IMS & bore scoring = scared newbie
The following users liked this post:
tegraphile (08-06-2020)
01-15-2017, 08:31 PM
#18
01-15-2017, 09:44 PM
#19
Racer
Join Date: Oct 2015
Location: South Korea
Posts: 290
Likes: 0
Received 0 Likes
on
0 Posts
Think the bore scoring is sufficiently documented in all forums on the net.
My stance on bore scoring is that it is part of the 997.1 engine design, sufficiently documented, which can lead to catastrophic engine failure if you are the unlucky person. It cost you 20K or more so that is the certainty in the equitation.
If you want to have more peace of mind, open up the wallet and buy a 997.2 which has no IMS and a nihil bore scoring failure rate.
This is the theory, the practice is driving the car and enjoy. Keep 20K on the bank and you are bullet proof.
My stance on bore scoring is that it is part of the 997.1 engine design, sufficiently documented, which can lead to catastrophic engine failure if you are the unlucky person. It cost you 20K or more so that is the certainty in the equitation.
If you want to have more peace of mind, open up the wallet and buy a 997.2 which has no IMS and a nihil bore scoring failure rate.
This is the theory, the practice is driving the car and enjoy. Keep 20K on the bank and you are bullet proof.
01-15-2017, 10:38 PM
#21
Drifting
[QUOTE=Rikky001;13885782]
If you want to have more peace of mind, open up the wallet and buy a 997.2 which has no IMS and a nihil bore scoring failure rate.
QUOTE]
No IMS but I wish the 2nd part was true. There have been several recent cases of scoring with .2's
If you want to have more peace of mind, open up the wallet and buy a 997.2 which has no IMS and a nihil bore scoring failure rate.
QUOTE]
No IMS but I wish the 2nd part was true. There have been several recent cases of scoring with .2's
01-15-2017, 11:01 PM
#22
Mgibilisco... I have the same car you do. Got it for such a good price that I can pay for a rebuild and still be right-side-up. That was how I justified buying it. Then I did some deep research (I'm a mechanical engineer) and no longer think the scoring is inevitable or random. There's a clear link to cause and effect and Hartech documents it in their article (I have no Hartech affiliation). I know the article is long and technical, but if you read it and maintain accordingly, you can drive with peace of mind.
01-15-2017, 11:31 PM
#23
Three Wheelin'
It's just the luck of the draw.
Just drive the car, maintain it well, and leave the boogie man in the closet.
01-15-2017, 11:47 PM
#24
To answer a few of the "why didn't you search?" Silly newbie, don't waste our forum space type of responses...
My reading of this forum seems to indicate that bore scoring instances are increasing in these cars as they age. This is just my opinion, and i thought perhaps others may have the same concerns and would like to chime in.
For those that have a problem with the posting, simply ignore it.
This is supposed to be a an enthusiast forum and place for Q&A and mutual love of these cars, not a place to chastise.
In the future, I'll stick to quality questions such as "Should I install Lambo doors"
My reading of this forum seems to indicate that bore scoring instances are increasing in these cars as they age. This is just my opinion, and i thought perhaps others may have the same concerns and would like to chime in.
For those that have a problem with the posting, simply ignore it.
This is supposed to be a an enthusiast forum and place for Q&A and mutual love of these cars, not a place to chastise.
In the future, I'll stick to quality questions such as "Should I install Lambo doors"
As to those responses which tell you to just change the oil and you will not have to be concerned: just not true. Sorry mate. Buy a 997.1 and make sure you bank acct can cover the motor replacement. The borescope is your friend.
Good luck
01-16-2017, 12:31 AM
#25
I wouldn't hesitate to do a bore scope on #3 and #6. Both are very accessible. Cheap bore scopes available on amazon make this a simple job that can be done in under 30 minutes. Otherwise have an indie do it for you. Knowing the condition will help rest easier or decide on next course of action if scoring is present. Flying blind otherwise.
I look at the possibility of rebuilding as a positive thing. I purchased my car very well and factored in a possible rebuild down the line. Part of the fun...
I look at the possibility of rebuilding as a positive thing. I purchased my car very well and factored in a possible rebuild down the line. Part of the fun...
First time 997 owner, but have owned many P cars prior.
Sooo, I bought my '06 997 C4S in July w/91k miles on it and have driven it about 8-900 miles since purchasing it. The car is great, and serves as a second car/weekend cruiser. My issue, is that I've been reading this forum and scaring the HECK out of myself.
With the car being an '06, I've kind of gotten past the IMS scare in my mind and just planned to shell out for the LNE replacement for piece of mind, but now I've been reading these bore scoring horror stories.
Are these .1 cars bad news? It doesn't seem like bore scoring can necessarily be prevented? Gambling with a 20k ish engine rebuild seems dumb.
Dump it? Trade it? It's in winter storage currently, and I'm not sure what to do when it comes out.
Thoughts?
Sooo, I bought my '06 997 C4S in July w/91k miles on it and have driven it about 8-900 miles since purchasing it. The car is great, and serves as a second car/weekend cruiser. My issue, is that I've been reading this forum and scaring the HECK out of myself.
With the car being an '06, I've kind of gotten past the IMS scare in my mind and just planned to shell out for the LNE replacement for piece of mind, but now I've been reading these bore scoring horror stories.
Are these .1 cars bad news? It doesn't seem like bore scoring can necessarily be prevented? Gambling with a 20k ish engine rebuild seems dumb.
Dump it? Trade it? It's in winter storage currently, and I'm not sure what to do when it comes out.
Thoughts?
01-16-2017, 12:44 AM
#26
Want to really scare the noobs? I bet most don't know they bought a 911 without a mechanical locking diff... this especially goes for GTS owners rofl....
Porsche it's all about the options
Porsche it's all about the options
01-16-2017, 01:24 PM
#27
Drifting
I wouldn't hesitate to do a bore scope on #3 and #6. Both are very accessible. Cheap bore scopes available on amazon make this a simple job that can be done in under 30 minutes. Otherwise have an indie do it for you. Knowing the condition will help rest easier or decide on next course of action if scoring is present. Flying blind otherwise.
I look at the possibility of rebuilding as a positive thing. I purchased my car very well and factored in a possible rebuild down the line. Part of the fun...
I look at the possibility of rebuilding as a positive thing. I purchased my car very well and factored in a possible rebuild down the line. Part of the fun...
And my rebuild was fun......after it was paid for and I got the car back
01-16-2017, 02:22 PM
#28
Instructor
Thread Starter
Must admit, after reading about the Nickies 4.0 rebuild I was kinda psyched! Except for the whole paying for it part...
Oh well, hopefully that will be a ways down the road..hopefully.
Oh well, hopefully that will be a ways down the road..hopefully.
The following users liked this post:
IrishLegend (08-03-2020)
01-16-2017, 02:48 PM
#29
Instructor
Join Date: Jul 2009
Location: Northeast USA
Posts: 179
Likes: 0
Received 0 Likes
on
0 Posts
When I bought my 997.1 new I discovered this forum because I like a little community. It immediately scared me and made me regret the purchase. What did I do? Stopped coming to the forum. Came back about 6 years later once I started thinking about mods. So far the car has been flawless, 8 years and 50k miles. If it breaks at this point I feel like I've gotten my money's worth and I'll happily spend $20k to get a better engine.
FYI ALL Porsches have bore scoring issues. Go read Panamera and Cayenne forums.
FYI ALL Porsches have bore scoring issues. Go read Panamera and Cayenne forums.
01-16-2017, 05:02 PM
#30
Yeah, that #4 is tough. Odd it was the one to go on yours given all the evidence of #6,5 going first.
BTW, Id love an update on how great that 4.0 is treating you. Give us frozen tundra folks something nice to feed on...
Also I'd love to have one of the rebuilder's answer the question of just "how good" is a rebuilt M/96 & M/97 engine after it's had the "full meal deal" from someone like Flat 6 or Hartech? Can it be compared to the revered Metzger as far as reliability and longevity? Sure would be nice to know if the value proposition is intact on the full rebuild.
I'm deep into research mode on my rebuild and may end up putting it off until the signs are beginning to pile up. As it stands I have visual evidence but not using oil or smoking out the back or odd ticking sounds.
BTW, Id love an update on how great that 4.0 is treating you. Give us frozen tundra folks something nice to feed on...
Also I'd love to have one of the rebuilder's answer the question of just "how good" is a rebuilt M/96 & M/97 engine after it's had the "full meal deal" from someone like Flat 6 or Hartech? Can it be compared to the revered Metzger as far as reliability and longevity? Sure would be nice to know if the value proposition is intact on the full rebuild.
I'm deep into research mode on my rebuild and may end up putting it off until the signs are beginning to pile up. As it stands I have visual evidence but not using oil or smoking out the back or odd ticking sounds.
