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Old 04-06-2009   #1
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Flywheel

Hello

i am currently rebuilding my 1242 engine, however looking at the haynes manual it mention that there is a possibility of making the timing 180 degrees out if not put on correctly. Does anyone know the correct way of putting on the flywheel? i have noticed that there is a notch in the flywheel, does this line up with some mark?

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Old 04-06-2009   #2
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Re: Flywheel

theres a pin pressed into the crank or the flywheel (cant remember which) so cant be put on the wrong way. even if you some how managed it the timing wont change as the ecu timing comes from the pully on the drivers side of the engine
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Old 04-06-2009   #3
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Re: Flywheel

cheers mate, thats what i thought but the haynes stated it could be 180 out? which threw me.

cheers again
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Old 04-06-2009   #4
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Re: Flywheel

As craig said, I can't see how the timing can be put out by the flywheel/crank relationship.

Crank timing being 180 (180 phase as well) out doesn't make a jot of difference with the ECU being an SPI or MPI engine. But cam timing being 180 out (90 phase!) will probablly stop the engine from working period.
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Old 05-06-2009   #5
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Re: Flywheel

If it is the crank pulley you mean (ie not the flywheel) then yes its possible to get it wrong, there is a tiny 'pip' and a small hole. It is possible to not line these up. I think thats what you mean ???
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Old 05-06-2009   #6
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Re: Flywheel

nope i mean the flywheel, maybe i am reading the manual wrong but if you look at the haynes manual chapter 2B (OHC engine in car repair procedures) paragraph 11 it mentioned the flywheel 180 out. As i said it could be me reading it wrong.
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Old 05-06-2009   #7
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Re: Flywheel

I can't find my Cinq manual at the moment but the Punto manual talks about alignment not timing. Basically if you get it the wrong way round the TDC marking on the flywheel will be 180 out, which has about as much consequence to the engine as what you had for lunch.
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Old 05-06-2009   #8
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Re: Flywheel

Unless you use it to find TDC on no.1!

So, putting it on it's head, so to speak, and if there is more than one way of putting the flywheel on, set the engine to TDC on compression on no.1 cylinder (both valves closed) -- you'll do this for the valve timing anyway -- then pop the flywheel on with the mark for TDC lined up.

The engine, as said, taketh no readings from the flywheel and really doesn't care, but you might like to be kind to subsequent human operatives.
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Old 06-06-2009   #9
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Re: Flywheel

just read that in the haynes. yes it says some cars have 1 dowel, 2 holes so its possible to fit either way. But it shouldn't affect the car. It certainly doesn't affect the timing.
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Old 06-06-2009   #10
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Re: Flywheel

Coming back to basics, you should always mark the position of the flywheel on the crank before removal as they will be balanced together.

It would also help on a 1242 to mark the position of the damper too.

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