What is the name/manufacture of the sin bearing?

[epapp]

Originally Posted by Bigsmoothlee

Sorry, there is no way to send a text message to the bearing to ask if its doing well or not.

You can monitor camshaft deviation at intervals like 5000 miles
You can take your oil filter apart and check for metal particles
You can take your oil pan off at oil changes as well.

Broke and lazy dont work together. I remember not being able to afford many repairs or modifications in college, and being able to still get the result I wanted by rolling my sleeves up and getting the job done myself.

Cheap? Porsche sells an original IMS bearing for about $120, although I wouldnt recommend it.

Being too lazy to pull the transmission down? Tough s**t! If you dont want to pay someone $500 to paint your hallway, go to home depot, buy the paint, and do it yourself. No sympathy here.

Its not that bad to pull the transmission down anyway

Of course I do all my own work, short of mounting the tires to the rims. Although my friend claims he mounts tires with a sledge hammer and lots of pushing. Somehow it doesn't sound like thats the right thing to do with Porsche rims.

I'm not broke (but I would always do my own work before paying someone else to do it), and I have no reason to pull the transmission until next summer to put in my new clutch. If I needed to (or had signs of RMS/IMS failure) I would pull it in a heartbeat.

That being said, wouldn't an IMS bearing health solution be easy and nice if you didn't need to remove anything for it to work??

[Bigsmoothlee]

I guess, but theres no other way to monitor the health of that bearing...

Maybe theres a certain frequency when the bearing is failing that could be measured around the oil pump drive?

[Jake Raby]

If the guy has a good idea and wants to work hard to develop it and bring it to market, then more power to him. He needs to realize that the idea and making it work are really the easiest 25% of the process, the rest is what doesn't come easy.

That said the majority of my life my age worked against me in the industry. I was "fixing" mistakes made by those who were working on engines before I was born when I was a teenager. I started this company when I was 13 (literally) and ran it through the time I was in the USMC, most of the time out of my barracks room and selling parts and engines at the Pomona Swap Meet. I came home at age 22 and went full time, having to fight the old codgers that had to be proven wrong to get any respect from them.

Still today I fight that and I promised to never be one of those old bastards that stopped learning, didn't care and only thought that my time on this planet made me better or smarter than the next guy.

Anyone who decides to play this game better have strength and endurance, and be able to work while sleep depraved. They had better not care about having nights, weekends and holidays off and they better be willing to spend every single dime they have in savings and max out every credit card they own to chase the dream. If they don't, then they'd best just collect their paycheck from someone else and not sign it themselves.

[Jager]

There are a couple methods of detecting failing bearing assemblies that were developed as preventative maintenance practice for factory and shop machines. I am anxious to learn what epapp has to offer the automotive world so I can go buy that 997 I’ve been keeping an eye on!

http://www.mobiusinstitute.com/articles.aspx?id=2088

Using accelerometers or using a broadband pickup and heterodyning for our ears to hear are interesting thoughts but I think would be a challenge on internal combustible engines (with all the other noises and moving parts) but if one could be installed on the IMS bearing cover it might work… OK, I’m off to the lab to develop.

[Nine8Six]

Originally Posted by Jager

There are a couple methods of detecting failing bearing assemblies that were developed as preventative maintenance practice for factory and shop machines. I am anxious to learn what epapp has to offer the automotive world so I can go buy that 997 I’ve been keeping an eye on!

Detecting rolling element bearing faults with vibration analysis

Using accelerometers or using a broadband pickup and heterodyning for our ears to hear are interesting thoughts but I think would be a challenge on internal combustible engines (with all the other noises and moving parts) but if one could be installed on the IMS bearing cover it might work… OK, I’m off to the lab to develop.

Works on machinery that are heavy, grounded and has a constant rpm. Performing vibration's wave spectrum "analysis" in a dynamic environment (fluctuating rpm being one alone) requires heavily formulated algorithm. Not to mention that the system would need to go through a serious adaptation/learning cycle each time it is boot-up. Your Porsche would cost $150,000 (min) more if it had a such smart system attached to it.

Still cheaper to buy a second hand engine imo

[Jake Raby]

We utilized vibration analysis to try and create trend data for pinpointing failing bearings in 2007-2008. It was worthless! After putting equipment in the hands of dealers seeing 50+ M96 powered cars per week we could not gather any information that was reliable. Dual mass flywheels are enough by themselves to create variances in harmonics.

It was difficult enough to use this type of equipment when testing aircraft (Helicopters) utilizing iterations per second measurement values. Half the time we were better off setting up blade trim the old fashioned way with trim tabs, targets on the blades and hanging ourselves out the crew door with a strobe light to measure the blade paths to set track and balance.

[Nine8Six]

Originally Posted by Jake Raby

.... old fashioned way ........ hanging ourselves out the crew door with a strobe light to measure the blade paths to set track and balance.

and that, is what distinguish a true blood engineer from the other ones that otherwise are only good at reading English (e.g. technology datasheets).

Bare bone physics, simplicity and common sense always win

epapp needs to reinvent the bearing