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Loose crankshaft bolt?


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11 replies to this topic

#1 Midwst

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Posted 27 July 2005 - 06:24 AM

If a crankshaft bolt works loose and ruins the crankshaft, is the pulley and related parts still okay? Asking because I will be using some used parts on my engine job. I'm thinking they'd be fine, but wanted to check. Thanks.

#2 lmdew

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Posted 27 July 2005 - 08:17 AM

Most of the time they are damaged as well. Get used ones that are good.

#3 edrach

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Posted 27 July 2005 - 08:41 AM

The harmonic balancer and key are usually ruined before the crank's keyway is damaged.

If a crankshaft bolt works loose and ruins the crankshaft, is the pulley and related parts still okay? Asking because I will be using some used parts on my engine job. I'm thinking they'd be fine, but wanted to check. Thanks.



#4 Midwst

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Posted 27 July 2005 - 11:30 AM

Thanks guys. One other question: does the harmonic balancer part ever wear out? I know that on some GM cars, there is a rubber part in the harmonic balancer that starts to degrade/crack and wear out. I don't know if this is true for subaru.

#5 lmdew

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Posted 27 July 2005 - 06:08 PM

Solid metal no rubber or plastic

#6 avk

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Posted 27 July 2005 - 06:41 PM

On my 2.2, the pulley is two-piece, with a rubber layer in between. The holes for factory crankshaft holder tool are in the inner piece.

#7 Midwst

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Posted 27 July 2005 - 10:12 PM

I think it depends what year of 2.2L, Mine is a 1991.

#8 avk

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Posted 27 July 2005 - 10:23 PM

That thin rubber layer is hard to see, because of the shape of the pulley, the dirt, and limited view. But a '91 and a '95 may well be different.

#9 Midwst

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Posted 28 July 2005 - 12:25 PM

The 95 uses different parts that the 91.
One more question, can the tensioner and idler pulleys be reused if the crank pulley came loose?
Thanks.

#10 avk

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Posted 28 July 2005 - 12:59 PM

Subaruparts shows same part number, 12305AA242, for both years.

#11 Midwst

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Posted 28 July 2005 - 01:01 PM

avk, I guess that means that the rubber part can wear out? My car has 15 years and 187K miles!

#12 avk

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Posted 28 July 2005 - 01:37 PM

I don't know enough first-hand to tell how much risk there is. I remember looking at someone's Vanagon conversion site (can't find anymore) showing a salvaged EJ22 they bought with a broken pulley, and timing cover too as a result. As long as you have it off and verify it's a two-piece, might be a good idea to replace it.




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