reboren.
/ˈriːˌbɔː/, U.S. /ˈriˌbɔr/ Mechanics.
An operation in which one or more cylinders of an internal combustion engine is rebored, typically to repair damage from wear. Also: an engine that has had its cylinders rebored.
ΘΚΠ
society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [noun] > re-boring of cylinders
rebore1923
society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [noun] > other types
square motor1912
compression-ignition engine1926
square engine1930
stroker1948
rebore1967
1923 Trans. North-East Coast Inst. Engineers & Shipbuilders 39 124 The long unringed end of the oil-engine type of piston might by the time a cylinder re-bore was due, for a horizontal gas engine, become a very fruitful cause of pre-ignition.
1954 ‘Torrens’ Motor Cyclist's Workshop (ed. 6) xx. 126 When your piston is ‘worn out’, your cylinder is sorely in need of a rebore or..regrinding.
1967 J. Mills Low-cost Car Repairs iii. 75 The check is to determine whether a recon-set can be used or whether a rebore is needed.
1977 S. Wales Echo 18 Jan. (advt.) Exchange crankshafts, camshafts, short engines, rebores, pistons.
1998 Classic Cars Apr. 207/2 (advt.) Services include rebores, block skimming, head skimming, [etc.].
This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022).
reborev.
/ˌriːˈbɔː/, U.S. /ˌriˈbɔr/ transitive. To bore (an engine cylinder, gun barrel, etc.) again; to bore (a hole) again. Also intransitive.
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society > armed hostility > military equipment > production and development of arms > produce or develop arms [verb (transitive)] > processes in gun-making
stock1539
ranforce1547
newel1611
rifle1619
fortify1627
screw1635
chamber1708
reborea1792
flint1803
restocking1805
vent1828
percussionize1832
ream1841
percussion1844
restock1844
retube1846
revent1864
reline1875
sleeve1976
a1792 J. Smeaton Reports (1797) I. 212 An engine will go very well with its barrel a good deal chambered; in short, they are seldom rebored so long as a new leathered piston can be got in at the mouth so as to fill the chambered part.
1826 A. Anderson Diary 20 Mar. in G. Sellar Narrative (1916) viii. 124 There had been a light shower of it [sc. snow] during the night, and the air was soft. Holes were rebored, and there was a fine run of sap.
1881 F. J. Britten Watch & Clockmakers' Handbk. (ed. 4) 41 If the wheel is out of truth it must be set up in the lathe and re-bored.
1916 V. W. Pagé Automobile Repairing made Easy iii. 255 Care should be taken in reboring the cylinders.
1938 Foreign Service Feb. 3 (advt.) Don't buy rings or rebore if car wastes oil and gas.
1988 Pract. Motorist Mar. 28/3 Another..engine..had been inaccurately rebored, making the pistons a very tight fit.
2002 K. D. Stubbs Race to Front xi. 128 Artillery barrels must be periodically rebored and relined, or barrels must be replaced completely.
Derivatives
reˈboring n.
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1821 P. Hawker Diary (1893) I. 239 Weight of gun since reboring..83 lb.
1919 L. H. Morrison Oil Engines vii. 87 If the liner becomes worn, after it has had one reboring,..the withdrawal of the damaged liner is easily effected by the use of the draw-bolt.
1988 Early Mus. 16 465 (advt.) Rod Cameron has taken the plastic ‘Aulos’ baroque flute and modified it by reboring and adding a longer middle joint.
2004 W. E. Foley Wilderness Journey vi. 136 His skilled reboring of Captain Clark's small Kentucky rifle won him high praise from the gun's owner.
This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022).
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n.1923
v.a1792