1999-2009 [Subscribe to Daily Digest] |
Correct spark plug gap is 0.9 mm or 0.035 inch.
Also want to note that it is extremely important to use only NGK BCPR6ES (copper) or NGK PFR6H-10 (platinum) plugs; TG says the copper plugs work better, changed every 15K.
The (colder) "7" heat range spark plug may be better suited if you do lots of high-speed driving... but if you see excessive buildup on the "7" heat range plugs, use the hotter "6". There should be only a very light buildup.
I wonder if the SAAB AC system can ever develop the "high pressure" problem that I once experienced in a Honda?
This is what happened in that car: when the AC compressor would engage, it seemed as if an excessive load was being placed on the engine--the RPM would approach ZERO but the engine somehow clung to life! The compressor would then disengage momentarily, and normal idle speed would resome. But then the compressor would reengage, causing the RPM to drop drastically yet again! It cycled repeatedly. Kinda scary actually, so I left the AC off. Felt like something might get destroyed if I left it on... you could really feel the engine bog down when the compressor kicked in.
Suspecting a seized or about-to-seize AC compressor, I took it to a specialized Sanden shop. (That car used a Sanden AC system) The shop was very familiar with this condition and called it a "high pressure" problem (?). They evacuated the refrigerant, flushed the system, changed the receiver/drier, cleaned the condenser and evaporator, and finally refilled the refrigerant and compressor oil... problem solved, and the AC worked better than new!
I wonder if such a servicing would be beneficial in your case? Or even just a refrigerant evacuation and recharge? Any AC experts around?
Jason
posted by 24.46.48...
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