Timing
Is there an article somewhere that has a step by step procedure on how to time these engines (S30)? I just need photo reference alongside technical data (text) so I can rule out what happened here.
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Yep... check your Haynes manual / FSM.
-Hook up timing gun -Loosen dizzy tangs (10mm) -Disconnect vacuum advance line -Start motor -Point timing gun at crank timing marks -Rotate dizzy to desired advance -Shut off motor -Tighten dizzy -Drive happy Hopefully that's not too complicated. :D |
Originally Posted by NismoPick
(Post 287449)
Yep... check your Haynes manual / FSM.
-Hook up timing gun -Loosen dizzy tangs (10mm) -Disconnect vacuum advance line -Start motor -Point timing gun at crank timing marks -Rotate dizzy to desired advance -Shut off motor -Tighten dizzy -Drive happy Hopefully that's not too complicated. :D |
It's in there somewhere but with the timing mark on 0 for #1 the rotor should point to 11 o'clock. The timing should be set at 10 BTDC. Test you vacuum advance with a vacuum pump to make sure it is moving freely.
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Originally Posted by theramz
(Post 287490)
It's in there somewhere but with the timing mark on 0 for #1 the rotor should point to 11 o'clock. The timing should be set at 10 BTDC. Test you vacuum advance with a vacuum pump to make sure it is moving freely.
I'll check the vacuum advance once I get the chance to but seeing as it wouldn't rev up too far over 4-5k I figured something had to be wrong. And if this timing information is in said FSM (I have 240 and 260 FSMs), what article is it under? I've looked in; ~Engine General (also in 260 FSM) ~Engine Mechanical (also in 260 FSM) ~Engine Tune-up (240 only) ~General information (240 only) ~Engine Control (260 only) and just for shits and grins ~Engine Electrical (also in 260 FSM) I've double checked all of those but it's possible I missed something I guess. Some start on the matter of timing but don't carry through. Like Engine Mechanical (If I recall) stated something about installing the oil pump and it's rod but said nothing about how the rotor on the other side should sit. |
At TDC, the rotor should be pointing straight at the front of the car (directly under spark plug port #1 on the rotor)... hence the reason the motor should spark cyl #1 at TDC of cyl #1. :D
The oil pump shaft tang should be at 11 o'clock. A good read: https://www.zdriver.com/forums/showt...&highlight=tdc http://www.geocities.com/inlinestrok...pumpshaft2.jpg And a scan from my 240Z / 260Z Haynes manual: http://img.photobucket.com/albums/v4...ick/timing.jpg |
That's right Nismo! My bad.:102:
Make sure your point gap is correct and the dizzy shaft doesn't have too much side play. |
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