> > Plugged catalyst > I guess a possibility, though I would expect to also experience loss of power under this condition. I will check it out, though. > HEAVY carbon build up (unlikely) > > Too much advance, BTW, full advance with vacuum is on the order of 40 > degrees btdc, this is ok, as the engine does not see this much advance > under full throttle. That's fine then, it appears that mine is well within the normal advance range.
> > Lean fuel mixture, possibly on just one cylinder, if you have a plugged > injector. FYI, I have seen holes burnt in pistons on turbocharged Nissans > due to plugged injectors. > Possible. None of the spark plugs, however, show evidence of a lean running condition.
> High internal friction, due to damaged pistons, cylinders, etc, usually > accompanied by tremendous oil burning. No excessive oil consumption > > too hot a plug possibly?
I don't think so, but I'm not sure. I'm using the Bosch Super plug, I believe the number is W8CC. This same type of plug has been in the van since I bought it with 99K miles on it. I just replaced them with brand new Bosch Supers. Same plug number. Sean Bartnik Johnson City, Tennessee '81 Vanagon L Westfalia |
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