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RustyWa |
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#1
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Working Member ![]() ![]() ![]() Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 ![]() |
I forgot to take photos of this, but I might in a few days. On my rebuilt dizzy, I noticed that the cam lobe for the FI trigger points was at a different location than what my stock dizzy had it at.
Going from memory, on the stock dizzy, the point on the cam lobe was pretty much lined up to at the #1 spark. On the rebuilt, it was like 30-45 degrees off of this point. I can't remember if it was before or after #1. Anyone ever notice this before? Would it make a difference for the fuel timing? Doesn't the fuel charge just sit in the intake anyways waiting for the valve to open. I'll try to get some photos later on. |
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RustyWa |
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#2
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Working Member ![]() ![]() ![]() Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 ![]() |
I've FINALLY come across some information about the "existence" of different FI injector pulse timings in the 914/4 distributors.
Clymer service manual, 914 1970-1975 page 129, Fuel System "On 1970-1971 models, injectors 1 and 3 inject when the respective intake valve is open, while injectors 2 and 4 inject when the respective intake valve is closed. On 1972 and 1973 models, all injection takes place behind closed intake valves. Fuel is effectively stored in the intake ports of cylinders until the intake valve opens." No mention is given to engine sizes. Interesting stuff. |
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