Volvo Penta MD6A MD7A Workshop Manual

Pressure-testing the injectors

Overhauling the feed pump

37.

Check the spray pattern at an opening pressure

39. Exert force on the pump lever (see Fig.). If the

pump “squeaks” then it is in good condition. If it

does not, the diaphragm must be replaced. This

is done as follows:

of 180 kp/cm (2560 Ibf/in²). Also check that the

fuel jets cease simultaneously at all four holes

and there is no dripping afterwards.

Adjusting the opening pressure

38.

Adjust the opening pressure with adjuster

washers 1, which are available in different

thicknesses ranging from 1 mm (0.04”) to 1.95

mm (0.08”) at intervals of 0.05 mm (0.002”)

between each washer.

40.

Release the cover centre screw, lift out the strai-

ner 1 and clean it.

Screw apart the injector and replace the adjuster

washer with a thinner or thicker one depending

on whether the pressure has to be reduced or in-

creased. Screw the injector together again and

check the opening pressure and spray pattern.

Continue this procedure until results are satisfac-

tory.

Product Specification

Categories	Volvo Penta Manuals
Tags	Volvo Penta MD6A, Volvo Penta MD7A
Download File	Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step. - 44 pages
Document File Type	PDF
Copyright	Attribution Non-commercial

(2 votes, average: 3.5 out of 4)

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Volvo Penta MD6A MD7A Workshop Manual SKU UPC Model

seg seg on Jun 30, 2015.

good manual just what I needed

Loo-Dawgie on Mar 20, 2015.

Well i haven't read it yet but it's gonna help me out when I do.