Tacho spy and usefulness on rod bearing analysis

[crypticc]

Wondering if when this is available it could finally be a tool for measuring the relative age/condition of poor engines without disassembly....

http://www.tacho-spion.de/en/der-tacho-spion

As I understand it uses ultrasound to determine the engines relative wear compared to it's actual age and I wonder if RB issues would show up without needing a full tear down.
Clearly would need calibrating with cars pre-teardown and bearings ranked for good/average/bad and if it relates to var harmonics I would guess non SC cars only

What do you think?

Chris

[///M Power-Belgium]

That's really interesting ...
I never saw it before , and I would love to know if it detects by sound our S65 bearing wear noises too .
So , if this works it would be a great sound tool for our S65 engines.
Thanks for sharing .

[crypticc]

Originally Posted by ///M Power-Belgium

That's really interesting ...
I never saw it before , and I would love to know if it detects by sound our S65 bearing wear noises too .
So , if this works it would be a great sound tool for our S65 engines.
Thanks for sharing .

Their representive is looking for more test partners. They've no one in the UK yet but I could see on their site they have many test partners in GER and some prescence in USA amongst others.
A message has also been forwarded to Michael who is their lead ultrasound engineer/designer and i hope he opines as to whether their expected vs actual results can be tuned towards specific indicators of impending failing bearings before more obvious signs.

[crypticc]

P.s.
This thread is not intended to replace the other excellent threads below for thoughts on causes or failures...
wiki
http://www.m3post.com/forums/showthread.php?t=892838

engine failures
http://www.m3post.com/forums/showthread.php?t=786615

Is there a link to a thread which shows the state of bearings removed from various cars...?

[///M Power-Belgium]

Originally Posted by crypticc

P.s.
This thread is not intended to replace the other excellent threads below for thoughts on causes or failures...
wiki
http://www.m3post.com/forums/showthread.php?t=892838

engine failures
http://www.m3post.com/forums/showthread.php?t=786615

Is there a link to a thread which shows the state of bearings removed from various cars...?

Sure there are threads with removed bearings .
Here is Malek's thread with pics from removed bearings in bad condition , and Malek has vast experience...knowledge of our S65 engines and replaced of course many bearings => pages 3-4-5-6-7-8 will show you some pics http://www.m3post.com/forums/showthr...t=malek&page=3

[aus]

Originally Posted by crypticc

P.s.

Is there a link to a thread which shows the state of bearings removed from various cars...?

Not that I now of. It would be a scary thread since most of the bearings replaced show excessive wear. There are a handful of posts that showed normal wear for the mileage but the majority I've seen showed a lot of wear.

.