clockwise) the oil > >> drain plug. Use a shop rag to protect your hand from the hot oil. Keep > >> a steady inward pressure on the plug to avoid the hot oil from running > >> down your arm. If oil seems too hot to touch, allow the oil to cool. > >> > > From which reference point is this counter-clockwise direction referenced? > > Facing the front of the car, or facing the rear of the car (when underneath > > the car)? > > > > It may seem like an obvious question, but no oil change manual or > > instruction set I have seen ever actually qualifies this. It seems > > important, though, because turning counter-clockwise from the wrong > > reference point would actually be turning more clockwise. > > > > [snip...] > > > > > > That's just silly. The reference point is facing the head of the bolt. > I don't think it is silly, here's why. If I put the car on ramps and then go under the car, I can have my legs pointed facing the front or the rear of the vehicle. Looking up and applying a socket to the bolt... it's going to make a difference from which reference point is the counter-clockwise direction. Similarly, if I could get the car high enough on a hydraulic lift so that I could stand under it, I could look up at the head of the bolt facing the front or the rear of the vehicle. That's why I asked. The above response failed to sufficiently answer the question. So, is the reference point facing the head of the bolt and facing the front of the vehicle? Or facing head of the bolt and facing the rear of the vehicle?
From: Jeff on 11 Oct 2007 07:44 Daniel W. Rouse Jr. wrote: > "Built_Well" <built_well_toyota(a)hotmail.com> wrote in message > news:470d6c85$0$68465$892e0abb(a)auth.newsreader.octanews.com... >> I'm going to follow BadGolferMan's lead, and start >> changing my own oil. >> > > [snip...] > >> Use the correct size wrench to loosen (turn counter-clockwise) the oil >> drain plug. Use a shop rag to protect your hand from the hot oil. Keep >> a steady inward pressure on the plug to avoid the hot oil from running >> down your arm. If oil seems too hot to touch, allow the oil to cool. >> > From which reference point is this counter-clockwise direction referenced? > Facing the front of the car, or facing the rear of the car (when underneath > the car)? It is from the central axis of the nut or bolt when look at the bolt. > It may seem like an obvious question, but no oil change manual or > instruction set I have seen ever actually qualifies this. It seems > important, though, because turning counter-clockwise from the wrong > reference point would actually be turning more clockwise. All bolts and nuts are either right-handed or left-handed. Right-handed bolts are the common ones. After 10 years of taking apart engines during college and high school, I can assure you that there are very few left-handed ones in cars. I think I ran into them a few times, but very rarely. The only time I can remember threads being left-handed has to do with certain gases, so that you can't connect things wrong and take things apart accidentally. Jeff > [snip...] > >
From: hls on 11 Oct 2007 07:52 "Daniel W. Rouse Jr." <dwrousejr(a)nethere.comNOSPAM> wrote in message > So, is the reference point facing the head of the bolt and facing the front > of the vehicle? Or facing head of the bolt and facing the rear of the > vehicle? Clockwise is referenced from the presented face (of the clock). Same for bolts, oil filters, and the like. Doesnt matter whether you are lying down, standing, or walking a tightrope.
From: Tegger on 11 Oct 2007 08:11 "Daniel W. Rouse Jr." <dwrousejr(a)nethere.comNOSPAM> wrote in news:6_mdnforhdDPkZPanZ2dnUVZ_v2unZ2d(a)nethere.com: > > So, is the reference point facing the head of the bolt and facing the > front of the vehicle? Or facing head of the bolt and facing the rear > of the vehicle? > > The reference point is that of an imaginary observer who is always able to face the bolt head, with the threaded portion of the bolt pointing away from him. This observer is supposed to be able to always face the bolt head square-on no matter which direction the bolt is actually pointing, or what parts happen to be in the way. If the top of the bolt turns to the right (clockwise) to tighten for such an observer, the bolt is "right-hand thread". If the bolt turns the other way to tighten (counterclockwise), it's "left-hand thread". 99% of the bolts you'll encounter in normal servicing will be "right-hand thread". That left over 1% can be a killer! -- Tegger
From: Smitty Two on 11 Oct 2007 09:17
In article <6_mdnforhdDPkZPanZ2dnUVZ_v2unZ2d(a)nethere.com>, "Daniel W. Rouse Jr." <dwrousejr(a)nethere.comNOSPAM> wrote: > "E Meyer" <epmeyer50(a)msn.com> wrote in message > news:C3336DFA.294D9%epmeyer50(a)msn.com... > > > > > > > > On 10/11/07 5:34 AM, in article > > HaGdnThQC9CwYZDanZ2dnUVZ_s-pnZ2d(a)nethere.com, "Daniel W. Rouse Jr." > > <dwrousejr(a)nethere.comNOSPAM> wrote: > > > > > "Built_Well" <built_well_toyota(a)hotmail.com> wrote in message > > > news:470d6c85$0$68465$892e0abb(a)auth.newsreader.octanews.com... > > >> > > >> I'm going to follow BadGolferMan's lead, and start > > >> changing my own oil. > > >> > > > > > > [snip...] > > > > > >> Use the correct size wrench to loosen (turn counter-clockwise) the oil > > >> drain plug. Use a shop rag to protect your hand from the hot oil. Keep > > >> a steady inward pressure on the plug to avoid the hot oil from running > > >> down your arm. If oil seems too hot to touch, allow the oil to cool. > > >> > > > From which reference point is this counter-clockwise direction > referenced? > > > Facing the front of the car, or facing the rear of the car (when > underneath > > > the car)? > > > > > > It may seem like an obvious question, but no oil change manual or > > > instruction set I have seen ever actually qualifies this. It seems > > > important, though, because turning counter-clockwise from the wrong > > > reference point would actually be turning more clockwise. > > > > > > [snip...] > > > > > > > > > > That's just silly. The reference point is facing the head of the bolt. > > > > I don't think it is silly, here's why. > > If I put the car on ramps and then go under the car, I can have my legs > pointed facing the front or the rear of the vehicle. Looking up and applying > a socket to the bolt... it's going to make a difference from which reference > point is the counter-clockwise direction. > > Similarly, if I could get the car high enough on a hydraulic lift so that I > could stand under it, I could look up at the head of the bolt facing the > front or the rear of the vehicle. > > That's why I asked. The above response failed to sufficiently answer the > question. > > So, is the reference point facing the head of the bolt and facing the front > of the vehicle? Or facing head of the bolt and facing the rear of the > vehicle? Are you trolling? If you don't know the difference between clockwise and counterclockwise, take your car to jiffy lube. You can lie under the car with your legs sticking out in any direction you want, clockwise is still the same direction. Seriously. Try it. |