Date: 18 Oct 2001 05:09:15 -0700 From: johngnopsaml-romtec.com (John G) Subject: Re: 9000 Direct Ignition Cartridge
"Grunff" <runffnopsamo.co.uk> wrote in message news:<Z2jz7.14660$T05.1713800nopsam2-win.server.ntlworld.com>... > "John G" <johngnopsaml-romtec.com> wrote in message > news:2acc5702.0110170418.100753efnopsaming.google.com... > > I just thought I'd jot down my experience of my new Saab 9000 CDE 2.3 > > (1992). Not long after I bought the car it started to hesitate at low > > revs and low load. You could knock it down a gear and it would > > happily drive round above 2000rpm. As described by others the problem > > has slowly got worse and I have now bought a new (second-hand) DI > > cartridge from www.parts-asap.co.uk (for those in the UK). > > > > Having spoken to Parts ASAP, apparently the problem with these units > > is that each coil is oil filled for cooling and when the seal goes and > > the oil leak out, so does its ability to cool and the coils start to > > loose performance. I guess an oil leak around the spark plugs is a > > good indicator of this problem. > > > > Hope this helps. > > > > Regards > > > > John > > Yup, DI cassettes are a very common failure. Glad you fixed your problem. > > The oil isn't there for cooling, it's there for electrical insulation. In > fact, if you cut open an old-fashioned ignition coil, you'll find that > they're also oil filled, for the same reason. > > > Grunff That's interesting, Grunff. The oil insulation would make more sense, thanks. JohnG