The TRUE/FALSE of Thrust Bearing Failure
04-20-2007, 10:53 PM
#61
Former Vendor
Join Date: Feb 2004
Posts: 2,139
Likes: 0
Received 0 Likes
on
0 Posts
Hi,
Thank you for the kind words about the clamp.
As far as what you are proposing, we looked long and hard at the problem and possible solutions. The clamp went through a few different styles before we settled on the one we have now.
Your suggestions really will not be that cost effective since the work needed to accomplish what you describe will not be that easy and the results questionable.
Our clamp is bullet proof and was designed to arrest the driveshaft movement cold. Suffering a TBF of your engine is very costly and we decided to err on the side of "best" than merely "good enough."
As far as the cost, think about it. $380.00 USD for such a custom made piece is really peanuts. Many 928ers put thousands into wheel/tire packages, supercharger systems, radios/speakers and leather interior packages for their 928s. At $380.00 this is one of the best bargains there is for the 928 for what it can stop from happening.
I know you are a DIYer from your byline about your homebuilt supercharger system and I know what you are saying and trying to accomplish. We have been through it and picked the best solution for the money.
You should have seen the new TT system we were designing to stop this problem, now that would have been costly...
Kind regards,
Constantine
Thank you for the kind words about the clamp.
As far as what you are proposing, we looked long and hard at the problem and possible solutions. The clamp went through a few different styles before we settled on the one we have now.
Your suggestions really will not be that cost effective since the work needed to accomplish what you describe will not be that easy and the results questionable.
Our clamp is bullet proof and was designed to arrest the driveshaft movement cold. Suffering a TBF of your engine is very costly and we decided to err on the side of "best" than merely "good enough."
As far as the cost, think about it. $380.00 USD for such a custom made piece is really peanuts. Many 928ers put thousands into wheel/tire packages, supercharger systems, radios/speakers and leather interior packages for their 928s. At $380.00 this is one of the best bargains there is for the 928 for what it can stop from happening.
I know you are a DIYer from your byline about your homebuilt supercharger system and I know what you are saying and trying to accomplish. We have been through it and picked the best solution for the money.
You should have seen the new TT system we were designing to stop this problem, now that would have been costly...
Kind regards,
Constantine
Originally Posted by Imo000
Constantine,
I think the new clamp is a very good product and high horsepower 928 would probably need this product but at the same time, it is somewhat of an over the top solution to the problem on a near stock 928. Since the Locktite procedure has been used and proven in the past means that the additional required force to keep the TT in place is slightly more than what the OE clamp can produce. With that in mind, and as agricultural the OE clamp is, a second clamp should fix the problem in a rather simple way.
I think the original problem with the clamp is that Porsche made it too narrow. They could have easily made the clamp twice as wide and have two bolts in it. There is more than enough room on the collar to accommodate a wider clamp but for some reason Porsche decided that the narrow one is sufficient. Correct me if I’m wrong, but since the collar is not the problem, why not address only the clamp and either use a second one or make a new one that has the same characteristics as two OE clamps?
I think the new clamp is a very good product and high horsepower 928 would probably need this product but at the same time, it is somewhat of an over the top solution to the problem on a near stock 928. Since the Locktite procedure has been used and proven in the past means that the additional required force to keep the TT in place is slightly more than what the OE clamp can produce. With that in mind, and as agricultural the OE clamp is, a second clamp should fix the problem in a rather simple way.
I think the original problem with the clamp is that Porsche made it too narrow. They could have easily made the clamp twice as wide and have two bolts in it. There is more than enough room on the collar to accommodate a wider clamp but for some reason Porsche decided that the narrow one is sufficient. Correct me if I’m wrong, but since the collar is not the problem, why not address only the clamp and either use a second one or make a new one that has the same characteristics as two OE clamps?
04-20-2007, 10:59 PM
#62
Rennlist Member
Constantine..........is your 'clamp' available and if so (whithout reading through reams of threads/posts) what's the install process...........thx.
04-21-2007, 07:11 AM
#63
Former Vendor
Join Date: Feb 2004
Posts: 2,139
Likes: 0
Received 0 Likes
on
0 Posts
Hi Malcolm,
Yes there are a few left from the second batch. Just send me a private message with your email address and I will send you the install instructions.
Constantine
QUOTE=the flyin' scotsman]Constantine..........is your 'clamp' available and if so (whithout reading through reams of threads/posts) what's the install process...........thx.[/QUOTE]
Yes there are a few left from the second batch. Just send me a private message with your email address and I will send you the install instructions.
Constantine
QUOTE=the flyin' scotsman]Constantine..........is your 'clamp' available and if so (whithout reading through reams of threads/posts) what's the install process...........thx.[/QUOTE]
04-21-2007, 12:41 PM
#64
Rest in Peace
Rennlist Member
Rennlist Member
Join Date: May 2006
Location: Bird lover in Sharpsburg
Posts: 9,903
Likes: 0
Received 2 Likes
on
2 Posts
Originally Posted by Constantine
Hi,
You should have seen the new TT system we were designing to stop this problem, now that would have been costly...
Kind regards,
Constantine
You should have seen the new TT system we were designing to stop this problem, now that would have been costly...
Kind regards,
Constantine
04-23-2007, 12:35 PM
#65
Captain Obvious
Super User
Super User
Originally Posted by Constantine
Hi,
Thank you for the kind words about the clamp.
As far as what you are proposing, we looked long and hard at the problem and possible solutions. The clamp went through a few different styles before we settled on the one we have now.
Your suggestions really will not be that cost effective since the work needed to accomplish what you describe will not be that easy and the results questionable.
Our clamp is bullet proof and was designed to arrest the driveshaft movement cold. Suffering a TBF of your engine is very costly and we decided to err on the side of "best" than merely "good enough."
As far as the cost, think about it. $380.00 USD for such a custom made piece is really peanuts. Many 928ers put thousands into wheel/tire packages, supercharger systems, radios/speakers and leather interior packages for their 928s. At $380.00 this is one of the best bargains there is for the 928 for what it can stop from happening.
I know you are a DIYer from your byline about your homebuilt supercharger system and I know what you are saying and trying to accomplish. We have been through it and picked the best solution for the money.
You should have seen the new TT system we were designing to stop this problem, now that would have been costly...
Kind regards,
Constantine
Thank you for the kind words about the clamp.
As far as what you are proposing, we looked long and hard at the problem and possible solutions. The clamp went through a few different styles before we settled on the one we have now.
Your suggestions really will not be that cost effective since the work needed to accomplish what you describe will not be that easy and the results questionable.
Our clamp is bullet proof and was designed to arrest the driveshaft movement cold. Suffering a TBF of your engine is very costly and we decided to err on the side of "best" than merely "good enough."
As far as the cost, think about it. $380.00 USD for such a custom made piece is really peanuts. Many 928ers put thousands into wheel/tire packages, supercharger systems, radios/speakers and leather interior packages for their 928s. At $380.00 this is one of the best bargains there is for the 928 for what it can stop from happening.
I know you are a DIYer from your byline about your homebuilt supercharger system and I know what you are saying and trying to accomplish. We have been through it and picked the best solution for the money.
You should have seen the new TT system we were designing to stop this problem, now that would have been costly...
Kind regards,
Constantine
Thanks for the comprehensive reply. What you wrote makes sense.
01-30-2010, 08:10 PM
#66
Track Day
Join Date: Jan 2010
Location: New Hampshire West Mid-State
Posts: 21
Likes: 0
Received 1 Like
on
1 Post
What did the TBF fix cost
As a guy who suffered through a TBF, I would say that your statement is false. If your car suffers a TBF, you'll know why owners are scared about it. If you take the necessary precautions, then you can pretty much limit the possible risk. But as these cars get older, more miles, and new owners come into the group, its definitely something to be wary of. Its not really an issue of being scared about it as much as it is of being aware of the potential problem and how to prevent it. When I bought my car, it was a couple of years before I even heard of Rennlist. And even after that I never heard of a TBF, until it happened to me. But thankfully, the 928 community seems to be growing and the average owner far more educated about such issues. That will hopefully help to prevent further catastrophic failures in the future.
I think I have a TBF I'll know next week. What does it cost to repair or new block etc.
Rich
