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I believe the reason they did that is if you have an engine case that has been through a traumatic event, like really bad bearings or worse yet, overheating, then align boring may be a short lived solution with stresses and warpage still present in the case. When given an random case you may have no indication what its really been through with overheating. When I got mine bored I knew it was a solid 87Kmi case that hadn't been overheated, so I felt it worth while, I wouldn't have just grabbed a random case... the first engine in my Squareback was that way and combining it with JC Whitney hot rod parts made for a very short lived engine. Keith Top Notch Restorations topnotch@nycap.rr.com 71 Squareback 65 Notchback "El Baja Rojo" 65 Squareback "Eggcrate" 87 golf "Winterat" 93 RX7 "Redstur" -----Original Message----- From: William Bold [mailto:wtbold@hotmail.com] Sent: Saturday, June 03, 2006 5:52 PM To: type3@vwtype3.org Subject: Re: [T3] Number 4 issues.. Yes, you're right, the milage is pretty good . . . still, if it's any indication, VW stopped "reconditioning" cases by line boring very early on -- certainly they had THE BEST machining capability, and found it was not practical to restore cases that had "grown" out of line. ----- Original Message ----- From: "Keith Park" <topnotch@nycap.rr.com> To: <type3@vwtype3.org> Sent: Saturday, June 03, 2006 11:45 AM Subject: RE: [T3] Number 4 issues.. >I dunno... 101K hard miles and still tickin on an .020 case. Still good > oil pressure too, I think it really matters who does it and what kind of > equipment they use. > > Keith > > > A line-bored case will never provide the precise alingment of the > crankshaft > > that is required for long engine life. > Not addressed is what type of carburation/fuel injection is being used. > ? > >> In response: >> It might have been a case failure, but I don't believe so. The >> compression was 7.65.1, the oil was 20/50 summer, 10/40 winter. The oil >> temp and cylinder temps were under constant surveillance >> >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> >> > >