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TuffguyF4i

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    Help diagnose: Engine stalled, FI light flickering.---Now diagnosed!

    in The Garage

    Posted

    Thanks guys, this gives me more hope that it's just the weak battery. I check the charge level and CCA on all batteries before installing and note the CCA after a few cycles then monitor from there. I have too many batteries in use to ignore them and get stuck with another avoidable expense.

    Buy a neverstart at Walmart. Charge overnight. Try it in the morning.

    Regardless of outcome, return the neverstart.

    Vern......Talk to me

    in The Garage

    Posted

    No plug and play LED bulb is going to have the same output as an HID projector or even HID PNP.

    Look at the stock LED headlight configurations in the new cars these days. Take the Denali or the Acura MDX or the new Audi...they all have multiple LED emitters behind very high end lenses. Anything less and you aren't getting light on the road any where near an HID.

    Oil, Oil Pressure, and Oil life question.

    in The Garage

    Posted

    You guys know that oil viscosity is supposed to change, as the engine warms? 10W40 will vary somewhere between 10 and 40. And as it gets chewed up by motorcycle gears, 5 and maybe as low as 20.

    Dave. I think your oil pressure will stay very close to the same PSI even as it degrades. For all practical purposes, it is a closed loop system and the pump sustains the needed pressure unless something is very wrong.

    Your two paragraphs contradict each other. Yes, there is relief valve but it only regulates maximum pressure. I don`t think you understand how lubricating system works, it is kind of open, oil from various parts of the engine drips down to the oil an where it starts its journey again.

    In the nutcase pressure at given point of lubrication system in the engine depends on rpm and viscosity. So different oil can give varied pressure readings all other things being equal.

    I have a high quality aftermarket oil pressure gauge in my rx7. I had a fairy large and thick (3.5 ich) intercooler blocking somewhat the airflow to the oil cooler. I have since re- engineered my radiator/intercooler/ac/oil cooler arrangement so it now get unobstructed flow of air.

    The oil pressure for given driving conditions went up by 20-25 % . Why ? Because the oil temps went down and consequently viscosity went up.

    Where are you measuring that pressure? At the pump?

    I'm sure as oil cools and viscosity increases the pump is doing more work and it has more resistance against the pump. You will also be picking up resistance through the entire system.

    Thanks for the info. Always happy to learn more.

    Oil, Oil Pressure, and Oil life question.

    in The Garage

    Posted · Edited by TuffguyF4i

    You guys know that oil viscosity is supposed to change, as the engine warms? 10W40 will vary somewhere between 10 and 40. And as it gets chewed up by motorcycle gears, 5 and maybe as low as 20.

    Dave. I think your oil pressure will stay very close to the same PSI even as it degrades. For all practical purposes, it is a closed loop system and the pump sustains the needed pressure unless something is very wrong.

    Zero is right,, the PSI for healthy engine wear is likely a wide range.

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