Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Quarterly complaint report detailing issues with clutch slips, dynamos, and exhausts.

Identifier  ExFiles\Box 130\1\  scan0186
Date  8th February 1935 guessed
  
- 4 -

CLUTCH SLIPS.
25 HP. PH.II. TOTAL. GRAND TOTAL. REMARKS.

December Quarter.
C.C. 83
C.P. 12
16
6
99)
18)
117
Slipping is often due to oil on the fabrics. Steps have been taken to delete automatic clutch spigot lubrication on 20/25 HP. cars. Depot Sheets Hd.{Mr Hayward/Mr Huddy}185, Hd.{Mr Hayward/Mr Huddy}196 and Hd.{Mr Hayward/Mr Huddy}205. Pressure ring serrations are being modified to prevent binding. See Depot Sheet Hd.{Mr Hayward/Mr Huddy}242. Depot Sheet Hd.{Mr Hayward/Mr Huddy}254 describes treatment for clutch slip.

Previous Quarter.
C.C. 104
C.P. 14
22
9
126)
23)
149

Six Months.
213
53
266
266

DYNAMO COMPLAINTS.

December Quarter.
C.C. 30
C.P. 5
7
3
37)
8)
45
These are mainly noisy ball races. Roller bearing now being fitted at one end of armature to replace ball bearing and a reduction in these complaints is anticipated. Voltage control on 20/25 HP. and 40/50 HP. should reduce complaints of undercharging etc.

Previous Quarter.
C.C. 24
C.P. 3
11
1
35)
4)
39

Six Months.
62
22
84
84

TOTAL EXHAUST COMPLAINTS.

December Quarter.
C.C. 19
C.P. 17
51
24
70)
41)
111

Previous Quarter.
C.C. 22
C.P. 9
34
19
56)
28)
84

Six Months.
67
128
195
195

EXHAUST MANIFOLD CRACKED OR BROKEN.

December Quarter.
C.C. -
C.P. -
1
1
1)
1)
2
Early 20/25. - Exhaust manifolds with cooling fins are now available. No failures of this type yet reported. Depot Sheet Hd.{Mr Hayward/Mr Huddy}229. Ph.II. - Flange bosses now thickened up to prevent cracking.

Previous Quarter.
C.C. 2
C.P. 2
1
1
3)
2)
5

Six Months.
4
3
7
7
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙