Notices
Cayenne 955-957 2003-2010 1st Generation
Sponsored by:
Sponsored by:

Cayenne Engine - Valve impact on piston

Thread Tools
 
Search this Thread
 
Old Jul 27, 2010 | 10:53 AM
  #1  
AussiePorsche's Avatar
AussiePorsche
Thread Starter
Rennlist Member
 
Joined: Jul 2010
Posts: 2
Likes: 0
Question Cayenne Engine - Valve impact on piston

Hi from Perth Australia, I have a MY06 Cayenne S V8 which at 42k miles which has lost its coolant (suspect plastic pipes) but it also has had a heavy valve impact on piston number 3 (bore scope checked) in addition compression is down on number 8 cylinder. The codes identified multiple misfiring and camshaft coolant temp in excess of 142 degrees. My customer says the coolant warning light came on and he drove a short distance then the engine stopped thats it. The engine turns over with ease by hand and starter. No one has rebuilt a Cayenne engine in Australia yet with the chosen option a new engine. Can someone please advise if they have seen this outcome before? also If the cylinders are not scored is it feasible to rebuild the cylinder heads? are parts available?
Porsches reponse is to just pay for a new motor but if the cylinders are ok at this milage I would like to rebuild. Your thoughts and comments please
Reply




All times are GMT -3. The time now is 04:29 AM.

story-0
Theon Goes Full Carbon Fiber With Stunning New Build

Slideshow: Built around a carbon-bodied 964 and a naturally aspirated 4.0-liter flat-six, this bespoke commission highlights how far the restomod formula has evolved.

By Verdad Gallardo | 2026-06-06 14:41:46


VIEW MORE
story-1
Six Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile

Slideshow: Six genius gifts that'll make any Dad smile.

By Joe Kucinski | 2026-06-04 04:58:13


VIEW MORE
story-2
10 Used Porsches Are Selling for Way Too Cheap

Slideshow: These 10 used Porsches offer more driving thrills than their price would suggest.

By Joe Kucinski | 2026-06-03 09:11:13


VIEW MORE
story-3
Tuner Is Converting Porsche 911s Into Shooting Brakes

Slideshow: A Polish Porsche specialist is moving ahead with one of the most unusual 911 conversions in recent memory: a shooting brake version of the 991-generation sports car.

By Verdad Gallardo | 2026-06-01 19:46:47


VIEW MORE
story-4
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917

Slideshow: A Porsche Carrera GT has been transformed into a one-off coachbuilt machine that blends analog supercar engineering with styling inspired by the legendary 917 race cars.

By Verdad Gallardo | 2026-06-01 17:06:04


VIEW MORE
story-5
Is This Convertible Cayenne A Steal, Or A Returnless Investment?

Slideshow: A heavily modified Porsche Cayenne convertible with faux wood trim and a long list of flaws recently sold at auction for surprisingly little money.

By Verdad Gallardo | 2026-05-29 18:52:37


VIEW MORE
story-6
10 Best Non-Flat Six Porsches You Can Buy For Under $100K

Slideshow: If you have $100K to spend on a Porsche but want something a little different, these are the 10 best non-flat six Porsches you can buy.

By Joe Kucinski | 2026-05-28 15:36:11


VIEW MORE
story-7
Porsche's Top 5 Most Questionable Naming Decisions

Slideshow: For a company obsessed with engineering precision, Porsche has occasionally named its cars in ways that left even loyal enthusiasts scratching their heads.

By Verdad Gallardo | 2026-05-27 18:43:48


VIEW MORE
story-8
Pogea Racing's 964 Porsche 911 Reimagination Stands Out in a Crowded Field

Slideshow: Pogea Racing's latest Porsche 964 project blends carbon-fiber construction, modern chassis upgrades, and up to 500 horsepower while keeping the air-cooled 911 experience firmly analog.

By Verdad Gallardo | 2026-05-23 10:34:27


VIEW MORE
story-9
6 Convertible Top MYTHS Most People Don't Understand!

Slideshow: dispelling common convertible top myths

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE