what size allen is used to take off the wrist pin access caps

14mm

If you can't find a cheap one (most people don't often run across large allen bolts), Harbor Frieght has a set of allen sockets that goes up to 17mm for like $20.

 

GD

If you can't find a cheap one (most people don't often run across large allen bolts)

not sure about EA stuff but on the XT6's they have a goofy bolt to secure part of the a/c compressor/bracket. you can toss some nuts on the threads, then flip it around to use it to get those allen heads off as it's the same 14mm.

Yeah - the block plugs though are often hard to remove - especially the one under the water pump .

 

If you have a welder, then you can do as Gary sugests but run a weld bead across opposite flats of the nuts the grind them flat and make a tool that way. We did that at work for a time till I got tired of using the makeshift tool and bought that HF set that goes to 17mm - we needed the 17mm for some really weird banjo fittings on some German equipment.

 

I don't know of any other large allen's on a Subaru - that XT6 thing you describe I've never seen on another EA.

 

GD

that XT6 thing you describe I've never seen on another EA.

gotcha, i thought it was XT6 specific but it's been awhile since i've worked on EA82 stuff.