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Main bearings???

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Old Apr 8, 2009 | 04:09 PM
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Default Main bearings???

Does anyone know where I can get a DIY for main bearnings? I searched but found nothing. Also do you have to take the motor out to do main bearnings?
Old Apr 8, 2009 | 04:15 PM
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which bearings are you talking about? Are you doing DIY to rebuild a motor? I dont advice you doing that unless you have enough knowledge and tools to do it right otherwise I say to you are going to have more problems and spend more..
Old Apr 8, 2009 | 04:21 PM
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Originally Posted by Ace83
which bearings are you talking about? Are you doing DIY to rebuild a motor? I dont advice you doing that unless you have enough knowledge and tools to do it right otherwise I say to you are going to have more problems and spend more..
Well I dont know if that is my problem I have a shop that will let me use any tool and any lift possible I heard a clanking noise in my motor in the bottom of my oil pan there was silver flakes a friend of mine who has a tc told me it could be a main bearing
Old Apr 8, 2009 | 04:26 PM
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dont do it yourself with a DIY (if you find one), get someone experienced to help you out if you do it in your place.
Old Apr 8, 2009 | 04:43 PM
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Originally Posted by Ace83
dont do it yourself with a DIY (if you find one), get someone experienced to help you out if you do it in your place.
Right I understand that do you think it is a main bearing? also I have to do all the prep work for them to replace them so do I need to take out the motor?
Old Apr 8, 2009 | 07:49 PM
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it could be your main bearings or it could be your rod bearings or it could be metal form other internal parts. you need to take it apart and take a look. and yes, take the motor out. if you don't know what you are doing then i would have someone else do it because this motor isn't as simple as others.
Old Apr 8, 2009 | 07:57 PM
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Originally Posted by TcPrincess
it could be your main bearings or it could be your rod bearings or it could be metal form other internal parts. you need to take it apart and take a look. and yes, take the motor out. if you don't know what you are doing then i would have someone else do it because this motor isn't as simple as others.
I am very well motor inclined i just hate taken out this motor this will be the 8th time doing it... ftl
Old Apr 8, 2009 | 08:01 PM
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why did you pull it out 8 times?
Old Apr 8, 2009 | 08:14 PM
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if its knocking its a rod bearing - your rod bearings are def DONE and the crank will need to be turned - journals are toast. Also rods could be damaged - should tear down motor and perform ful inspection.
Old Apr 8, 2009 | 09:42 PM
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No, you don't HAVE to take the motor out, but it sure does help, as it's a major biscuit trying to replace them with the motor still in the car. You'll need to drop the oil plan and possibly the crossmember, and working below it means many things like bolts caps & bearings may fall on you, along with some nasty oil drips.
Old Apr 11, 2009 | 05:31 PM
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Originally Posted by streetracer99x
Well I dont know if that is my problem I have a shop that will let me use any tool and any lift possible I heard a clanking noise in my motor in the bottom of my oil pan there was silver flakes a friend of mine who has a tc told me it could be a main bearing
If you have flakes it's most likely either rod or main bearings. This can definitely be done in car [IMO much easier than pulling the engine and tearing it all down].
Dropping both pans and the cross member will have to be done anyways, plus all that extra work...
Oil drips aren't a big deal, and you shouldn't have rod bolts falling on you, as you remove each one take it down....

HOWEVER, these engines have VERY tight tolerances [the clearances are measured in HUNDRED THOUSANDS of an inch; 0.00001], and if a bearing spun most likely there is at least some damage to the journal. This might not matter if you had a wider tolerance, but probably will on these.
Also, plastigauge [the normal method for measuring bearing clearance] isn't accurate enough for this, you'll need inside and outside micrometers.

To actually pull the crank you do have to remove the engine and tear it down [you can leave the head on if you want], so if you are comfortable with engines you might want to just tear it out [not that hard to do anyways, there's not a lot of stuff].
Old Apr 12, 2009 | 06:35 AM
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dude, if you've already pulled it out 8 times then don't be a hack, pull it out, inspect everything and do it right or you'll be doing it agian.
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