Using Durametric to Detect IMS Bearing Weakness

[Jaxonalden]

JFP,

With that philosophy, and I know Jake did his homework on his Guardian, but what if there was software that was constantly monitoring this data which the computer already is. Then have that monitoring trip an Check Engine light when the cam deviation fluctuates or goes beyond a predetermined value (+/- 4 degrees)?

This sounds like more of a tell tale sign of impending failure than a chip detector...even have a safety net and if those values are exceeded, shut the engine down to prevent catastrophic failure.

Sound like a wiener?

P.S. If shutting down the engine sounds dangerous just think if it hand grenades in traffic.

[jaykay]

Originally Posted by Jaxonalden

JFP,

With that philosophy, and I know Jake did his homework on his Guardian, but what if there was software that was constantly monitoring this data which the computer already is. Then have that monitoring trip an Check Engine light when the cam deviation fluctuates or goes beyond a predetermined value (+/- 4 degrees)?

This sounds like more of a tell tale sign of impending failure than a chip detector...even have a safety net and if those values are exceeded, shut the engine down to prevent catastrophic failure.

Sound like a wiener?

P.S. If shutting down the engine sounds dangerous just think if it hand grenades in traffic.

Yes I am with you....this was my ims gaurdian guess but I was wrong....just didn't think about a simple chip detector. Chips can come from anywhere so it would go off from things other than just the ims bearing; I was thinking ims bearing failure isolation. I don't believe you would be able to catch chain tensioner wear with the
guardian (plastic is not magnetic). Cam shaft deviation monitoring might be able to give you tensioner wear due to increased chain slop and loss of motion. This what is what I was most interested in as I have changed my bearing. I guess it was just wishful thinking.

If chain tensioner wear can be shown to produce cam shaft deviation we may have our own product! We could perhaps monitor cam shaft deviation via the OBD port and have an alarm go off when deviation goes outside of 5 degrees. I was thinking of just connecting your iPhone to the OBD port to do a check every so often.

Oh well...I suppose Durametric has this covered already!

[Jaxonalden]

I'm with you Jaykay, I believe monitoring the cam deviation in concert with a chip detector is the way to go. Alarm at 5 degrees?, I'd go with .5 degrees. Any fluctuating deviation is not a good thing, slop is slop.

It can't be hard to monitor those two values and then trigger some sort indicator. This can't be that tough to figure out and then we can all sleep a little better at night. I'll get right on it.

[jaykay]

Yes thanks for the decimal point....yes fluctuation with respect to each other

I am glad you are the electronics wizard!

Maybe an engine builder could speak to the exact nature of deviation with respect tensioner wear

[ChairmanRon]

Originally Posted by Jaxonalden

JFP,

With that philosophy, and I know Jake did his homework on his Guardian, but what if there was software that was constantly monitoring this data which the computer already is. Then have that monitoring trip an Check Engine light when the cam deviation fluctuates or goes beyond a predetermined value (+/- 4 degrees)?

This sounds like more of a tell tale sign of impending failure than a chip detector...even have a safety net and if those values are exceeded, shut the engine down to prevent catastrophic failure.

Sound like a wiener?

P.S. If shutting down the engine sounds dangerous just think if it hand grenades in traffic.

Brilliant idea.