986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Hello people, Im a noob, I just bought a 98 Porsche Boxster but have problems : (

texomawaves · 04-07-2010, 04:58 AM

Definitely agree on that Paul.

Looking at the comp #'s i'd say it's a tired motor. The 150 cyl is more than 10% less than the 170 cyl... just an old rule of thumb. Better readings could be taken if the motor was warmed up, and whether or not a shot of oil was injected to see if the numbers pumped up or not (ring vs. valve issue). Not sure if all that was done in this case. If this was my engine, I would rebuild it or replace it with a bigger 3.2

04-07-2010, 04:58 AM	#24
texomawaves Registered User Join Date: Sep 2009 Location: Tx Posts: 259	Definitely agree on that Paul. Looking at the comp #'s i'd say it's a tired motor. The 150 cyl is more than 10% less than the 170 cyl... just an old rule of thumb. Better readings could be taken if the motor was warmed up, and whether or not a shot of oil was injected to see if the numbers pumped up or not (ring vs. valve issue). Not sure if all that was done in this case. If this was my engine, I would rebuild it or replace it with a bigger 3.2 __________________ Chris Dennis, Plano, Texas '07 Boxster, arctic silver, Tiptronic, 106k miles, no mods ‘13 Boxster S, black on black, PDK, 27k miles, garage queen ‘66 Mooney M20E, hangar queen