Engine body
MD2040: Place the expander (2, Fig. 52 on page
to the oil scraper rings in the piston ring groove.
38)
Check that the ends on the expander do not over-
lap each other. Fit the top scraper ring (1) over the
the expander. Put in one end of the ring in the
groove and hold it in place with your thumb. Push
the ring in position with your other thumb.
Fit the lower scraper ring (3) in the same way.
Fig. 53. Number marking on connecting rod and cap
Check that the scraper rings run easily in both di-
rections and that the ends on the expander and the
rings are in the correct position (Fig. 52).
3.
Check that the marking on the piston top, alt. in the
piston and on the connecting rod, correspond with
Fig. 53.
Use a piston ring compressor and fit the piston with
connecting rod in the respective cylinder, beginning
with cylinder No. 1 (first).
Note: The connecting rod with the lowest number
should be fitted first (to cylinder No. 1) and subse-
quently the connecting rod with the highest number
closest to the flywheel.
The connecting rod should be turned with the mark-
ing (number/colour marking) turned "towards the in-
jection pump" (camshaft side). The arrow on the
piston top alt. at the gudgeon pin hole should there-
by point forwards.
Fitting of piston in cylinder
Note: After replacing a connecting rod, piston or gudg-
eon pin the weight difference between the connecting
rod complete with piston and piston rings must not ex-
ceed 10 g (0.35 oz) between the different cylinders.
4.
Fit the bearing cap and tighten the connecting rod
screws. See "Technical data" for tightening torque.
Note: The main bearing cap should be fitted so that
the number/colour marking on the crankshaft and
cap correspond (Fig. 53).
Undamaged connecting rod screws do not need to
be changed and can be re-fitted.
1.
Lubricate the piston and piston rings with engine oil
and turn the rings so that the oil penetrates the pis-
ton ring groove. Turn the piston rings so that the
piston ring gaps are divided by 900 from each other.
Note: Make sure that no piston ring gap is posi-
tioned opposite the piston bolt or at right angles to
it.
MD2040: Check that the ends on the expander and
scraper rings are in the correct position (Fig. 52).
2.
Place the bearing cups in their positions in the con-
necting rod and cap. Check that the hole in the
bearing cups comes opposite the hole in the con-
necting rod. Oil in the crank pin with engine oil.
39
| Categories | Volvo Penta Manuals |
|---|---|
| Tags | Volvo Penta MD2010, Volvo Penta MD2020, Volvo Penta MD2030, Volvo Penta MD2040 |
| Download File |
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| 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!