Intermittent Oil Burning Bamp; S engine

My lawnmower with a B&S 18.5 hp single cylinder Intek engine burns oil intermittently. What confuses me is that it will run without burning oil for 30-60 minutes and then suddenly start spewing THICK smoke. It will take the oil from full to add (8 ounces) in about 10 minutes. I don't think th

Waste Plumbing Not Vertical

The 3" plastic waste plumbing installed in my concrete floor is not vertical. It is about 10° off. This causes a problem when trying to install the toilets. Any suggestions as to how to straighten it up. There is about 3" clearance between the the plastic pipe and the concrete.

Lesson I

Electric Tester

How does a tester work? I have done checking phase and myself as ground but Ii never understand why I'm not getting shocked.The circuit is closed now, is it the resistance in series or vacuum in bulb or a positive charge is developed from ground? Please help I'm a graduate EE.

Megger

Today we did substation maintenance. We checked insulation level of 15MVA TFR, ACB etc. (200M ohms,5 M ohms). Can you tell me what is 1000V meggar doing while checking. Is there a current flowing through insulation or ground to ground?

Flexible Pavement

Hi,

Considering we are working Asphalt Concrete Paving. Please give me an idea what is the meaning of 'MC' (prime coat) and 'RC" (tack coat)? Thanks in advance.

aCres

Members Missing

I have been following your website for some time. I notice several regular members are not posting information anymore. People with name "Sparkstation", "Babybear", "Standarded", "Blink", and several more.

Do you people know what has happened to these members? I see they usually give good i

One Thing About Bearing

Currently I am working with a local bearing manufacturing company and we hire a foreign expert to help us with the production management. I do a lot of things for this gentleman and learn a lot but I have problems with the gauging devices for bearing since Ii am a new entrant into bearing

Challenge to Stop the BP Gulf Oil Spill

To all CR4 community members this is a challenge for everyone associated with or concerned about the BP Gulf oil debacle.

BP-Trans-Ocean and Government agencies are failing to listen and we need to push them into doing the right thing.

Below is what has been posted on the White Hou

Solar Water Heating Idea

Hi all, I am working on an idea to heat water by making it pass through transparent tubes that are partly filled with small black beads. The beads are caught inside the tubes between two sieves, so they won't escape. The idea is that the beads absorb the solar radiation and transfer the heat to t

J Factor

Dear Sir,

In 1 1/4 Cr-1/2 Mo material J factor is not required, While in case of 2 1/4 Cr-1Mo material J factor is required to calculate. Can you explain me why J factor is required? What is impact on material with consideration of J factor? Why J Factor is not calculated for 1 1/4Cr-1/2 Mo m

Project Ideas

I know my question won't suite everyone.

I just want to ask, as being a Freshman what are the different projects that I should do because my branch is Mechanical engineering?

Every answer would be important for me.

GPS Haters and Upside-Down Maps

GPS haters, gather 'round. Bob Holm of Saratoga Springs, New York, recently shared with us some photos of a unique Esso map that would seem like a complete waste of time in light of today's accepted practice of plugging in the address and listening to some disembodied voice tell you where to g