Brand new engine mount failure.
11-16-2010, 01:51 AM
#1
Three Wheelin'
Thread Starter
Brand new engine mount failure.
I'm sitting here in shock. I'm putting together my cross member and engine mounts. I torqued the first mount. Then when I had hardly even begun to torque the second one the bolt fractured. Snap!
They're the Porsche parts. I bought them about a year ago, and am just now getting around to doing the job.
At $350 per set, I am wondering if anyone knows whether this is something I can send back, or is this just one of those things where I eat a few hundred bucks.
Any ideas? I don't know if I should say where I bought them. If it were business hours I would be calling them. But I want to see if anyone has ideas before I order another pair.
I guess it beats having it break after it's installed. I'll look at the bright side.
Now that I'm inspecting it, the part is obviously over hardened. It's Rockwell 60, or so. Like a file.
They're the Porsche parts. I bought them about a year ago, and am just now getting around to doing the job.
At $350 per set, I am wondering if anyone knows whether this is something I can send back, or is this just one of those things where I eat a few hundred bucks.
Any ideas? I don't know if I should say where I bought them. If it were business hours I would be calling them. But I want to see if anyone has ideas before I order another pair.
I guess it beats having it break after it's installed. I'll look at the bright side.
Now that I'm inspecting it, the part is obviously over hardened. It's Rockwell 60, or so. Like a file.
11-16-2010, 02:54 AM
#3
Three Wheelin'
Thread Starter
Argh! I just ordered another pair. But just in case, would you give a bit of info on the Ford mounts.
When it comes to German stuff, I'm a purist. I have a German milling machine, and it's all stock parts, and never anything but what was intended.
This is my first bad experience. They're probably outsourcing their heat treatment to India. All due respect to Indian technology. I'm just being a bigot.
When it comes to German stuff, I'm a purist. I have a German milling machine, and it's all stock parts, and never anything but what was intended.
This is my first bad experience. They're probably outsourcing their heat treatment to India. All due respect to Indian technology. I'm just being a bigot.
11-16-2010, 03:04 AM
#4
Archive Gatekeeper
Rennlist Member
Rennlist Member
I partly disagree with Dan about the Ford mounts, their quality control has taken a dive and you really don't know what you're getting in 2010. I have a pair in the GT that are still ok but I put a set in the GTS and they were jello. Replaced them with OEM mounts and all is well. I don't recall ever hearing about a flaw like this with a new factory mount. Weird.
11-16-2010, 03:07 AM
#5
Rennlist
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I'm sitting here in shock. I'm putting together my cross member and engine mounts. I torqued the first mount. Then when I had hardly even begun to torque the second one the bolt fractured. Snap!
They're the Porsche parts. I bought them about a year ago, and am just now getting around to doing the job.
At $350 per set, I am wondering if anyone knows whether this is something I can send back, or is this just one of those things where I eat a few hundred bucks.
Any ideas? I don't know if I should say where I bought them. If it were business hours I would be calling them. But I want to see if anyone has ideas before I order another pair.
I guess it beats having it break after it's installed. I'll look at the bright side.
Now that I'm inspecting it, the part is obviously over hardened. It's Rockwell 60, or so. Like a file.
They're the Porsche parts. I bought them about a year ago, and am just now getting around to doing the job.
At $350 per set, I am wondering if anyone knows whether this is something I can send back, or is this just one of those things where I eat a few hundred bucks.
Any ideas? I don't know if I should say where I bought them. If it were business hours I would be calling them. But I want to see if anyone has ideas before I order another pair.
I guess it beats having it break after it's installed. I'll look at the bright side.
Now that I'm inspecting it, the part is obviously over hardened. It's Rockwell 60, or so. Like a file.
__________________
greg brown
714 879 9072
GregBBRD@aol.com
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
greg brown
714 879 9072
GregBBRD@aol.com
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
11-16-2010, 05:04 AM
#6
Three Wheelin'
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Argh! I just ordered another pair. But just in case, would you give a bit of info on the Ford mounts.
When it comes to German stuff, I'm a purist. I have a German milling machine, and it's all stock parts, and never anything but what was intended.
This is my first bad experience. They're probably outsourcing their heat treatment to India. All due respect to Indian technology. I'm just being a bigot.
When it comes to German stuff, I'm a purist. I have a German milling machine, and it's all stock parts, and never anything but what was intended.
This is my first bad experience. They're probably outsourcing their heat treatment to India. All due respect to Indian technology. I'm just being a bigot.
The 928 is a high maintenance car because the quality of the OEM parts. Anytime I can upgrade to something more reliable I do. I buy after market bearings and seals - which seem to hold up better then Porsche original. I swapped out the OB alternators with a Chevy Delco. Hoses in critial places I replace with silicon based hoses - better tech. The one under the radiator overflow bottle is a logical target as well as the one from the heater valve to the block. I try to use stainless steel hardware when possible - especially on the exhaust system.
The idea is to have a more reliable and better Porsche than Porsche made. In the bargain I save a lot of money over what Porsche sells.
11-16-2010, 05:54 AM
#7
Nordschleife Master
One rata tat tat or two? (joking)
I would certainly give the vendor a chance to make it good, long time, maybe past the normal warranty, but fail on install is epic fail. Be glad it didn't fail on the road.
Why order a pair? why not one?
Ford pickup mounts aren't whats used anymore, we have moved up the food chain to Volvo. Roger at ww.928srus.com has them.
BTW the real purists insist on only WEST German items.
I would certainly give the vendor a chance to make it good, long time, maybe past the normal warranty, but fail on install is epic fail. Be glad it didn't fail on the road.
Why order a pair? why not one?
Ford pickup mounts aren't whats used anymore, we have moved up the food chain to Volvo. Roger at ww.928srus.com has them.
BTW the real purists insist on only WEST German items.
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11-16-2010, 12:34 PM
#9
Three Wheelin'
Thread Starter
Thanks for the replies. The torque wasn't even to the point where I needed a torque wrench. I was just setting the mount on the cross member in preparation for installing the crossmember. I intended to loosen it a bit to line up the upper holes.
As for getting a pair, I'm not using the other mount.
Now to see if I can locate a receipt.
As for getting a pair, I'm not using the other mount.
Now to see if I can locate a receipt.
11-16-2010, 12:41 PM
#10
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Never had any problems with the mounts. Bought mine at Napa Auto Parts. There are two kinds - hydralic and solid. I found the Ford Ranger were mostly solid mounts and they are inexpensive as well.
The 928 is a high maintenance car because the quality of the OEM parts. Anytime I can upgrade to something more reliable I do. I buy after market bearings and seals - which seem to hold up better then Porsche original. I swapped out the OB alternators with a Chevy Delco. Hoses in critial places I replace with silicon based hoses - better tech. The one under the radiator overflow bottle is a logical target as well as the one from the heater valve to the block. I try to use stainless steel hardware when possible - especially on the exhaust system.
The idea is to have a more reliable and better Porsche than Porsche made. In the bargain I save a lot of money over what Porsche sells.
The 928 is a high maintenance car because the quality of the OEM parts. Anytime I can upgrade to something more reliable I do. I buy after market bearings and seals - which seem to hold up better then Porsche original. I swapped out the OB alternators with a Chevy Delco. Hoses in critial places I replace with silicon based hoses - better tech. The one under the radiator overflow bottle is a logical target as well as the one from the heater valve to the block. I try to use stainless steel hardware when possible - especially on the exhaust system.
The idea is to have a more reliable and better Porsche than Porsche made. In the bargain I save a lot of money over what Porsche sells.
https://rennlist.com/forums/928-foru...ease-read.html
We experienced similar issues with locally purchased units form Napa, Autozone etc...
11-16-2010, 01:10 PM
#11
Rennlist Member
Get the Volvo mounts from Roger. I had the Ford mounts. Junk. Have the Volvo mounts now. Life is good.
11-16-2010, 05:21 PM
#12
Nordschleife Master
I too missed out on that 8 page thread
Perhaps we can create a "cliff notes" version of threads and later post on the first page
Im still reading through the original thread to find the lightbulb moment where Volvo gets involved.
I must say, very very good of Roger to go above and beyond on this MM B.S. Cheers!
Perhaps we can create a "cliff notes" version of threads and later post on the first page
Im still reading through the original thread to find the lightbulb moment where Volvo gets involved.
I must say, very very good of Roger to go above and beyond on this MM B.S. Cheers!
