Quote:
Originally Posted by Mythos
Correct, car shouldn't have a hand throttle. As mentioned in the start chassis is a '71 was converted to full 2.7 '79 SC and then motor to a full '81 SC.(All engines European versiosn)
From what I see the car has the correct CIS components. Maybe the hand throttle thing is a leftover from in between stages? Previous owner mentioned something about removing cruise and/or the cold start enrichment thing(or something like that) because some time in race conditions could malfunction or interfere with the throttle...does this make any sense? (I think I've read about that issue before here as well...)
Problem is I can never be completely sure about what the previous owner has done. Although engine is mostly stock and all the modifications are...towards the correct direction! Either simplifying or making stuff more reliable for hard use.
I have no experience with early 911s and there is limited number of early cars here(in Greece) and even more limited good Porsche mechanics/shops.
Haven't checked spark thoroughly yet(car is stock no Permatune or MSD) -but doesn't sound like it- will do since I'm running out of things I can check by myself. If someone can think of something I'm missing...
*I'm really getting frustrated with the whole CIS thing and want to ditch everything and put a basic EFI solution in...
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Mythos,
2.7 liter engines are not SC engines. SC's have 3.0 liter motors. So far you have not done any diagnostic test to determine the root cause/s of your problem/s except replacing parts after parts. Why did you replace the fuel accumulator? Was it defective? Have you checked your fuel pressures? Have you confirmed that your motor does not have significant vacuum leak? These are some of the steps you have to be proactive if you want your CIS engine run good. Switching to EFI is not a solution to your predicament and a decision you have to make.
Look for someone who knows about CIS and start from there. Your frustration about CIS is due to your lack of understanding how the system works. It is a very reliable and dependable system if you understand the basic principle behind CIS. Actually it is maintenance free if you keep the fuel pressures within spec and free of vacuum leak. My '79 SC has not been to a shop for more than 20 years except for emission sticker. The last time it was in a shop was for full body paint and has been running since then.
Tony