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> 1.8 (now 1911) L-jet timing, more questions after a large search
malcolm2
post Feb 26 2012, 11:22 PM
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I went way back reading stuff about timing marks, etc... My 1.8 fan only has the 7.5* notch. My static timing is all good: with #1 at TDC I get the rotor pointing at the notch in the dizzy case, and the flywheel notch straight up and of course the fan notch is a bit off, 7.5 *.

May not matter, but I have converted this engine to a 1911, with L-jet and a 9550 cam. My timing light does not have the advance, so I should be able to read directly on the 7.5* notch.

But why would there be no instructions to check and set the timing at 3500 RPMs on 1.8 engines?

Should I add a TDC and 27* mark and do it anyway?
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Cap'n Krusty
post Feb 27 2012, 01:08 AM
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QUOTE(malcolm2 @ Feb 26 2012, 09:22 PM) *

I went way back reading stuff about timing marks, etc... My 1.8 fan only has the 7.5* notch. My static timing is all good: with #1 at TDC I get the rotor pointing at the notch in the dizzy case, and the flywheel notch straight up and of course the fan notch is a bit off, 7.5 *.

May not matter, but I have converted this engine to a 1911, with L-jet and a 9550 cam. My timing light does not have the advance, so I should be able to read directly on the 7.5* notch.

But why would there be no instructions to check and set the timing at 3500 RPMs on 1.8 engines?

Should I add a TDC and 27* mark and do it anyway?


There's no mark because 914s with L-jet are timed at 900 RPM, hoses off and plugged.

The Cap'n
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malcolm2
post Feb 27 2012, 08:08 AM
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QUOTE(Cap'n Krusty @ Feb 27 2012, 01:08 AM) *

QUOTE(malcolm2 @ Feb 26 2012, 09:22 PM) *

I went way back reading stuff about timing marks, etc... My 1.8 fan only has the 7.5* notch. My static timing is all good: with #1 at TDC I get the rotor pointing at the notch in the dizzy case, and the flywheel notch straight up and of course the fan notch is a bit off, 7.5 *.

May not matter, but I have converted this engine to a 1911, with L-jet and a 9550 cam. My timing light does not have the advance, so I should be able to read directly on the 7.5* notch.

But why would there be no instructions to check and set the timing at 3500 RPMs on 1.8 engines?

Should I add a TDC and 27* mark and do it anyway?


There's no mark because 914s with L-jet are timed at 900 RPM, hoses off and plugged.

The Cap'n



AND THAT'S IT? I read so many times that "you don't drive at 900 rpm" as justification for checking at 3500. Why is L-Jet different? Just curious.
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