Engine/Power - non turbo (All non turbo Imprezas) Who needs a turbo when you have 2500cc? Cams, intakes, exhausts, etc. The 2.2L and 1.8L Subies are cool too.

help with ej25 rebuild?

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Old May 6, 2013 | 11:32 AM
  #76  
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I did but only because I could use the extra security considering my compression will be bumped way up.
Old May 6, 2013 | 12:00 PM
  #77  
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I was talking more for a stock 2.5RS rebuild. No upgrades

Question:

Should I replace connecting rod bushing? im getting mixed suggestions
Ill also be inspecting/measuring today

Last edited by 02RS25; May 6, 2013 at 01:14 PM.
Old May 6, 2013 | 01:58 PM
  #78  
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To answer your last question...

What connecting rod bushing are you talking about? The sleeve that the wrist pin slides into?

If so, then you would only need to replace them if they are measured to be out of spec. The FSM will have all of those specs and their respective tolerances.
Old May 8, 2013 | 09:07 AM
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Ya. small end bushing. where the wrist pin rides. Im going to take measurments and take internals to shop to have a second opinion.

Parts will be in by today and Ill post pics of my early bday presents to myself. LOL
Old May 10, 2013 | 09:57 AM
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Parts are in! WEll the crucial ones:
-engine gasket set
-water pump
-oil pump
-thermo
-clutch bearings (TO and Pilot)
-piston rings
-gates timing belt kit
-whiteline + traction
-whiteline steering rack bushings

waiting for block and internals to come back from shop to see what bearing i need and to see if those small rod end bushings i was talking about need replacing.

I will post pics soon. Last night i spent some time cleaning the OE parts ill be reusing: starter, intake mani, TB, oil pan, rocker covers, timing covers, cam pulleys, alternator and brackets, fuel line "shields?", fuel lines, etc.

Anyone who has rebuilt there SOHC RS engine: besides viually matching up all the different o-rings and gaskets, is there a better/faster/easier way to find out which o-ring is for what? they came all bundled in one bag. no labeling. worse come to worse ill take the time and match them side by side and such.
@HarryManeuvers: GOing back to what you werre saying about the washers under case bolts (water jacket) being rubber....mine look like a softish metal....

Last edited by 02RS25; May 10, 2013 at 10:07 AM.
Old May 10, 2013 | 01:10 PM
  #81  
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They are metal with rubber on the inside. This is what they look like:

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The 2 that are at the front of each head are a little bit smaller and have a black rubber inside instead of orange.
Old May 10, 2013 | 02:14 PM
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Originally Posted by Harry Maneuvers
They are metal with rubber on the inside. This is what they look like:



The 2 that are at the front of each head are a little bit smaller and have a black rubber inside instead of orange.
yeah same color. i guess i didnt look close enough or they were too dirty. and the front 2 on each head by smalller u mean THINer? because, ya they deff were thinner than the rest. Thanks for all the help bud!
Old May 10, 2013 | 04:37 PM
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No problem slugger.


Yea they are thinner and smaller diameter.

They go here on both heads:

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Oh yea, and one more thing before I forget. Dont forget to clean out the grooves in each piston for the piston rings. Even after having them jet cleaned at the machine shop, all of my pistons still had a ton of build up/deposits in the ring grooves themselves. I had to take the dentist picks that I mentioned earlier and go around each groove in each piston and scrape/flake off all of the deposits. I was told this could keep your rings from seating. I am glad I did it because there was a TON of stuff in there.

Last edited by Harry Maneuvers; May 10, 2013 at 04:42 PM.
Old May 10, 2013 | 04:38 PM
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ohhhh....acutally NVM. i didnt touch those bolts or the head at all. i left that to the shop. i thought u meant the two water jacket bolts toward the front...when i get home ill take a closer look and post pics.
Old May 11, 2013 | 08:20 AM
  #85  
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Originally Posted by 02RS25


ohhhh....acutally NVM. i didnt touch those bolts or the head at all. i left that to the shop. i thought u meant the two water jacket bolts toward the front...when i get home ill take a closer look and post pics.

Just make sure that the machine shop is replacing those two washers on each head because I doubt they will know to.

They are going to have to remove those bolts to do a valve job.
Old May 13, 2013 | 08:57 AM
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Originally Posted by Harry Maneuvers
Just make sure that the machine shop is replacing those two washers on each head because I doubt they will know to.

They are going to have to remove those bolts to do a valve job.
ill double check when i take my blockj in for cleaning. they already rebuilt them and yes they did a valve job. so tehy removed those bolts. whether or not they replaced with new? IDK. ill tkae them back in when i take block. I was going to take the block in this past weekend. but got caught up with the bottle....LOL. was my bday this past weekend and just.....partied all weekend. LOL Ill update with real updates soon!
Old May 30, 2013 | 05:20 PM
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yesterday i had a productive day off prepping parts for assembly....only to find out my crankshaft and bores are worse than i thought

removing seal from tensioner "bracket"

help with ej25 rebuild?-965616_10152878992095174_883877642_o.jpg

#1 rod bearing with knicks:

help with ej25 rebuild?-198355_10152878992560174_2028830090_n.jpg
help with ej25 rebuild?-970758_10152878992310174_1113062929_n.jpg


Any reputable machine shop vendors able to chime in? im looking for a shop that can help me go about this. id rather not run ONE oversize bearing. TIA!
Old May 30, 2013 | 05:28 PM
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oh sweet! SGP now included a free kitty for online orders over $500!. i got the black one when i ordered timing belt kit, group n mounts bahahaha
help with ej25 rebuild?-901149_10152836833790174_1992674511_o.jpg
Old Jun 11, 2013 | 03:58 PM
  #89  
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sorry for the lag guys! been super busy with work. got a call from the shop saying my internals are done! here are some pics of some prep work while i waited.

rocker covers cleaned



New rocker cover gaskets as well as bolt washer gaskets






Old Jun 11, 2013 | 04:31 PM
  #90  
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Looking good!



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