

| Subject: | Re: NVC: Type 1 case |
| From: | Bob Donalds |
| Date: | Fri, 18 Jan 2008 20:04:22 -0500 |
You may be right that the case is to pounded New cases are availible with fuel pump openings align boring is doable to .060ths with a 2.mm thrust the extrthicknesss of the thrust is on the flywheel side. When I thrust cut a case I trim the inside to make the inner thrust surface is flat then I can measure from that flat surface and make the cut on the outter thrust surface. I dont think align boring is a compromise at any size if its done right but the case can be so distorted that the cam will bind as the block heats up. For this reason I have a cam bore tool that trues the center cam bore so what does he do for a fuel pump Bob Donalds Bodton Engine ----- Original Message ----- From: "Mike S" <mikes@FLATSURFACE.COM> To: <vanagon@GERRY.VANAGON.COM> Sent: Friday, January 18, 2008 6:30 PM Subject: Re: NVC: Type 1 case > I'm in Michigan. > > The saddles are 65 mm dia, which I think is stock. He didn't bring the > crank home, but said it looks good. #1 bearing saddle is pounded, and > would probably be fine with a 0.5 oversize. The problem is the thrust > surface (and dowel pin hole) are really bad - the flywheel side of the > thrust surface is pounded in about 1.65 mm. I think thrust cuts only go > to 2.0 oversize, and must be centered (1 mm per side), so it's not > doable without welding (if that is even possible or desirable). > > It's a AJ case (AS21 - fuel injected, no fuel pump hole) case, so > finding one of those would be ideal. I was mistaken, it's a '75, not a > '74. > > He may just end up having to get a new case (and a fuel pump block > off). > > He bought this knowing there were engine problems - lots of endplay. > He's rebuilding it as a high school auto class semester project. > > > At 05:53 PM 1/18/2008, Mike wrote... >>Have you had it checked by a competent, experienced aircooled VW >>machinist? >>It may be fixable, depending on the current oversize, thrust area, >>total depth of the damaged areas of the bearing saddle, etc. Even the >>destroyed dowel pin and hole is repairable. There are many other >>areas that need to be inspected for case reconditioning, also, to >>determine if it's doable or junk. >> I have some cases here in MA, where are you? >> >>Mike B. >> >>----- Original Message ----- From: "Mike S" <mikes@FLATSURFACE.COM> >>To: <vanagon@GERRY.VANAGON.COM> >>Sent: Friday, January 18, 2008 4:54 PM >>Subject: NVC: Type 1 case >> >> >>>I'm asking for my son, who recently bought and is restoring a '74 >>>Beetle. His #1 bearing spun. >>> >>>Anyone have a decent AS21 or fuel injection (late AS41) Type 1 case >>>for >>>sale, relatively cheap?
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