Head gasket coolant mod?
03-10-2019, 10:58 PM
#31
Nordschleife Master
I bought my 85-1/2 new. I owned it 6 months driving around Houston, nothing more than spirited driving occasionally, got to replace the head gasket for the first time. When Porsche replaced it for the 3rd time in 2 years, I was a little upset with the HG failures. This is when they told me that the 944 2.5 liter really did not like real hot climates and had difficulty in maintaining a uniform temperature in the block. This was a bare bones stock NA engine. So no they did not know what they were doing.
03-11-2019, 11:46 AM
#32
Rainman
Rennlist Member
Rennlist Member
i DD'd my 944 for 5 years in Inland SoCal where it's 90+ degrees from about April-November, and regularly cracks 100-110F in July-September.
Never had any HG issues and I wailed on the thing, with AC too (adding more load to the coolant system).
I think the system is fine, repeat HG failures are just as likely due to improper service techniques.
Never had any HG issues and I wailed on the thing, with AC too (adding more load to the coolant system).
I think the system is fine, repeat HG failures are just as likely due to improper service techniques.