Flywheel positioning - Alfa Romeo Bulletin Board & Forums
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post #1 of 5 (permalink) Old 07-10-2019, 12:17 PM Thread Starter
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Flywheel positioning

Hello,
got a transmission rebuilt, new clutch and resurfaced flywheel.
Putting all back together... can anybody confirm that with the crank pully alligned on the "P" punto mark, and the flywheel notch at 12 o'clock it is OK to have the magnetic sensor screw about 2 inches from the first sensor hole between the 2 studs?

Thanks!

Giuseppe
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post #2 of 5 (permalink) Old 07-10-2019, 12:38 PM
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I'm assuming that this is on your 82 Spider with the stock Bosch L-Jet. In the photo below, you can see the flywheel mark at 12 o'clock and the location of the sensor screw on my S3.
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post #3 of 5 (permalink) Old 07-10-2019, 01:16 PM Thread Starter
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Yes!! 82 Bosch..looks like yours thank you

Giuseppe

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post #4 of 5 (permalink) Old 07-11-2019, 03:00 PM
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You will find a stamped line on the outside rim of your flywheel. This is the top dead center mark. You will also find that in one of the flywheel bolt holes the threads are recessed. This is the top dead center of the engine. Line the mark on the outside rim of the flywheel to the hole with the recessed threads and your flywheel will be in phase with the crank.

Using this method you don't have to line up the pulley with the pointer.
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1969 1750 Spider Veloce w/dual webers, 1969 1750 Berlina, 1971 1750 Spider Veloce w/ dual webers, 1985 Spider Veloce 23,000 orig. miles, {Two} 1986 Spider Veloces, 1987 Spider Veloce bought new, 1988 Quadrifoglio, 1991 164S, Plus several more. I think they are breeding.
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I just got 2 more. Now I have a Matta. I must be crazy.
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post #5 of 5 (permalink) Old 07-12-2019, 12:28 AM
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this shows both the alignment mark and the recessed threads, which Jim G refers to:

https://www.alfabb.com/bb/forums/6824673-post16.html

Dom - Alfa Spider 1990 S4 - formerly: Alfa 101 Sprint, 2600 Sprint, Montreal - family classics: Jensen Interceptor II, '58 Hooper RR Silver Cloud I, Shadow II, '60 Corvette.
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