I cant find excatly where I got the clearances, but it was in a subaru service manual, what I wrote in my book
Rotor tips std 0.04 - 0.14 max 0.18mm
Outer rotor to body 0.02 - 0.07 max 0.15mm
Rotor height to bolt on cover (can measure this with a staight edge) 0.1 - 0.175 max 0.2mm
Mine was just under the std upper limit with no visable damage, so good enough for me
They just did the work mentioned and it was $475, I checked the journals myself
I just got the bill for my heads today, strip and clean, regrind/cut the valves, then reset the valve lash and install new stem seals on reassembly, and surfacing, boths head it was $1200
And Ive spent about $730 at rock auto for bearings, rings, timing kit, full gasket kit and a couple little extra bits!
Hope thats helps
Just like you, this is meant to be a wee project for me....I already have another EZ Subaru to drive around and this is just my weekend car so I don't mind if it's off the road.
....what are the clearances you checked in regard to your oil pump?
....did the machine shop check your crank, crank journals, hardness test on blocks and heads, crack test pistons, check bores etc?
....or did they only do what you said, blocks cleaned and decked with a light hone?
How much did your bill come to? I'm expecting the whole rebuild including parts and machine shop fees to come to a bit over two grand?
Very inciteful. Thank you very much for your advice. I am still keen to go ahead with a rebuild, reuse all parts except perhaps find a good set of used pistons. The local machine shop/EJ specialist (Tony Flynn) said it's worth throwing the pistons as far as you can and replacing them with used ones....even if they have known history. He said he seen denotation events cause damage to pistons that still pass the crack test. I think I will used OEM gaskets and seals (which I buy from machine shop) and a set of ACL duraglide bearings.
I think your right. Local engine builder said the later EJs have a 12mm pump. He says it's a must upgrade for older engines....go to Subaru and get a OEM 12mm pump off a newer engine, they bolt right onto old EJs....they like $700 though.
Im in the process of rebuilding my first ej20 at the moment, its not done so I cant say what Ive done works, Im mentally prepared for it to pop on the first drive =]
I ran a bearing, so I bought a donor motor and had the block cleaned and decked, with a light hone for the new rings,
Im sticking with the stock pistons and rods that were in it, just new bearings and rings, and a complete gasket kit, all parts are from rockauto, and Im reusing my stock oil pump because the clearances were ok,
Its just a project car so Ive been taking my time and its quite enjoyable, learning alot too,
Im up to the head rebuild now, but ive passed that part to a recon shop,
If i can help with any questions let me know!