Ruggerini RD211 User Manual

37
COMPILER TECO/ATI ENDORSEDDATE
01.08.2003
REG. CODE
1-5302-620
MODEL N°
50902
DATE OF ISSUE
08-03
REVISION 00
XIII
68
69
70
71
RD210-211-218 RD270-278
ENGINE ASSEMBLY
Protective cap fitting
To prevent the entrance of dust and water which could block the
cylinder studs to the upper crankcase, insert protective caps on the
studs themselves (fig. 70).
To facilitate cap mounting, oil stud roots.
Insert on crankcase, under the rocker shaft pipes, plates for the
lubrication of the camshaft.
Cylinder mounting
The lower end of the cylinder is chamfered for piston ring insertion
(fig. 71).
The operation can be carried out easily by using a standard piston
ring compression tool (tool 00365R0770 and cod. 00365R0800).
Piston ring fitting
Fit rings onto pistons in the following order (fig. 68):
RD210-211
1.Chromed compression seal ring.
2.Torsional compression seal ring (with internal notch turned
upwards).
3.Expander oil scraper ring.
RD270-278
1.Chromed compression seal ring.
2.Torsional compression seal ring (with internal notch turned
upwards);
3.Torsional compression seal ring with external step turned
downwards.
4.Expander oil scraper ring.
Piston ring working position
RD210-211
Before mounting cylinders, rotate rings 120° opposite to each other
with the ends of the 1st compression ring in line with the gudgeon
pin axis.
RD270-278
Before mounting the cylinders, rotate rings (fig. 69) as follows:
First and third with the ends rotated at 15° in relation with the
gudgeon pin axis.
Second and fourth with their ends at 180° from the ones above.

Ruggerini RD211 Specifications

General

Brand	Ruggerini
Model	RD211
Category	Engine
Language	English