MFI or valves?!!
Well I'm new to this BB I purchased a sweet 1970 911S about four months ago after two years of searching. The car ran great all summer ( BTW checked out fine at the porsche dealer when I purchased it). About one week before I wanted to put the car away for the winter the car started to misfire. I pulled the plugs an they were wet with gas and black. I know this means the fuel system is running rich. I timed the valves as part of my pre winter storage, this is the first time I've done it but I checked the clerances four times and I left the plugs in. The distributor cap looked worn so I decided to order a new cap rotor and points and in the mean time cleaned up the old ones which cured the misfire( I live in central Canada and it takes at least two weeks to get any parts). Now the car is idoling rough and has a backfire I haven't attempted to take it out of the garage yet as I'm concerned about the damage the backfire could cause. Is my MFI system at the issue, I have been working though the "check measure adjust" manual and plan to check the timing of the ignition and fuel pump next. Do I have a problem with my valve adjustment? or as the CMA manual sugests is it with the micro switch, rpm tranducer or stop valve(I've read the other strings but don't fully understand the checking of these items. Sorry for the overload of info. but I want to do this myself I bought the car as a hobby and have a real hard time having to admit defeat and have it towed to the shop.
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1970 911S
[This message has been edited by sessa (edited 10-30-2001).]
[This message has been edited by sessa (edited 10-30-2001).]
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