one of the most important parts when reconditioning the motor is the copper rings which go under the wet sleeve. These rings are very important and must be replaced or the motor will keep blowing head gaskets. I was able to get everything except valves and the copper rings. I got a set from the girl I told you about with all the old parts.I may be able to get you a set if you can't get any yourself. ***Sure,please score at least one set,thanks!
Greetings,
the issue of cylinder liner gaskets is very critical. In fact Subaru made available a range of different thickness gaskets (1.01 - 1.14mm) to ensure the correct protrusion of the cylinder liner above the deck. Probably a new one of any thickness is better than an old one.
Other aspects as I remember were getting the latest head gasket that was available... there were many revisions... once again, probably not much choice left here these daze. Also there was a special sealing goop that Subaru sold to ensure a good seal.
And of course a very precise torque down/warm up/cool down/re torque procedure.
I don't know that Subaru had any different "stage" camshaft grinds, although there may have been variations for different markets, but there were some minor timing (overlap) changes over the few years that the engine was in production. Nothing to get too excited about though.
The main constraint on the engine performance is beathing. One "upgrade" is to cut and shut the existing manifold and fit something like a Weber 40DCN. This has an additional advantage of curing the dreaded RH fuel surge that the oem carbies suffer from.
Any EA63"S" engines in the USA?
in Historic Subaru Forum: 50's thru 70's
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