The W116 LibraryThe definitive W116 resource!
Started by ramiro, 26 July 2022, 10:20 AM
Quote from: ramiro on 26 July 2022, 10:20 AMHello,Is a 6.9 supposed to run over 100C when you drive it over 180 KMH for a while when the outside temperature is around 30C ?I changed the Thermostat, Water pump , flushed the System multiple Times and recored the Radiator 2 times (1. standart core , 2.Perfomance core) but it didn't change anything .Yesterday we had 35 and the Temp was always a little below 100C while drive slower then 120KM with air condition on.The Radiator also had 100 C and ~ 85 on the Outlet so the coolant is flowing.Today i checked the Headgasket with a cheap tester that changes color and it changes from blue to green , but i don't have any cooland loss , white smoke , or water in the oil.Should a 6.9 under all cirumstances run below 100C ?As is see everything speaks for a broken headgasket but i don't want to tear the engine apart and find out it wasn't the headgasket.Greeting from germanyRamiro
Quote from: rumb on 26 July 2022, 01:17 PMDont forget the fan clutch. Remember that it is specific to the 6.9.I assume the electric fan is working correctly. A quick hack to to add a 1.4K ohm resistor to the temp sensor to make the fan turn on sooner.
Quote from: ramiro on 27 July 2022, 08:10 AMI used this kit https://www.ebay.com/itm/175187507731 .
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