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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Dynamometer test report for engine 8-EAC-11.

Identifier  ExFiles\Box 69\3\  scan0324
Date  1st October 1925
  
X8770
8-EX - DYNAMOMETER TEST.

Engine No. 8-EAC-11.
Axle No. 15 X 52.
Cap. 25.00/25.00 [handwritten] cu. ins. [/handwritten] mins. Nos. 2 and 4 cylinders.
Cons. P. 53 pts/hr.
Cons. W. 3 min 17 secs. 5 gallons at 80°C.
Lub. at 30 lbs.
Axle - passed.
Gears -
Miles - 100.
1st. gear - slips out under load about 200 lbs.
2nd. gear - 380.
3rd. gear - 256.
Air temp. 1 ft. from radiator 23.5°C.
" " at carburetter intake 40°C.
Bar. 769 m/m 9 HP. at 2000 r.p.m.
Mag. and Batt. 1/8" B.M.L.I.
Engine freedom - good.
Oil consumption during 100 miles test 1 1/2 pints.
.020" tappet clearance.

I.O. I.C. E.O. E.C.
21° 36 1/2° 38° 5°
A.T.D.C. A.B.D.C. A.B.D.C. A.T.D.C.

Lubrication of cyl bores at 1250 } bores 1,5 & 6 very heavy.
" " " " " 1500 }
" " " " " 1750 } remainder heavy.
" " " " " 2000 }
" " " " " 2500 }
" " " " " 2750 }

contd :-

[Watermark]
BOND
  
  


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