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Anybody Ever Bandsaw Apart An EA82T Head?
Posted 16 September 2004 - 06:52 PM
Has anybody ever sectioned an EA82(T) head to see what's in there?
This activity, both potentially fun and melancholy, might prove useful to the extemists in our midst. You know, the ones that want to port their heads, or look for tap points for cooling or oil enhancements.
Or for dealing with stripped headbolts. Is there enough material around the headbolt holes to open them up to accept 12mm fasteners (preferably *studs*) in some common thread? How about 13MM?
C'mon! Might be fun!!!
And, since I figure anybody that has read this far is almost as sick as I am, has anybody tried having their cracked heads "plugged"? This is a fairly common practice in the rest of the Japanese engine world, but I haven't even seen a disparaging comment yet. Any horror stories?
Posted 16 September 2004 - 07:00 PM
Posted 16 September 2004 - 07:08 PM
Posted 16 September 2004 - 07:37 PM
Posted 16 September 2004 - 07:39 PM
the "better" way to do it instead of merely cutting one if half would be to make 10-20 "slices" out of it so all the port work could be inspected on slive by slice basis
Posted 16 September 2004 - 07:54 PM
Anybody with an EA82T can make all the cracked heads they want if they try hard enough! I have a few (none my direct doing), but I am still hoping for the "plugging fairy" to tell me it is OK to fix them.
Posted 17 September 2004 - 04:30 AM
Posted 17 September 2004 - 03:27 PM
Posted 17 September 2004 - 04:03 PM
I sawed the front of my car off to pull the engine:brow:
(20 minutes flat!) including tires, struts, tranny!
82 SubaruHummer---with easyoutengine!
01 Forester---don't even think about it! :-p
Posted 17 September 2004 - 05:15 PM
Posted 17 September 2004 - 06:56 PM
The only real experience that I have had with head studs in cars was my old Triumph, which had studs thick as my finger and reaching down near the mains. Engine was cast-iron/cast-iron so differential expansion wasn't such a big deal. Head-torquedown was like 120Ft/Lbs. (came from a diesel design...).
Anyway, unlike the aircooled flat-4/-6, the Subaru headbolt (or potential stud) just thread into the cylinder deck; much shorter, perhaps less diff. expansion issues. Were the a-c engined studs snapping from expansion problems axially or radially (i.e along length or across diameter)? I would say that studs thicker on the threaded ends would probably be a good idea (and look cool!) but I don't know how available they are.
Just my 2 cents (US; Can about 3 cents?)
Posted 17 September 2004 - 07:45 PM
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