Mark checking manifld vacuum would be a good idea and setting the CO with an exhaust gas analyzer would be a big help have you checked the compression also what have you done to the engine before this problem started. its a hydraulic lifter engine and the lifters are known not to let the valves close when the engine is hot see the hydraulic lifter article on my web site http://www.bostonengine.com Bob Donalds mark wrote A question for all of you who know a bit more about the type IV motor than I. our 82 Westy starts and idles, but not that well. At idle it surges on about a 1 to 2 second schedule, meaning it idles at about 850-900 for 1 to 2 seconds and then is slowed for about 1/2 second. Also, it is generally down on power when driving, almost the same as when it was only running on three cylinders, but all four have gas and spark. This is not a miss, nor does it appear to be a vacuum leak that I can find. Any ideas?
Mark 82 Westy |
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