Crankshaft Bearings (Fig. 68, 69)
1. Measure the crankshaft for “run-out” (bend). Mount
the crankshaft in a pair of V-blocks (or live centers) and
use a dial indicator to measure the run-out in the crank•
shaft. The maximum allowable crankshaft run-out is
.0012 inch (0.03 mm).
2. Check the crank journals and crank pins for damage
such as galling, seizure, etc. If journals or pins are
seriously damaged they may be reground and over•
sized bearings installed. The main bearing and connect•
ing rod bearing oil clearances may be measured with a
micrometer or Plastigauge. Crankshaft oil clearances
are: Journal, 0.0039 inch (0.10 mm); Crank pin, 0.0059
inch (0.15 mm).
Figure 68
NOTE: When using Plastigauge to measure the clear•
ance between the crankshaft and its bearings, install the
crankshaft into the cylinder block, place a piece of
Plastigauge onto the crank pin or journal, and torque the
bearing cap (with bearing) in place. DO NOT TURN THE
CRANKSHAFT WHEN PLASTIGAUGE IS IN PLACE SINCE
THE PLASTIGAUGE WOULD BE DESTROYED. Remove
the bearing cap and measure the width of the Plasti•
gauge to determine the clearance. If the oil clearances
exceed these amounts attempt to install a new bearing
to reduce the clearance. If installing a replacement
bearing does not reduce the clearance to within toler•
ance the crankshaft must be reground and an oversized
bearing installed.
Figure 69
Timing Gears (Fig. 70)
1. Inspect the idler gear, fuel injection pump gear, cam•
shaft gear and crankshaft gear for wear or damage.
Replace these gears if defective.
Figure 70
Cylinder Block Overhaul
Page 4 - 56
Groundsmaster® 300 Series
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro Groundsmaster 300, Toro Groundsmaster 328 D, Toro Groundsmaster 92801SL |
| Download File |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
(2 votes, average: 5 out of 5)
Lawn and Garden readers have rated Toro 92801SL Rev I Groundsmaster 300 Series Groundsmaster 328 D Service Manual 5.0 out of 5.0 based on 2 product reviews. Need 328D. Manual pdf. Will rate after finding manual
t has been a very reliable machine but getting parts is hard and not cheap to buy , generic parts has been cost effective and reliable , i am unable to get a wiring circut diagram for this unit as most problems are electrical problems