Engine body
Fitting of cylinder head
Fig. 27. Clearance rocker - rocker shaft
Fig. 28. Fitting of valve stem seals
5.
Check that the rocker bearing surfaces are not out-
of-round worn.
1.
Press down new valve stem steals on the valve
guides.
Calculate the clearance between the rocker and
shaft. The clearance must not exceed 0.2 mm
Note: MD2030 and MD2040 have different seals
(.0078
in).
for the guides for the inlet and outlet valves.
Check that the ball pin�s spherical part is not defor-
med or worn. The threads should be undamaged
on the pin and lock nut. The locknut should be in
good condition.
The mating sphere of the rockers (against the val-
ve) must not be unevenly worn or concave. Adjust-
ment for minor wear can be made in a grinding
machine.
c
C
Note: MD2O10-2030. A new type of rocker (includ-
ing valve cap) has been introduced as from engine
number:
MD2010: 5101202984
MD2020: 5101308898
M D2030: 5101465653
00
Only the new type of rocker is available as a spare
part. If one or several of the older type of rocker
need to be replaced, all the rockers must be re-
placed at once, and valve caps installed on the
valve stems.
2
Fig. 29. Fitting of valves
1.
2.
4.
Valve lock
Valve spring retainer
Valve
3. Valve spring
5. Valve cap�
�
MD2040 and later versions of MD2O10, 2020, 2030
2.
The valves should be fitted in the correct order. Oil
in the valve spindles and fit the valve in its guide.
Place the valve spring and retainer in position and
press the spring together with a valve spring ten-
sioner. Fit the valve lock.
Note: Observe care when fitting the valves and
compressing the springs so that the valve stem
seals are not damaged.
Comparison between new and old rockers
1.
2.
3.
Earlier rocker
Earlier rocker tip
The new rocker
4. The new rocker tip
5. Valve cap
6. Valve
3
.
.
Fit the valve caps when all valves are fitted. (Ap-
plies to MD2040 and later versions of MD2O10,
MD2020, MD2030 (Please refer to the note below
item 5)).
4
Fit new plugs if these have been removed.
6.
Oil in the rocker mechanism and fit the different
parts.
3
1
| Categories | Volvo Penta Manuals |
|---|---|
| Tags | Volvo Penta MD2010, Volvo Penta MD2020, Volvo Penta MD2030, Volvo Penta MD2040 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.25 out of 5)
Marine readers have rated Volvo Penta MD2010 MD2020 MD2030 MD2040 Workshop Manual 4.3 out of 5.0 based on 4 product reviews. GOOD AND GOODER S=GOODEST. IS BESTER
jeg skal bruge manualen , til at samle min Volvo penta md 2030 igen.
Ö, hur dka jag veta om det är bra innan jag set produkten.
Pages 58 and 59 are missing from Volvo Penta MD2010 MD2020 MD2030 MD2040 Workshop Manual. I need only these pages at present!