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EA82 head crack between valves
Posted 02 January 2013 - 08:28 PM
Posted 02 January 2013 - 09:15 PM
might be worth your time to get a machine shop to check them out, or at least take a good picture and post it here so those that work on them often can see.
all in all, if they dont leak id run them.
Posted 02 January 2013 - 10:09 PM
Posted 03 January 2013 - 08:59 AM
Posted 03 January 2013 - 09:01 PM
that way you can have pics that you want to share on there and link wherever you feel like. it doesn't cost anything.
Posted 03 January 2013 - 09:09 PM
Posted 03 January 2013 - 10:29 PM
Posted 03 January 2013 - 11:33 PM
In my efforts to resuscitate my91 loyale I have acquired a used head but I now notice a crack between the valves....what I wonder is how significant this is? It's an old car and I'd be satisfied with another 50,000 miles. Is it even worthwhile to put this head onto the engine? I'll work on getting a picture up...
Look for a tiny crack in the rib in the exhaust port, before you put it back in. If it has one, then you have another door stop.
Posted 04 January 2013 - 11:38 AM
Posted 04 January 2013 - 01:51 PM
i take a blunt small punch and gentaly peen the cracks closed so combustion cant get into the crack and enlarge it
Small punch, so you don't disturb the valve seat.
Posted 04 January 2013 - 01:54 PM
Posted 05 January 2013 - 09:50 AM
Posted 05 January 2013 - 10:54 AM
Posted 06 January 2013 - 11:30 PM
Posted 10 January 2013 - 01:52 PM
Posted 10 January 2013 - 01:59 PM
Do you think it's a waste for all Subaru heads or just for the EA82 heads? I'll be interested to see if they come back having had them fixed.
Posted 10 January 2013 - 03:39 PM
Posted 10 January 2013 - 04:22 PM
Posted 10 January 2013 - 07:21 PM
Edited by Petersubaru, 10 January 2013 - 07:23 PM.
Posted 21 January 2014 - 02:45 AM
Posted 21 January 2014 - 12:36 PM
And don't put any short cylinder head bolts in the holes that require the longer cylinder head bolts. Because you will strip out the threads in your block when you attempt to tighten them to spec. Then your block is toast.
Edited by scoobiedubie, 21 January 2014 - 12:38 PM.
Posted 21 January 2014 - 01:22 PM
people are finding these cracks when they pull the heads from bad head gaskets. It's easy to blame the crack for a HG failure.
But bet your pennies, go pull off the heads from a known good running ea82 and 99% of the time there will be the same crack in perfectly working heads.
Posted 23 January 2014 - 11:07 AM
Welding cracks is bad idea DOSENT WORK bad news have had to cleanup so many bad head cars because of poorly done weldup jobs the problem is the casting is poorus and holds carbon bits the make the welds not bond properly and after heatup and cooldown cycles the welds give out guide falls down piston gos smack and you look for new engine. Subaru had some very good tooling to build those heads and I think was some very tech temp related work to put those seats in head.
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