Great visual understanding on the IMS bearing (VIDEO)
03-15-2015 | 05:50 AM
#31
Race Director
Joined: Jun 2013
Posts: 11,357
Likes: 463
From: Oceanside/Vista (N. San Diego County), CA
03-15-2015 | 12:09 PM
#32
Rennlist Member
Joined: Oct 2014
Posts: 6,808
Likes: 1,186
From: L.I. NY
The M96 has them too.. The aeration they create is a trade off for the cooling they supply to the underside of the Pistons. That said, lots of my engines no longer have them when I'm done with them. I have al alternative method of achieving the same result.
As far as selling things goes, well, I have been the developer for LN since before they were a company. Their very first product is alive and well on my 2.6L, 220 HP 356 engine.... That's the first set of Nickies cylinders.
Residual income on a development can't be assessed without a ton of crap. I do my work for LN and collect a check, or I invent and develop the component and sell it to LN or someone like them, if it's a BMW, MB or other engine. I care nothing about collecting from each sale, this for RS me to forge into new ground to find each awaiting paycheck.
Why am I so intense about this if I stand nothing to gain? Well, it's no secret that I like to fight. Come spend a weekend at one of my classes, in my world, and you'll see how I'm wired. You'll be entertained and educated at the same time. We have a lot of fun, just ask Ltusler, he was here last month for Rebuikd school and will be back in 2 weeks for the M96 Performance Engine Class :-)
As far as selling things goes, well, I have been the developer for LN since before they were a company. Their very first product is alive and well on my 2.6L, 220 HP 356 engine.... That's the first set of Nickies cylinders.
Residual income on a development can't be assessed without a ton of crap. I do my work for LN and collect a check, or I invent and develop the component and sell it to LN or someone like them, if it's a BMW, MB or other engine. I care nothing about collecting from each sale, this for RS me to forge into new ground to find each awaiting paycheck.
Why am I so intense about this if I stand nothing to gain? Well, it's no secret that I like to fight. Come spend a weekend at one of my classes, in my world, and you'll see how I'm wired. You'll be entertained and educated at the same time. We have a lot of fun, just ask Ltusler, he was here last month for Rebuikd school and will be back in 2 weeks for the M96 Performance Engine Class :-)
03-15-2015 | 03:09 PM
#34
Race Director
Joined: Sep 2012
Posts: 10,422
Likes: 214
From: SOcialist republic of CALifornia
Front-facing cameras flip the image horizontally. If they didn't, your head would explode, since right is left and left is right in non-flipped video. You see a mirror image of yourself instead, which the brain is much more comfortable with.
03-16-2015 | 01:29 AM
#36
Racer
Joined: Nov 2013
Posts: 432
Likes: 2
From: Arizona
docmirror would rather argue a position than have an open discussion. He requests empirical evidence of foam vs froth on a DOF spray bearing. Well, maybe in a few years there will be enough out there in use to get that evidence. In the meantime, I'm disinclined to automatically think it's better than the dual row ceramics. I don't know about you guys, but I don't have time for that argument for entertainment stuff. He calls himself a "thread-killer".
Tells me all I ever need to know about him.
Carry on, fellas.
Tells me all I ever need to know about him.
Carry on, fellas.
03-16-2015 | 02:24 AM
#37
Racer
Joined: Nov 2013
Posts: 432
Likes: 2
From: Arizona
That's nicely done. You covered aeration and cavitation well. Wondering then - is the jet of oil sprayed on this particular bearing causing cavitation?(yes, I'm being facetious here) Is it causing aeration? Do you have any proof, or are you basing it on generally accepted lubricating principles(adj)? If so, can you site those general principles? Can you also go into deeper depth on the difference between aerated and "foamy"? Is foamy oil aerated, or is aerated oil foamy?
Finally, I can surely agree with you that less air of any kind in the lubricant is good, and even less is better. Now, all we need is some kind of causation of, or differentiation between a tiny orifice spraying oil onto a ball bearing verses a bath of oil contacting the same open case bearing.
Finally, I can surely agree with you that less air of any kind in the lubricant is good, and even less is better. Now, all we need is some kind of causation of, or differentiation between a tiny orifice spraying oil onto a ball bearing verses a bath of oil contacting the same open case bearing.
Take a standard garden hose, place your thumb over 95% of the orifice, stick it in your mouth, and turn the spigot full on. Note results.
How much air did you injest in the second test compared to the first?
Even a caveman can do it.
lol
03-16-2015 | 11:32 AM
#38
Instructor
Joined: Jan 2015
Posts: 211
Likes: 3
From: Göteborg, Sweden.
English is after all not my native languge, I do however understand most parts of the video.
But if I understand things properly, did the seal casusing the problem only happen when they updated it? Meaning cars pre 2000 should be safe? No matter 996, cayman or a boxster?
With regards, Jonathan.
But if I understand things properly, did the seal casusing the problem only happen when they updated it? Meaning cars pre 2000 should be safe? No matter 996, cayman or a boxster?
With regards, Jonathan.
03-16-2015 | 05:18 PM
#39
Rennlist Member
Joined: Oct 2014
Posts: 6,808
Likes: 1,186
From: L.I. NY
"Meaning cars pre 2000 should be safe? No matter 996, cayman or a boxster?"
Nope...According to Jake (and many others, but he's the accepted Expert...) they can all blow up and they all have many different modes of failure. The early dual row IMS bearings (up to '99 - early 2000) seem to be the least susceptible to that particular type of failure, but there are many other types of engine failure that can bite you. The best chance at peace of mind is to be vigilant with preventative maintenance, but there is no such thing as a "silver bullet" to combat engine failure of the M96. At best it seems there are a whole bunch of small things you can do like oil type, change interval, spin on filter, ims guardian, lower temp. thermostat, third radiator etc. etc. etc... Good luck
Nope...According to Jake (and many others, but he's the accepted Expert...) they can all blow up and they all have many different modes of failure. The early dual row IMS bearings (up to '99 - early 2000) seem to be the least susceptible to that particular type of failure, but there are many other types of engine failure that can bite you. The best chance at peace of mind is to be vigilant with preventative maintenance, but there is no such thing as a "silver bullet" to combat engine failure of the M96. At best it seems there are a whole bunch of small things you can do like oil type, change interval, spin on filter, ims guardian, lower temp. thermostat, third radiator etc. etc. etc... Good luck
03-16-2015 | 05:33 PM
#40
Drifting
Joined: Apr 2014
Posts: 2,335
Likes: 25
From: Los Angeles
Buried in this thread is an interesting issue that seldom gets much discussion in terms of prevention by the current owner -oil choice & aeration or foaming. As mentioned by Jake the swirl pots had several revisions, we have deep sump/baffle kits debates about 2 vs. 4 scavenge pumps and oil-squirters. Very little is said about anti-foam additives in oil(Other than JoeGibbs DT).
Since Porsche obviously struggled with th e foam issue, it is surprising that the recommendation for an oil with relatively high foaming tendency(Mobil 1 -because of detergents and low anti-foam additives) has not been superseded by a specifically low-foam oil. Perhaps because it is an unseen problem ? There is a rare opportunity to learn about this from the problems of an engine that would seem the polar opposite of an M96.
http://www.intellidog.com/dieselmann/powers~1.htm
Since Porsche obviously struggled with th e foam issue, it is surprising that the recommendation for an oil with relatively high foaming tendency(Mobil 1 -because of detergents and low anti-foam additives) has not been superseded by a specifically low-foam oil. Perhaps because it is an unseen problem ? There is a rare opportunity to learn about this from the problems of an engine that would seem the polar opposite of an M96.
http://www.intellidog.com/dieselmann/powers~1.htm
it all comes back to the air cooled engines doesnt it
03-16-2015 | 10:55 PM
#42
Racer
Joined: Nov 2014
Posts: 424
Likes: 4
From: Las Vegas Nv
There are many ways for these engines to fail. Jake sees pretty much all of them and thats about the only reason he sees these cars. What is also posted here on this site is plenty of cars that never had one of the failures and they have some extremely high mileage. The odds are in favor of the cars lasting a long long time, but it is and always will be a crapshoot. Steps can be taken to help with the odds but its still a crapshoot to an extent. Personally I like the little upgrades that can be done according to Jake who in my mind is a fanatic about these engines. Jake says use Joe Gibbs oil, he works with the guy to develop what he considers a better way to go for these engines, why not listen to him, what can it hurt? When its all said and done these things will never be as reliable as a 350 Chevy, we just got to live with it and hope that the car each of us have will be one of the ones that comes close, it happens plenty.
