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^^^Before people get keyboard happy they should realize they know nothing about the person they are calling out. My #'s are fairly accurate and like very few on this Forum, I have experienced engine issues via ownership of these models since my 356 days. Not being a mechanic, I've spent my share of hard earned money on expensive repairs
Here's a small selection from over the years:
@groovzilla Nice collection throughout the years. All of them could fetch some serious cash in today's market. Very interesting to hear you say that your 997 is favorite out of the bunch. Even though Air cooled 911's prices are ridiculous now, I would still want to find and build one.
Wrong again Vern1 - I know my stats because I've lived them. The % of failures in Porsche engines has always existed and my numbers are accurate
You're lucky your 993 engine didn't clog - Huge % did and 2 of 993 engines clogged out of the 4 I owned - Fortunately both were 1995 OB1 Emissions and I was still able to pass the test. - 1996 and later won't pass emissions when clogged.
Havent been wrong yet (Im never wrong btw ask my wife)
"i know my stats because i have lived them"????? That makes no sense. I know there have been no top end rebuilds in 993's because i have lived it!!
If you have real/verifiable stats then i would be happy to see them. Otherwise, as i said its meaningless
Havent been wrong yet (Im never wrong btw ask my wife)
"i know my stats because i have lived them"????? That makes no sense. I know there have been no top end rebuilds in 993's because i have lived it!!
If you have real/verifiable stats then i would be happy to see them. Otherwise, as i said its meaningless
Vern if you've spent any time on the RL 993 Forum you know damn well all the issues with the clogged air passages in the 993 heads.
Every Porsche model engine has had issues from the very beginning and the % were much higher years ago - I used to keep a diesel diaper under my 964 engine/on top of engine tray due to the huge oil leaks from engine designed with no case seal
Do some research then you can come back and start barking at me again:
OK so its clear now you have no reputable facts but rather just a bunch of threads on issues where you have come up with your own "facts". Well done mr trump
Of course i know there were SAI issues with 993's but i dont make up "facts" that say it affected 80% of 993's
You just dont get it and why did i bother wasting my time asking
Vern, if you don't keep the politics out of your posts, I'm going to withdraw from your ticket and run as a third party disruptor. I'm younger and prettier than you and I'll get enough votes to keep the incumbent in office.
On the flip side, facts are hard to take without any type of citation.
Assuming a 1% failure rate on 996 engines and/or 997.1 engines, the fact remains that 1% of them having catastrophic engine failure (let's assume that number is accurate for the sake of argument) in less than 100k miles is still a terrible level of failure--and one that any owner should be aware of and educate himself on.
If we assume that previous Porshe engines had worse failure rates, that doesn't make a 1% failure rate any more palatable. If 1% of Hyundai Sonatas or Honda Accords or Chevy trucks had engines that grenaded with low miles and for no reason, most people would think twice about buying one.
OK so its clear now you have no reputable facts but rather just a bunch of threads on issues where you have come up with your own "facts". Well done mr trump
Of course i know there were SAI issues with 993's but i dont make up "facts" that say it affected 80% of 993's
You just dont get it and why did i bother wasting my time asking
Hey Vern1, Since you are a Jake Raby "follower" why don't you click your way over to the Bore Scoring thread. Jake Raby just confirmed that he believes 100% of all 993 engines will have secondary air passage clogging - He also confirms my early 911, 964 claims So you're correct----> I was wrong my 993 estimates were way too low at 60% He claims 100% Ut oh, better save some cash for the top end rebuild coming up soon
^^^Before people get keyboard happy they should realize they know nothing about the person they are calling out. My #'s are fairly accurate and like very few on this Forum, I have experienced engine issues via ownership of these models since my 356 days. Not being a mechanic, I've spent my share of hard earned money on expensive repairs
Here's a small selection from over the years:
I know plenty about you after seeing you post for years. You own your cars for about 20 minutes before selling them so some random photos of cars in your driveways means nothing.
Your personal anecdotes about what happens to each car mean nothing. For instance, show me some evidence that 80% of all 993s need valve guides replaced? Since you admit your mechanical attributes are limited, you probably have no clue about what the underlying issues actually stem from. So you do some forum reading, own a car for about a week, and then think you are an expert on the entire production run. go sell that to someone whose buying.
I know plenty about you after seeing you post for years. You own your cars for about 20 minutes before selling them so some random photos of cars in your driveways means nothing.
Your personal anecdotes about what happens to each car mean nothing. For instance, show me some evidence that 80% of all 993s need valve guides replaced? Since you admit your mechanical attributes are limited, you probably have no clue about what the underlying issues actually stem from. So you do some forum reading, own a car for about a week, and then think you are an expert on the entire production run. go sell that to someone whose buying.
I have owned Porsche's for long long time - Earlier models I kept for years, water cooled not so much - Big deal
-----> If you could grasp the simple task of reading correctly, you would know that I stated: 60% of 993 secondary air passages in head clog from carbon - I never said the 993 valve guides have issues But, the later model 1984-1986 911 Carrera engines had the worn valve guide problem
**Jake Raby believes 100% of 993 secondary air passages will clog---> Just click you way over to the Bore Scoring thread I started and go to the last page
Last edited by groovzilla; 04-10-2019 at 06:27 PM.
I know plenty about you after seeing you post for years. You own your cars for about 20 minutes before selling them so some random photos of cars in your driveways means nothing.
Your personal anecdotes about what happens to each car mean nothing. For instance, show me some evidence that 80% of all 993s need valve guides replaced? Since you admit your mechanical attributes are limited, you probably have no clue about what the underlying issues actually stem from. So you do some forum reading, own a car for about a week, and then think you are an expert on the entire production run. go sell that to someone whose buying.
This is for you and your buddy/follower/drama queen Vern1 **Jakes comments on my engine failure questions:
Quote:Why don't you just take a minute and look over the below examples ---> are you telling me you won't agree that the Bore scoring % at 5% of all 997.1 engines is much less significant than these past failures and never gained nearly the hype and drama of current Bore Scoring drama found in only 5% of all 997.1's?:
I never get caught up on percentages. Why? Because there's too many variables to the equation for them to ever be close to accurate. All I know is with my focus on quality Vs quantity, that we can never see the engines from 1/2 of 1% of the M96/M97 powered Porsches pass through these doors. I don't want to increase capability any further, and the volume Vs quality has been at the perfect sweet spot for the last decade. That's truly the only percentage I even consider. We keep up with a failure log, and submission tickets that we receive. 75% of those reports and inquiries never turn into a job for us, and that's fine. We still gather the data we can.
Now, at the end of the day what we really do NEED is for the values of these cars to be maintained. We need this more than the owners do, because vehicles that lose value are much less considered for an engine like mine, and thats why only the people who love the car, or intend to keep it forever join the program. So, the facts that I share actually goes against my own program. I share these, because they are facts.
Quote:1. 1975-1977 & 1978-1983 911sc head stud & chain tensioner failure - Has to be 60%----> 911sc Transmission syncro failure - This syncro failure rate is 100% - 10 of my 12 early 911 and 911sc's had broken head studs and all of my 911sc's had grinding 1st gear syncro's
Remember, I cut my teeth on these cars. When I was a kid working on this stuff, I got all the crap jobs on these cars, because no one else wanted to work on them. The same went for the 914, and their dropped valve seats, toasted #3 cylinders, and crappy shifting. The 75-77 cars were horrible, and today the only Porsche I own from that era is my 76' 912E, that I have had for 25 years.
Quote:2. 1989-1992 964 engine oil leaks due to no engine seals - Has to be 90% - 2 of my 964's had huge oil leaks and I used diesel diapers wedged between engine and engine tray to absorb them until I had engines rebuilt
Absolutely. My 1989 964 had 17 oil leaks when I bought it. Thats why I was able to buy it, because no one wanted to fix it. The case through bolts, cylinder heads, and cam tower bridges (plastic) suck to repair. I have done many 10,000.00 engine reseal jobs on these cars, and still do today.
Quote:3. 993 Clogged secondary air passages - 60%? - 2 of my 4 993's had clogged passages - it was a huge issue on 993 Forum for years I just built the engine (3.9L now) in my 993 a few months ago.I believe that 100% of 993s will have clogged secondary air ports, especially if they are ran with the oil level filled to the very top, serviced often, and aren't driven as they should be.
I work with Porsche engines from 1950- present day. None of them are perfect, and some have bigger issues than the others.
The only guarantee with any engine is:
-It will wear out
-If it doesn't blow up first.__________________
Flat 6 Innovations
Inventor of the IMS Solution:
US Patents 8,992,089, 9,416,697 & 9,909,469
Inventor of the Single Row Pro IMS Retrofit, and Faultless Tool with method of installation:
US Patent 9,687,974
Sorry OP.... off topic. just adding a funny bit to Groovzilla's rant... Read this on a good ol' boys 993 forum. Sounds like some funny chaps from the other side of the pond talking about 993 drama... funny in light of a lot of our forum discussion lately.
"Ok. So I am reading this forum and know all the horror stories about 996 engines going bang. But then I read that the same is happening to 997s. One guy on here has posted that he has had two go bang - So I am sat here all smug looking at Helga, my 993 (big buxom german serving wench with two steins of beer on a tray and golden pony tails - you get the picture) sat in the garage. Should I be so smug?"
"Not really my 993 needed 2 rebuilds.Not my favourite car!"
"I know of one 993RS comfort spec that needed a new engine after 6 months. Another 993 that was a three year old car with 28K on the clock and had completely knackered valve guides. My own 3.2 with 68K on the clock when the engine was stripped needed knew valve guides, piston rings worn to 1.7mm 1.0mm is the max and the oil pump had a tight spot in it. Yes generally speaking they have shown to be more reliable than the kettles but production methods, build numbers and horsepower have a lot to do with it as well."
"Mine went bang, 15 grand rebuild, OUCH !"
"Mate had a guards red rs that went bang. 15k later it was ready to drive again."
"No difference in the rate of catastrophic failures for 993, 996 and 997, if we are to believe some of the posts on here. The higher reported incidents with the latter cars are purely due to the greater number of cars on the road and the users of the later cars are more able and likely to post it on the net. Also, 993 will cost you best part of £15k when the engine goes pop, whereas, one of the later cars can have the engine replaced for considerably less. In actual fact 993 owners are more likely to suffer a catastrophic engine failure and when it does it is likely to be more expensive. Anything contrary to the above is just hearsay and misinformation."
"In fact 993 engine failures are not reported on the interweb because us beardy 993 types haven't got the hang of posting. pp"
"My 993 needed a rebuild at just over 60k (with previous owner)."
"Whilst internet forums such as this may serve to perpetuate these issues, there's VERY rarely smoke without fire . . . .
And whilst every 993 engine it not doomed to fail, they will often leak oil and wear out valve stems/seals etc etc etc.
They're not the engineering panacea the motoring press (or Porsche AG) make/made them out to be."
"....still know what engine I would prefer....whatever the doomsday folk may bang on about....."......."Me too and its not a 993!"
"But 993 owners can't use the internet, so you can't use stuff posted on forums either. ;^) "
"Me to. Well, other than a 993 engine which popped a rod through the crankcase as I turned into McLeans. To be fair it made it back to the pits under it's own steam so you can't grumble."
"The 993 NA (vario or non vario) is known to throw cranks and rods.."
^^^qilqbn - No use trying to educate the "followers" like Vern1 and Quadcammer - They know it all even when Jake Raby agrees with me and puts the 993 failure % even higher at 100%
Lets see if they come back for more schooling
First off, I want to say Thank you Very Much to HenryPCar for taking the time to document his work, and verify the reliability of his 9A1 motor, AND for helping to add confidence to the community about the reliability and excellence of these cars and motors.
Second, having driven a 997.1 Carrera S past the 100K mile mark with zero engine problems from bore scoring or IMS issue, I too can add my confidence in those M97 motors as well. Heck, if you're worried about it, change the IMS bearing and go enjoy the drive.
Third, my current 997.2 Carrera S has been outstanding. The 9A1 motor is so well designed and build, that all I can say is that its is excellent.
Fourth, please ignore the posts above made by those who just want to hijack this valuable thread.
The fact that these cars and motors perform on track with the likes of Ferrari's, Lambo's etc (low use track/show cars), yet can be used in all climates and conditions as daily drivers for many many miles and years, is the true proof that the design of these motors and cars is far above "normal" cars. I am thrilled to have the opportunity to daily drive my 997's, and appreciate HenryPCar for adding my confidence in them. Well Done!
Thanks anewman. As the intent of my thread was to prove the reliability of the 997.2, but due to the number of negative responses, it is obvious that you and I are in the minority here. This thread now spans over 4 pages and apart from yours there are hardly any responses on the original content of my posting. Makes me wonder do people really enjoy driving their Porsche, or more keen in joining the "ME TOO" movement.
04-10-2019, 03:19 PM
He claims 100%
So I am sat here all smug looking at Helga, my 993 (big buxom german serving wench with two steins of beer on a tray and golden pony tails - you get the picture) sat in the garage. Should I be so smug?"
pp"
