When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
.I installed new thermostat when I did the top end two months ago and I thought my engine was running a little hot. Just below the third line form the bottom It never overheated but I only drove it 10 miles at a time.. Then I started to lose antifreeze , I could not find a leak nothing driping anywhere, then finally I noticed antifreeze poring out the overflow tube on the reservour tank.. I tested the cap it was bad bought a new 16 lb cap. Autozone and same thing I felt the lower hose on the rad it was cold ,so I removed the thermostat and tested it opened under extream heat only,. I gutted the thermostat and reinstalled basically I am running Thermostat delete right now. engine runs at the first bar about one !/4 up the gauge.. I will order new thermostat from Roger tomorrow,, I just bought the set of Porken chips for my 85 5 speed , From Ken , But that is another project I have to now find the other parts( s4 fuel regs x pipe ect) to make the transition into street monster..
Mark you really need the thermo stat to close the recirculation port......928s can not run without one !! the coolant partially just recirculates and never sees the radiator.
What is extreme heat mean? The thermostat only opens when the coolant is pretty hot. The cause just below the 3rd line is not too hot. When you replaced the thermostat, did you change the rear seal in the block?
Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million
Slideshow: Talos Vehicles has transformed the Porsche 911 GT3 RS into a carbon-bodied, race-inspired machine that costs well over $1 million before the donor car is even included.
9 Vehicles Porsche Helped Engineer that Aren't Porsches
Slideshow: Long before engineering consulting became trendy, Porsche was quietly helping other automakers build everything from supercars to economy hatchbacks.
9 Features and Characteristics That Only Porsche People Understand
Slideshow: Some brands build cars. Porsche builds traditions, obsessions, and a few habits that stopped making sense decades ago but somehow became part of the charm.
This Builder Is Turning Heads With Its Slantnose 911 Creation
Slideshow: A small Polish tuner has reimagined the Porsche 911 Slantnose for the modern era, blending 1980s nostalgia with widebody tuning culture and serious performance upgrades.
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture
Slideshow: Porsche has created a Japan-only 911 GT3 Artisan Edition that blends track-ready hardware with design cues inspired by traditional Japanese craftsmanship.
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look
Slideshow: Porsche's latest electric Cayenne Coupe blends dramatic styling with supercar acceleration, turning the brand's midsize SUV into a 1,139-horsepower flagship.