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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).
Design position report listing modifications and their status for Bentley and 25/30 HP chassis.

Identifier  ExFiles\Box 161a\4\  scan0077
Date  29th May 1936
  
ITEM.    BENTLEY CHASSIS.    DESIGN POSITION.
Body with improved ingress and egress.    Completed 26.5.36.
Modification to water circulation between cylinder block and head.    " 14.5.36.
Packard type crankshaft balance weights - temporary scheme.    " 25.5.36.
Improved exhaust valve to overcome stretching.    In hand.
Modified lubrication to brake camshafts.    In hand.

25/30 HP. CHASSIS.

Standard thickness radiator with narrow matrix.    Completed 12.5.36.
P.III type switchbox applied to 25/30 HP. chassis.    " 29.5.36.
Modification to water circulation between cylinder block and head.    " 14.5.36.
Modification to crankcase breather connection.    " 18.5.36.
Oil supply holes in piston to feed gudgeon pin.    " 16.5.36.
One piece petrol pump bracket.    In hand.
Strengthened rear axle differential casing.    " 20.5.36.
Seapak noise insulated dashboard.    " 15.5.36.
Modified lubrication to brake camshafts.    In hand.
  
  


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