 Engine timing question need advice |
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| LCOX |
 Oct 20 2015, 07:14 PM
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#1
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Member  Group: Members Posts: 93 Joined: 19-December 09 From: Pinnacle Member No.: 11,148 Region Association: None  |
I may have to post several pictures to make this question more clear. 1974 2.0 engine out of car trans disconnected from the engine flywheel still installed.
- here is the problem. Adjusting the valves and have number 1 at top dead center. There is a notch in the flywheel that will line up with the engine case seam at the top back side of the engine case when the engine is at TDC for #1 cylinder. - the problem is when this notch is lined up the 0 mark on the cooling fan is not lined up with the v shaped cut out groove in the fan housing. Actually it is about 2 fan blades off from where it should be. I know I have the correct 2.0 fan with the 27.5 degree BTDC mark and the 0 notch as well.It appears that the fan is off about 2 blades advanced too much. Is it possible the camshaft gear and crankshaft gear are out of alignment a couple teeth? |
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| TheCabinetmaker |
Oct 20 2015, 07:49 PM
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#2
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I drive my car everyday Group: Members Posts: 8,304 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
You have adjusted valves at tdc by the flywheel notch. That really has nothing to do with the timing marks on the fan. Timing will change with dwell and position of the distributor. Manual and vacuum advance play into the equation too. Not to mention whether the distributor vacuum lines are are disconnected and plugged when checking. Every thing has to work together.
More likely than cam and crank not being aligned (the engine would very shortly implode in this scenario), is the distributor drive gear being a notch off. Then the rotor would not align with the notch on the distributor at tdc#1 |
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Posts in this topic
LCOX Engine timing question need advice Oct 20 2015, 07:14 PM
r_towle The fan and flywheel both bolt to the crankshaft. Oct 20 2015, 07:46 PM Dave_Darling That won't affect the fan versus the flywheel,... Oct 20 2015, 08:39 PM Bartlett 914 What Dave said is correct. I would only add that y... Oct 21 2015, 06:56 AM
stugray Many fans are missing a mark at TDC (ZERO) and hav... Oct 21 2015, 07:55 AM |
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