On Tue, 9 Sep 1997, Lon Herman wrote: > Amy 81 Westie came without a catalytic converter, and the requisite exhaust > components to tie the egr tube from the intake manifold to the exhaust pipe. > So the way it is set up, the egr intake hangs down around the muffler, > feeding unfiltered air to the intake manifold at all times. Attempts to > "adjust" the egr throttle attachment haven't made any difference re: the > always available suction I feel from the end of the open pipe, at idle, and > increasing with throttle opening. > > Otherwise, the engine seems to be running well, plugs look very good when I > pull them after 10K or so for inspection, etc. > > Questions: > 1) should I just leave the set up as it is for now, with the egr intake > open?(it has been running this way for at least 30K, with no apparent ill > effects. I'd say NO. At the very least you're getting an unfiltered air leak. > 2) should I just block it off? I'd say AT A MINIMUM do that. > 3) if (2) what effects will it have (if any?) If you feel suction at all times at the open end, yet the car seems to run OK (i.e., not too lean) then I would think that closing up the intake might expose a too-rich condition, since you'll be closing off a source of unmetered air.
--------------------------------------------------------------------- Tom Young young@sherlock.SIMS.Berkeley.EDU Lafayette, CA 94549 '81 Vanagon --------------------------------------------------------------------- |
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