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Old 12-14-2008, 07:47 PM   #1
hybridpatient95
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Default Subaru Main and Rod bearings

Im wondering how i can find out what bearings i need for my rods and mains. is there any codes or tags on the block or crank anywhere i can go to dealer and get bearings for my motor?
i know hondas there is a bunch of letters in specific spots on the crank and block that tell you what to look for on the chart at the dealer.

anyone got any clues?
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Old 12-14-2008, 08:11 PM   #2
Artie@Agile Auto
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Yes there are some, but that would not be much help to you, take a measurment after all of the machine work is done.

Artie
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Old 12-14-2008, 08:26 PM   #3
hybridpatient95
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where would they be located?
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Old 12-14-2008, 08:29 PM   #4
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Under the alternator, between crank position sensor and water temp sensor. I hope this helps.

Artie
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Old 12-14-2008, 08:37 PM   #5
hybridpatient95
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is there any markings on the crank lets says for the rod bearing sizes?
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Old 12-14-2008, 08:38 PM   #6
hybridpatient95
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on my crank it says
bbbbb IZZI
then a bunch of numbers underneath


could those be the sizes?

does subaru have any charts? or std,0.025,0.050 over are the only ones
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Old 12-14-2008, 09:30 PM   #7
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Can I ask, just out of curiosity, what are you trying to do?
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Old 12-14-2008, 09:38 PM   #8
hybridpatient95
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get new rod and main bearings for the ej22e
i got manley rods for it. its a phase one motor.
i just spun a rod bearing on my last crank cause the clearences were too tight. so im trying to figure stuff out all over again for the new crank
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Old 12-14-2008, 10:03 PM   #9
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So you want to get bearings based on what is printed on your block and crank and may be check it with plasigage?
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Old 12-14-2008, 10:06 PM   #10
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Hmm, did you build the first engine yourself?
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Old 12-14-2008, 10:07 PM   #11
hybridpatient95
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yes sir. i build all my engines myself.
so there are no different size bearings that i can get at the dealer? cause there is no way every journal is the same exact size.
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Old 12-14-2008, 10:11 PM   #12
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yes exactly get bearings spec'd from what the block and crank says and measure.
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Old 12-14-2008, 11:18 PM   #13
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u can std. or undersized bearings, that's it .just like A & B pistons , 2 choices from the dealer
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Old 12-15-2008, 02:42 AM   #14
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ACL have them.
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Old 12-15-2008, 05:21 PM   #15
hybridpatient95
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subaru motors suck!
no wonder everyone spins bearings, its like you either get lucky or your **** out of luck.. and there is no way each and every journal, crank subaru has producted is perfect to accept standard bearings
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Old 12-15-2008, 05:55 PM   #16
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That's why when you custom machine a shortblock, you machine the crank to the bearings...
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Old 12-15-2008, 07:01 PM   #17
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will do.
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Old 12-15-2008, 08:13 PM   #18
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Ok, to start with you can mike the bearings to see if they are within factory stock specs. If they are you know by miking them what size they are right? Then you order standard size bearing to use with them ok? If they are not within specs you can have the crank journals cut down to the next smaller size and order bearings in that size .010, .020, .030. OK? Once you get the bearings to go with the journals you either mike them, OD and ID and you subtract the sizes to get the clearances or you plastigage them after torqueing the rods and or the mains to see what the clearances are. If they are not right either you didn't add and subtract right or you didn't use the plastigage correctly or the machinist screwed up, and you get to try again. This is why some people take their short blocks to the people that know what they are doing. You can save money by doing it yourself but if you have to do it several times it isn't any cheaper than paying someone that knows what they are doing to do it right the first time. There are NO NUMBERS that will tell you about the wear that has happened inside a motor or the quality of the machine work that has been done on motor parts, they will always need to be measured. Sure you can order parts for a brand new crank and the new bearings will usually work out ok but you still need to check them usually with plastigage. After a motor has been used it will always have looser clearances if you just order the original stock bearings and just throw them in without checking them. A lot of times it will be ok but how will you be sure without measuring them first? Ordering parts is usually the easiest part sometimes ordering the right part is not as easy but is always the cheapest way out.
If the crank journals are too big, as in the clearance is closer than the spec you want the crank can be polished down to the correct clearance for that specific bearing also the bearing shells can be swapped to get a different clearance. Just use a known good stock size crank and rods and measure it all and that usually works but you still gotta measure to be sure. There are undersize bearings for worn cranks if you mike the journal you will know the size you need if the journals are still smooth that will work. Some mfg. have .0005 and .001 and so on undersize bearings from standard.
I don't know that the dealer is the place to buy bearings unless you know that the crank and rods are new and or in spec.
The dealers don't usually build shortblocks.

Last edited by charliew; 12-15-2008 at 08:32 PM.
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Old 12-15-2008, 09:10 PM   #19
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dealer charge way too much for bearings .. have a machine shop find you some
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