Jan 2013
Panhard Cylinder Liner Rebore Update 9
26/01/13 19:54 Filed in: Panhard Engine
Now that I can bore the cylinder liners, I need to make a jig to hold the liners whilst they are being honed. If you use an annular ring clamp, a dummy cylinder, this will always squeeze the liner, and cause distortion,which is exactly want you don’t want.
![flexible](liner_clamp_honing.png)
![flexible](panhard_liner_hone_jig.jpg)
To get around this problem I have made an axial clamping system that uses the original abutments on the external faces of the liner. I drew the parts on the computer, and then had them laser cut from mild steel plate. After a few moments on the lathe, they looked like the sketch above, and a quick test with a previously machined liner and some oversize M12 screws, proved the clamping was secure and didn’t affect the internal bore diameter.
![flexible](liner_clamp.jpg)
![flexible](clamp_liner.jpg)
Hopefully, I should get the honing stones from the USA this week, and then I can transform the old worn cylinders in Brian’s engine, into perfectly machined and honed oversized replacements, that match the new pistons.
![flexible](liner_clamp_honing.png)
![flexible](panhard_liner_hone_jig.jpg)
To get around this problem I have made an axial clamping system that uses the original abutments on the external faces of the liner. I drew the parts on the computer, and then had them laser cut from mild steel plate. After a few moments on the lathe, they looked like the sketch above, and a quick test with a previously machined liner and some oversize M12 screws, proved the clamping was secure and didn’t affect the internal bore diameter.
![flexible](liner_clamp.jpg)
![flexible](clamp_liner.jpg)
Hopefully, I should get the honing stones from the USA this week, and then I can transform the old worn cylinders in Brian’s engine, into perfectly machined and honed oversized replacements, that match the new pistons.
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