RallyKeith Posted November 8, 2003 Share Posted November 8, 2003 Ok, so I went and bought new main and rod bearings and also rings for my EA-82T rebuild. I got them home and opened them up and both bearing sets say EA-63,71,81 on them, the one set was even made in 1985! Anyhow, I did some looking on http://www.carparts.com and it appears that the same part number for all three sets is the same from an EA-81 to an EA-82T! Is this right? Keith Link to comment Share on other sites More sharing options...
electryc_monk Posted November 8, 2003 Share Posted November 8, 2003 after all someone was making noise back when we were on EZBoard still that the EA81 psitons well actually the EA71 pistons were a nice 8.5? CR and that was better then the 7.7 EA82T's we currently run... and then there was the tangent to the idea on reorganizing the engine with a longer stroke using the pistons from a 1600 .... and then it all got weird from there so if your asking that its possible ... I'm willing to wager a good sized bet that there will be abunch of EA81/71/61/82/82T internals that are actually the exact same part and part number. From a design stand point.. why "reinvent the wheel" ever time you increase engine size? look at the Cadillac for example (I had a caddie while in the navy - it was BAba's(my gramma's) ... the 1977 coup De ville was a 425 V-8... did some researching turns out that its the Exact same block as their famous 500 from the mid 1960's they just made smaller jug's and shortened the piston shafts, and shaved the heads. boom a 425. same boat ancher of a block too. see why I'm with you on the thinking that they are actually the same parts..... Link to comment Share on other sites More sharing options...
Adam N.D.J. Posted November 8, 2003 Share Posted November 8, 2003 I'd say the same, essentially the internals would be the same. Between the EA81 and EA82's in that aspect. The only real difference between the two motors is the placement of the cam, other than that, not much different. The EA81 doesn't have bearing for the cam, so it would prolly have the same bearings. I'd almost go as far as saying that it uses the same crank. And why not. It's expensive to buy/build new machines to make new parts, so why not use the same machine to make the old cranks to make the new cranks. A friend of mine that used to work at Subaru used to tell me that the only real reason that Subaru stopped making EA cars in the early 90's was because the die's for making them were so worn out they couldn't be used any longer, and heck, I believe it, you use the same machine to make the same part for 10-15 some odd years, then yeah, it's going to wear out. (remember, Brats made it to Aus all the way up to the 90's). Anyways, I'm getting off on a tangent here. Check the new stuff to the old stuff and see if it's the same, thats all I can really say. Link to comment Share on other sites More sharing options...
toybuilder Posted November 8, 2003 Share Posted November 8, 2003 Same crank and same Main Bearings. EA82 Turbo had different Rod Bearings, but they are interchangeable. The turbo ones are better. Piston Rings are the same too. Link to comment Share on other sites More sharing options...
RallyKeith Posted November 8, 2003 Author Share Posted November 8, 2003 Originally posted by toybuilder Same crank and same Main Bearings. EA82 Turbo had different Rod Bearings, but they are interchangeable. The turbo ones are better. Piston Rings are the same too. That's kinda funny to me. My engine spun and destroyed a rod bearing! In fact, when we (professional engine builder and I) went through and ordered the parts the Rod bearings were only offered in one material that he told me wasn't as good as the mains material we were getting. Keith Link to comment Share on other sites More sharing options...
toybuilder Posted November 8, 2003 Share Posted November 8, 2003 The difference is that the turbo rod bearings are wider. You can only get them from Subaru or from NDC (the original manufacturer for Subaru). I think all the after market places only offer the non-turbo version, for either application. Link to comment Share on other sites More sharing options...
RallyKeith Posted November 11, 2003 Author Share Posted November 11, 2003 Originally posted by toybuilder The difference is that the turbo rod bearings are wider. You can only get them from Subaru or from NDC (the original manufacturer for Subaru). I think all the after market places only offer the non-turbo version, for either application. You are Absolutely Correct! I lined up the new bearings with the old and they were a good 3/16" narrower.(If that's a word) So I guess it's back to the parts store to see what can be straightened out. Keith Link to comment Share on other sites More sharing options...
toybuilder Posted November 11, 2003 Share Posted November 11, 2003 I don't make s**t up... I post real info, hopefully my experience can save someone else some time and or $$. Good luck with your repairs. Link to comment Share on other sites More sharing options...
Petersubaru Posted November 12, 2003 Share Posted November 12, 2003 don't buy Federal Mogul crank bearings..there standard size involves turning the crank to get the proper end play....in other words ,the centre thrust bearing will not fit using the standard size unless you first turn the crank to accommodate the wider bearing....ACL bearings form Australia are exact in every way and come in different sizes....both federal and hastings rings were .004 over the max.allowed for the end gap..needless to say, I returned them also....I am using Nippon Piston rings standard size....the end gap is within the specs subaru calls....you can live with a larger gap...but if you're going this far, might as well do it right......I don't live in the States, so as to get the parts I do not know....the proper parts listed above can be purchased in the States Link to comment Share on other sites More sharing options...
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