Subaru Enthusiasts Car Club of the Sierras - View Single Post

Dean · 2009-01-16, 08:15 AM

I think we have at least two members who work at machine shops, and other's who have dealt with other shops locally.

I know about Scott's experience with Aims, but not sure what the resolution/root cause was.

Not necessarily looking for a hook up, but not rejecting one either.

Just looking for a shop that I can trust with reasonable prices.

What I have:

'04 STI 100K long block mostly stripped down. Valves still in heads, rods still on crank at the moment.

The motor ran fine but ate/spewed oil under load when removed. My untrained eyes show only worn rings and ring grooves.

At minimum, I am looking to have the parts inspected by someone who knows something to determine next steps. Parts to be reused will need a good cleaning.

A cylinder bore/hone and new pistons/rings may be all it needs. Would likely want it balanced and maybe blueprinted and short block assembled.

Forged or cast pistons? CP. JE, other? Top/skirt coatings? Gapless ring(s)?

Depending on budget, might be interested in larger valves and upgraded springs/retainers, porting and polishing. A valve job requires valve lash/bucket adjust/swaps, right?

Or, just replace heads with Cosworth. Anybody know what the difference between Euro/JDM and US Cosworth Cams is? I have yet to find technical description of the differences.

I can't find any compelling reason to swap rods/crank unless they are out of tolerance. Anybody think of a reason? New bushings/bearings/seals make sense though I assume.

Also, what is the preferred oil pump these days? There appear to be a bunch of choices. Any other water pump options?

All timing idlers and belt obviously get replaced since they have 100K on them.

What have I missed, and who to use?

2009-01-16, 08:15 AM	#1
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	Machine shops & STI engine rebuild... I think we have at least two members who work at machine shops, and other's who have dealt with other shops locally. I know about Scott's experience with Aims, but not sure what the resolution/root cause was. Not necessarily looking for a hook up, but not rejecting one either. Just looking for a shop that I can trust with reasonable prices. What I have: '04 STI 100K long block mostly stripped down. Valves still in heads, rods still on crank at the moment. The motor ran fine but ate/spewed oil under load when removed. My untrained eyes show only worn rings and ring grooves. At minimum, I am looking to have the parts inspected by someone who knows something to determine next steps. Parts to be reused will need a good cleaning. A cylinder bore/hone and new pistons/rings may be all it needs. Would likely want it balanced and maybe blueprinted and short block assembled. Forged or cast pistons? CP. JE, other? Top/skirt coatings? Gapless ring(s)? Depending on budget, might be interested in larger valves and upgraded springs/retainers, porting and polishing. A valve job requires valve lash/bucket adjust/swaps, right? Or, just replace heads with Cosworth. Anybody know what the difference between Euro/JDM and US Cosworth Cams is? I have yet to find technical description of the differences. I can't find any compelling reason to swap rods/crank unless they are out of tolerance. Anybody think of a reason? New bushings/bearings/seals make sense though I assume. Also, what is the preferred oil pump these days? There appear to be a bunch of choices. Any other water pump options? All timing idlers and belt obviously get replaced since they have 100K on them. What have I missed, and who to use? __________________ I am a Commodore PET --- Now get off my lawn you kids... Last edited by Dean; 2009-01-16 at 01:11 PM.