FS_Line bored WO 1.7L Case w/ 2.0 crankshaft - Sold Options

[Jesco Reient]

I am offering for sale a 1971 1.7L case That I have line bored. I have cut the cylinder spigots to clean them up. The oil plugs have been removed and tapped for pipe plugs. As offered before, The price also includes a new set of +0.50MM Mahle main bearings for the case/crank combination offered as well.

The 1.7L WO case and the 2.0L crankshaft are +0.50MM on the main Bores, with a 0.5MM/0.5MM crankshaft and bearings.

This case is being offered at $925.00 plus shipping. Detailed pictures of the bearing surfaces are available upon request. Detailed sheets of the final measurements are available also. For those interested in purchasing this case. As a side note since it is getting towards the season that everyone wants to start building their engines to get out and drive I am also still line boring your cases as well.

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The actual package being offered.

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This case had a damaged dipstick, Which I repaired using the process which I have used succesfully many times.

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The 3-4 side of the case, notice the area under the cylinder spigots where the material is solid, this along with the better aluminum of the earlier cases is one of the reason these cases are highly sought after for a performance 2056 build. Very solid.


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The 1-2 side of the case.

As a reminder, A few years back when I was building my wife's 914, the motor needed to be line bored, now before semi-retirement I built Rolls Royce Merlin V-12 engines and large Curtiss Wright 18 Cylinder radial engines for unlimited airplane racing. The tooling available that I was looking at was in my opinion substandard for the result I wanted. Even well known Type IV builders regarding line boring the Type IV case suggested finding one that did not need to be line bored. So as I did with the aircraft engines when a challenge came along, I studied the process, looked at what was being done and what it was going to take to get the result I wanted to achieve. So I made a new boring bar out of very stable linear way tool steel I made it as large as possible allowing the best available 90 degree cutting plane, Hard chromed the wear areas, used the highest quality indexable carbide boring tooling available and built a new bar with tapered expandable colletts on each end to locate the bar accurately. The total run-out on each of the expandable colletts was less than .0001 thousandths of an inch. I have done several cases up to this point with excellent results. I thought possibly it was time to explain this, and perhaps you will all understand the reason for the pricing. I also made the tooling for cutting the cylinder registers while torqued to a plate so the torque stresses are correct for those areas also.

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The tooling laid into a case to show it's fitment.

This last year we developed a 1/2 stud that when installed in the case acts to pin the the case from movement in the bearing bore area. The process is a refinement of the way that Len Hoffman at Hoffman machine was doing his race cases. Len was very helpful during the planning of that design.

You can PM me at this website, or send me an e-mail at BellCobraIV@AOL.com

[bretth]

This looks like a great deal to build an engine from.

[914Sixer]

John did my case, crankshaft and rockers for my 2056. (IMG:style_emoticons/default/pray.gif)

[BeatNavy]

PM sent.

[BK911]

John did my case, crankshaft and rockers for my 2056. (IMG:style_emoticons/default/pray.gif)

Mine too!! Beautiful work.

[Jesco Reient]

PM sent.

I have replied back at Ya'
John

[Jesco Reient]

John did my case, crankshaft and rockers for my 2056. (IMG:style_emoticons/default/pray.gif)

Thank You! I try hard to make a good product. We are currently making the tooling to be able to line bore the 356 case as well.
John

[Jesco Reient]

John did my case, crankshaft and rockers for my 2056. (IMG:style_emoticons/default/pray.gif)

Mine too!! Beautiful work.

Thank you, Maybe my next trip to Knoxville I will get to meet up with you. Probably later summer early fall.
John

[Jesco Reient]

Sold to Rob, On it's way to McMark for the build.
John

[jd74914]

John,

If you wouldn't mind sharing, what kind of machine do you use to turn that boring bar and how do you hold the block? Your tooling looks awesome and I've been wondering since you first posted about it. (IMG:style_emoticons/default/smile.gif)