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Adjusting governor on D-601 engine

#1

A

amuller

Been quite a few years since I've messed with a Lawn Boy...
This one is a model 7227 (year=1977) with the D-601 engine. Centrifugal governor under the flywheel, and all-plastic carb.

Appears to me there is enough wear on the throttle shaft/housing--a lot of up and down movement--that the arm could go overcenter and stick. Is there any repair for this?

The guidance for adjusting the governor linkage calls for a special tool to put over the crank where the flywheel normally is, to position the governor on on the crank. Of course I don't have it, and no dimensions are given. Does anybody know the dimensions of this tool, or have another approach to checking the governor adjustment?

Thanks.


#2

J

jp1961

This will be difficult without the pictues in the L.B. repair manual, but I'll give you the text. "On D-600 engines (spiral-grooved nylon collar) turn the nylon collar CLOCKWISE as far as possible before proceeding (then it says see photos, I know this doesn't help you) With governor assembly in place, slip the tool onto crankshaft and press down firmly. Move throttle shaft down (close the throttle) and check the distance between the tip of the governor rod and the bottom of the governor lever. Bend lever up or down as neccessary along the diagonal crease provided to obtain a 1/8" gap." The 'ears' on the nylon governor collar must be to the right of the fingers on the governor lever. The LB part number of the governor tool is #604541. Hope this helps.

Jeff


#3

impalass

impalass

amuller said:
Been quite a few years since I've messed with a Lawn Boy...
This one is a model 7227 (year=1977) with the D-601 engine. Centrifugal governor under the flywheel, and all-plastic carb.

Appears to me there is enough wear on the throttle shaft/housing--a lot of up and down movement--that the arm could go overcenter and stick. Is there any repair for this?

The guidance for adjusting the governor linkage calls for a special tool to put over the crank where the flywheel normally is, to position the governor on on the crank. Of course I don't have it, and no dimensions are given. Does anybody know the dimensions of this tool, or have another approach to checking the governor adjustment?

Thanks.
Click to expand...
On one mower i put heat shrink tubing on the rod to stop the side play.


#4

A

amuller

jp1961 said:
This will be difficult without the pictues in the L.B. repair manual, but I'll give you the text. "On D-600 engines (spiral-grooved nylon collar) turn the nylon collar CLOCKWISE as far as possible before proceeding (then it says see photos, I know this doesn't help you) With governor assembly in place, slip the tool onto crankshaft and press down firmly. Move throttle shaft down (close the throttle) and check the distance between the tip of the governor rod and the bottom of the governor lever. Bend lever up or down as neccessary along the diagonal crease provided to obtain a 1/8" gap." The 'ears' on the nylon governor collar must be to the right of the fingers on the governor lever. The LB part number of the governor tool is #604541. Hope this helps.

Jeff
Click to expand...
Thanks!
I have the manual. What I don't know is the position the governor should be in (up/down on the crank). That's why I asked for the dimensions of the special tool or another way of getting things right.....

Alan


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