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Old Feb 15, 2014 | 07:05 AM
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Default timing setting

Guy,
i got my rogerUS kit today, now i want to replace it all..

but when i set my crankshaft to 0T cylinder 01 is at its lowest point instead of TDC.
cylinder one i take it the the one thats the first on the left side standing infront of the car, as my inginiton wire states..

my car is a porsche 928 from 1984.
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Old Feb 15, 2014 | 07:58 AM
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Originally Posted by RobbieStrosek
Guy,
i got my rogerUS kit today, now i want to replace it all..

but when i set my crankshaft to 0T cylinder 01 is at its lowest point instead of TDC.
cylinder one i take it the the one thats the first on the left side standing infront of the car, as my inginiton wire states..

my car is a porsche 928 from 1984.
Probably someone put on the harmonic balancer backwards. It's a right of passage (and a bad design).
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Old Feb 15, 2014 | 08:14 AM
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then what's the right way of the harmonic balancer ? mine is green and the front of the balancer was green aswell...

ill try putting it backwards again and see if the cilinder lines up.
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Old Feb 15, 2014 | 08:17 AM
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That's odd.

But does flipping the harmonic balancer over and installing cause the tdc mark to move 180 degrees?

Maybe time for a coffee.
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Old Feb 15, 2014 | 08:20 AM
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Are you looking through the spark plug hole?
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Old Feb 15, 2014 | 08:22 AM
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yeah looking trough plug cilinder 1...
atleast thats what the wire from the rotor cap told me....
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Old Feb 15, 2014 | 08:49 AM
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https://www.google.se/search?q=Porsc...&bih=369&dpr=2
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Old Feb 15, 2014 | 10:19 AM
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turned the balancer and it was spot on the millimeter..hehe daft people from the garage that placed it wrong..

ohwell thnx for the advide y'all..

i have the cramshafts at the markers and the crankshaft at 0T ......gonne be fun
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Old Feb 15, 2014 | 10:29 AM
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Be careful to set the cams in a position that will not cause the valves to interfere with the pistons if you turn the crank.

Is an '84 a non-interference engine?
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Old Feb 15, 2014 | 10:32 AM
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Originally Posted by LT Texan
That's odd.

But does flipping the harmonic balancer over and installing cause the tdc mark to move 180 degrees?

Maybe time for a coffee.
Duh, only if the TDC mark is in line with the key groove.

If it is 90 degrees off, flipping will make it 180 degrees off.

Caffeine is wonderful stuff.
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Old Feb 15, 2014 | 11:04 AM
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To tell if the crank is set to #1 TDC,
the woodruff keyway will be pointing to the 4 O clock position,while your facing the engine crank.

NOTE 45 BTDC will be at the 3 O clock position.

NOTE the damper should be easily read while facing the engine
IE the numbers should not be upsidedown.
posting pictures will add more detail

NOTE where #1 cylinder is in the posted picture
Attached Images
File Type: jpg
firing order.jpg (4.1 KB, 226 views)

Last edited by Mrmerlin; Feb 15, 2014 at 12:20 PM.
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Old Feb 15, 2014 | 04:05 PM
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edit: deleted 'cos its early and there were lots of posts since I loaded the page last night.
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