Are his premises or assumptions valid?...every time the engine is started, several hundred revolutions of the crankshaft occur before pressurized oil is present to lubricate the bearings.
This design flaw results in dry bearing abrasion each and every time the engine is started.
If this could be avoided up to 40% to 60% of total engine wear would be eliminated.
well for sure there's substantial amount of wear during cold starts, all car manufacturers and oil companies agree to that.
Interesting...
But why haven't the big automakers already integrated a similar device into their engines...
actually its not new... the idea and concept has been around for more than ten years. A pre-lube system uses an electrically powered oil pump to pump motor oil from the oilpan up the engine before starting.Originally Posted by theveed
The onyl reason why car manufacturers has not included it into their cars is it will make cars last longer. It will work against the desired trend of replacing a car every 3 to 5 years.
yup the device is a good thing that it helps keep your engine to last longer with less wear & tear.Originally Posted by mrpink
it's well recommended here
http://www.chris-longhurst.com/carbi...oil_bible.html
looking at the picture and reading the write up, it's a pressurised reservoir (most probably diaphragm or piston type) with a solenoid valve and hoses for connecting. $189.95! that same reservoir is what you have on a self contained electric water pressure pump hehehehe! add a 12 volt solenoid, a hose and voila! i bet total cost won't add up to half of that amount.
actually the concept (prelube-ing an engine before starting) is not just more than 10 years old, it's a lot longer than that. big diesel engines dating back from before wwII already had prelube pumps. in fact most modern BIG diesel engines will not start unless oil pressure is built up first and circulated for a few minutes.
This is the selling point of Castrol Magnatec oil (available locally)... It supposedly contains "magnetic properties" kaya kahit before starting, may oil film na agad sa pistons mo. I used it a lot in the old days and it was a pretty good oil....
Its true in the initial cold start. There is some wear, but the degree of wear may not be significant at all to warrant this device. Mechanical engine parts has a fixed designed-in life span, this can increase it somewhat. IS that "somewhat" worth it ? Is the question.
First we must realised that even for over-night or severals parked car engine, the mechanical parts are not completely dry. There is a thin film of oil on them. They provide the first line or lubrication, and that seems sufficient for engines designed to date. As long as people, keep down to below 3K rpm before the engine is properly warmed up, it should be ok, according to the design.
Example : US people have taken a well maintained BMW engine apart after 200K miles of normal service and inspected the parts. Virtually brand new condition. So , do you need this additional lubing ?.
just a thought... bat di kaya gumawa mga manufacturers ng isang pump of some sort that turns on automatically for a few secs that pumps oil to the top part of the engine that needs to be lubed pag naka turn sa "ON" yung ignition before starting?
Parang how glow plug relays work sa diesel... diba diba.
di ba kaya ng windshield washer pump? baka meron dyan may old washer pump try nyo nga kung kaya mag-pump ng cold engine oil. di bale kahit 5-10 psi lang, prelube lang naman e. experiment hehehehe!Originally Posted by theveed
Di ata pre, malabot sobra for the windshield pump siguro... but im no engineer heheh...