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YOUR RESEARCHWhat was Porsche thinking moving from double row to single row IMS
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Use 4 aluminum bolts
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I can think of many many instances of this, and one that really made me "gasp" was the tech training of the "new vario cam adjusters" on 2010 GT3 and also Panamera/Cayenne, where they redesigned the parts for weight savings and also used 4 aluminum bolts to hold them together.
What was Porsche thinking moving from double row to single row IMS
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Leading evidence: 'Use 4 aluminum bolts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace bearing' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
Very interesting....like many others, I would have guest cost as the main factor in replacing the bearing...
What was Porsche thinking moving from double row to single row IMS
Replace engines
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If they ended up replacing the engines on 5% of these, so 5,000 engines at a cost of $6,000 per engine it cost them $30,000,000.
What was Porsche thinking moving from double row to single row IMS
Replace these
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Suggestion
They even had a "service action" to replace these with steel bolts.
What was Porsche thinking moving from double row to single row IMS
Run company....it has
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Suggestion · Original poster
Yep, you guys are right....the accounts were running the company....it has to be the only explanation
What was Porsche thinking moving from double row to single row IMS
Use 4 aluminum bolts
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I can think of many many instances of this, and one that really made me "gasp" was the tech training of the "new vario cam adjusters" on 2010 GT3 and also Panamera/Cayenne, where they redesigned the parts for weight savings and also used 4 aluminum bolts to hold them together.
What was Porsche thinking moving from double row to single row IMS
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19 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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So I compared the IMS from my 2000 aero which was a double row to the IMS we replaced in my son's 2002 which was a single row. What was Porsche a thinking. I was glad I took the single row out....it was wobbly and bound a little when rotated...not a good sign.
Single row on left ....double row on right...why would you cheapen the IMS with single row. What were they thinking ?
When you're asking about design flaws during a time when a car company was facing bankruptcy, you're probably not going to get the mechanical engineering answer you seek.
I'm willing to bet the accountants during that time will be able to answer your question.
l've accepted that the whole M96 engine family was poorly executed, for whatever reasons. I'm just glad there are aftermarket solutions to make a well-thoughtout car relevant again.
My99996, ....you are right...it is an LN...it is out of my 2000 which had an oil starvation failure at track...now has a 997 3.8 in it. It was not an IMS failure the LN is still fine. I was just comparing the sizes which are the same regardless of whose IMS.
Nice way to leverage.
Please share a single instance of this occurring, in writing with a Porsche letterhead, or retract this statement.
I'll be standing by. The clock starts now.
The correct answer ? Is weight savings.
You would not believe how much Porsche values a few grams of weight savings. I have been to many new product tech training classes where it sounds like a infomercial where they describe with great pride of how they redesigned to make something lighter by a few grams.
I can think of many many instances of this, and one that really made me "gasp" was the tech training of the "new vario cam adjusters" on 2010 GT3 and also Panamera/Cayenne, where they redesigned the parts for weight savings and also used 4 aluminum bolts to hold them together. The aluminum bolts were a source of failure that destroved many GT3 engines and also Panamera/Cayenne. They even had a "service action" to replace these with steel bolts.
Weight savings is the only correct answer, since cost would have been higher to redesign for a different size bearing, it would have been cheaper to have stayed with the dual row bearing.
Just playing with some hypothetical numbers but lets take 100,000 M96 engines. If Porsche saved $10 per engine they saved $1,000,000. If they ended up replacing the engines on 5% of these, so 5,000 engines at a cost of $6,000 per engine it cost them $30,000,000. The accountants that made this decision hopefully are long gone!
and you can see how skewed the numbers are. Even it the saved $50 per engine and it cost them less than $6,000 per engine, which i doubt with parts and labor, and did fewer cars this was still a horrible decision.
I suspect that individual was rediscovered. By that, I mean has been previously banned. Speculation on my part: but I have seen pretty much all of his seven(!) posts. His agenda seemed clear, to me.
Good riddance.
