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Old 03-01-2021, 05:54 PM   #1
Brunsieboy
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Member#: 522405
Join Date: Feb 2021
Location: Canada
Vehicle:
1999 EJ22

Default Crankshaft Pulley/ Harmonic Balancer going up and down

I'm doing an ej22 engine swap into a VW T2 and when I start the engine is starts nicely, makes a high pitched noise and then stalls after 5 seconds.

On inspection of the engine, the crankshaft pulley looks like it's is going up and down as well as in a circle. Is this a sign of a busted crankshaft...my spider sense says something has gone on the inside of the block

Any advice would be appreciated.
Andy
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Last edited by Brunsieboy; 03-01-2021 at 06:03 PM.
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Old 03-01-2021, 07:31 PM   #2
Elbert Bass
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If just the outer section of the pulley is all that is moving you need a new pulley. If the inside section (where the crank bolt is) is wobbly and moving your crank bolt is loose and the keyway on the pulley and possibly the key in the crank could be damaged. Only way to know is remove the pulley and inspect.
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Old 03-01-2021, 07:59 PM   #3
Unabomber
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And due to the timing mark/smudge/dirt it may just LOOK like an issue due to an optical illusion. Most busted pulleys I've seen here are 100% busted and you can see it when the motor is off as the rubber ring is fubar. If you are brave and skilled a long screwdriver can be layed carefully across the pulley at speed to show you if there is real vibration.
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Old 03-01-2021, 09:18 PM   #4
Brunsieboy
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Join Date: Feb 2021
Location: Canada
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Thank you Elbert/Unabomber,

I removed the pulley and it had slipped its key. I reinstalled the pulley and torqued it by wrench. The wobble has disappeared.

Chapeau sir!

Last edited by Brunsieboy; 03-01-2021 at 09:33 PM.
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