Valve Seats (Fig. 57, 58)
1. Check the valve seat for damage and signs of incor•
rect contact.
2. If the valve seat is defective, the seat can be re-cut
to the dimensions shown.
3. After cutting new valve seats, lap the valve to the seat
using the lapping compound. After lapping, thoroughly
clean the valve seat and valve areas to remove any
traces of lapping compound. To verify that the valve face
is making proper contact to the valve seat, lightly coat
the valve seat area with Prussion blue, install the valve,
rotate the valve 1/4 turn while holding it down and then
bring it back to the original position. Remove the valve
and examine the valve seat. The valve seat should show
an even wear pattern from contact with the valve. Ex•
amine the valve. The dye should be evenly distributed
around the valve and in the center of the valve face.
Figure 57
Dimension of valve seat
Figure 58
Correction of valve seat
Cylinder Head Overhaul
Page 4 - 50
Groundsmaster® 300 Series
Product Specification
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:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
Document File Type | |
Publisher | toro.com |
Wikipedia's Page | Toro Company |
Copyright | Attribution Non-commercial |
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