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98 forester/outback
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7 Posts
Discussion Starter · #1 ·
I am not sure the specifics on this but here it goes.

I sent my vehicle to get the door locks done and have the drive belt tightener replaced (at least i think it was the tightener, bar with bolt closest to the drivers side.

Anyway when I got it back the center pulley (i think it is the crankshaft pulley?) seems to wobble. I am not sure if they loosened it and just didn't tighten it all the way or what. I am just looking to see if there is a way I can tighten it, or if it is something more. It did not do this at all before I sent it down to get the other things taken care of. I am not saying they did something, I just think maybe they didn't tighten it all the way. Advise would be helpful(besides just sending it back)
 

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The crankshaft pulley is also a harmonic balancer and has a rubber bushing between inner and outer sections. If this rubber breaks down, the pulley may wobble and slip relative to crankshaft. This can cause alternator charging problems and other effects of low accessory drive speed.

Also the crankshaft pulley bolt could be loose,...very bad. You could loose the crankshaft pulley and damage the radiator possibly. It needs to be tightened to 130 ft-lbs (at least that's what my manual says for 99-02 models.

Tightening the Alt-AC accessory belt w/ a new tensioner might cause a damaged crankshaft pulley to wobble.

good luck
 

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14 Outback 25 Premium 4EAT
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130 Posts
We had a similar problem on our '04 last summer. The rubber insulation disintegrated and required a pulley replacement. Fortunately, a nearby Subaru specialist had a replacement and we were back on the road in a couple hours with no further trouble.
 

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1999 Forester
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Pulley Key

Does anyone have a picture of the key. I removed my pulley today because it was loose. I don't see a key. Does the key just keep the pulley from turning on the shaft? Also, where do I get this replacement rubber bushing?

TIA

Dave G
 

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2008 Forester X Premium 5MT
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8,064 Posts
As is said the rubber is not available by itself. It is supposed to be bonded to both parts of the pulley.

There are some after market options available at parts stores for new pulleys.

The key is a shared key with the timing belt pulley/cog. It is a woodruff key(half moon). You can see it in this thread crankshaft key - Page 2 - Ultimate Subaru Message Board
 
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