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Old 01-11-2008, 06:53 PM   #1 (permalink)
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Default Belt tensioner screw broken

I have searched other threads, but almost all belt problems look like they are timing belts.

I was trying to fix the loose belt that runs alternator (the belt on the right side - in front of the radiator) on my Forester 2000 - 90K miles. I figured the long screw holding the tensioner needs tightening. After some tightening, "snap" and some cursing, I found out that I needed to release the nut that holds the pulley tight.

Anyway- now I have a broken part around the belt, and I'm not running the engine until it's fixed. I tried to search for parts, but couldn't find anything. The pictures are from another forum - the broken part is the thing that's attached to the screw (it snapped in half)

http://nissaninfiniticlub.net/photop...8dscn00172.jpg
http://nissaninfiniticlub.net/photop...8dscn00201.jpg
(rest of the page is here http://forums.nicoclub.com/zerothread/178549 - but it's irrelevant)

First - what's this thing called? drive belt tensioner screw holder?? Does anyone know where I can find a replacement? A part number, or a name would be appreciated.

Also since someone (me or the mechanic) will need to take out a lot of parts, is it a good idea to change those belts? The main reason I wanted to fix$?# it was that, it was oscillating and bumping to the cover above it.

thanks
Baris
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Old 01-11-2008, 07:50 PM   #2 (permalink)
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the belt that connects from the crank pulley to the alternator & power steering pump?

if i remember correctly, there's just 1 long slider bolt to adjust the tension (raises/lowers alternator) and 1 locking bolt. which did you break?

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Old 01-12-2008, 06:22 AM   #3 (permalink)
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It's the other belt - (AC and IP- what's IP??). I took some pictures, and it looks like the broken thing is a part of the pulley. Another question, when I raised the cover above the belts, there is red dust - what's this? is it the belt dust??



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Old 01-12-2008, 06:47 AM   #4 (permalink)
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On second thought, if I take this screw out totally, so that it won't hit the other belt, can I run the engine?

I'm not going to take a road trip, I will take the car to the shop.
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Old 01-12-2008, 06:58 AM   #5 (permalink)
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^
o, if that's the LH side, then you're fine -- make sure you didn't release that lower locking bolt/nut. that side is just for the AC compressor. you can still run the engine w/o it.

IP is probably Idler Pulley -- part of that thing you broke. lol

as for that red stuff, i can only guess that somebody sprayed something that quiets belt squeel.

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Old 01-12-2008, 07:23 AM   #6 (permalink)
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Thanks a lot taF -
Idler Pulley makes sense :) I was searching for tensioner pulley,

Do you know any place that sells this part (other than junkyards and Subaru dealerships)
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Old 01-12-2008, 07:52 AM   #7 (permalink)
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^
one place that somebody on here recommended me was http://subarupartsforyou.com.

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Old 01-12-2008, 07:58 AM   #8 (permalink)
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The red stuff is dust from the A/C compressor clutch. It shouldn't be anything to worry about, mine has it too.
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Old 01-12-2008, 08:16 AM   #9 (permalink)
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^
it really leaves that much dust? o, that reminds me.. i need to add in some refrigerant.

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Old 01-12-2008, 08:58 AM   #10 (permalink)
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ok, so I removed the broken part of the "adjuster for AC idler pulley" and tied the long adjuster screw with a tie wrap. Ran the engine - no explosions :)

I ordered the part from subarupartsforyou (thanks taF) - which is cheap. I'll take the car to shop - cause don't think I can take off the radiator and idler pulley.

Thanks for all the advice
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Old 01-12-2008, 10:52 AM   #11 (permalink)
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^
what do you need to take the radiator off for?

as for the idler pulley bracket, it's just 2 bolts holding it. ez to remove yourself.

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Old 01-12-2008, 05:54 PM   #12 (permalink)
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hmm, the nuts that hold the pulley bracket seemed hard to reach. I have a rachet - and the radiator fan gets in the way.

Is there any manual on removing the fan? Also can it be removed without taking the rest of the cooling system down? (or is there a tool that would let me take the pulley bracket without removing anything else?)

thanks for all the help
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Old 01-12-2008, 06:10 PM   #13 (permalink)
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^
i can take it out w/o removing any part of the radiator of fan shroud.

try different sockets -- short/deep, short with extension, etc.

wait, are you removing the bottom single nut piece? remove the two bolts that are holding the bracket in place. that will be easier for you. keep in mind it will lossen the AC belt. you'd have to remove the power steering/alternator belt to get the AC belt out of the way. it's simple enough though.

reminder: loosen locking bolt before adjuster bolt. lol

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Old 01-13-2008, 04:40 AM   #14 (permalink)
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That "dust" looks suspiciously like red dye someone may have added to AC lubricant/refrigerant. You might check under the AC low side cap. There will usually be some residual oil under the cap. If it's red, you know you have a compressor rotating shaft seal that is leaking your refrigerant/lubricant. Some shaft seals are replaceable. Check w/ ackits.com for shaft seal, and you may need an installation tool. I've found it is easier and sometimes cheaper to find a good used compressor. check car-part.com.

BTW, this part was likely broken when someone tried to adjust belt tension w/o releasing the lock nut on the sliding mechanism.

good luck
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Old 01-17-2008, 02:59 PM   #15 (permalink)
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"BTW, this part was likely broken when someone tried to adjust belt tension w/o releasing the lock nut on the sliding mechanism."

exactly - and that someone is me. thanks god- the part is only $7, but still it's caused me agony.
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