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01 How it arrived
How the 186s arrived to me.
Date: 13/08/07
Owner: Darren
Views: 187
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02 Sump off
With the sump removed....plenty of yummy stuff in there
Date: 13/08/07
Owner: Darren
Views: 160
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03 Removing side plates
Removing the side covers
Date: 13/08/07
Owner: Darren
Views: 127
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04 Under the side plates
Under the side plates
Date: 13/08/07
Owner: Darren
Views: 142
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05 Cam timing
Camshaft timing. Note the 2 dots are to line up.
Date: 13/08/07
Owner: Darren
Views: 161
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06 Undoing cam retaining screws
There are 2 camshaft retain screws which need to be undone to remove camshaft
Date: 13/08/07
Owner: Darren
Views: 127
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07 Removing camshaft
Removing the camshaft. Treat it like it is made out of glass. Nice and gentle.
Date: 13/08/07
Owner: Darren
Views: 135
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08 Comparing cams
Comparing a factory cam with a 30/70 cam - factory is on the left
Date: 13/08/07
Owner: Darren
Views: 188
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09 Factory cam
Close up of factory cam lobe
Date: 13/08/07
Owner: Darren
Views: 126
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10 30 70 cam
Closeup of 30/70 cam lobe
Date: 13/08/07
Owner: Darren
Views: 127
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11 Undoing conrod nuts
Undoing big end nuts
Date: 13/08/07
Owner: Darren
Views: 121
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12 Barer block
Fully dissassembled block
Date: 13/08/07
Owner: Darren
Views: 128
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13 Disassembled 186s
All the bits that make up a 186s motor
Date: 13/08/07
Owner: Darren
Views: 127
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14 Excessive glazing
Excessive cylinder glazing. This requires ring ridge removal and ideally rebore. As block is already 60thou over a decent hone will have to suffice.
Date: 13/08/07
Owner: Darren
Views: 152
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15 Glazed bores with ring ridge
More glazed bores.
Date: 13/08/07
Owner: Darren
Views: 138
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16 Ever seen ring end gap like this
Has anyone ever seen ring end gap like this??? This compression ring came out of this 186s - they were all the same...incredible
Date: 13/08/07
Owner: Darren
Views: 158
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17 Correct ring end gap
Correct ring end gap. Between 10-16 thou is about perfect. Big difference huh.
Date: 13/08/07
Owner: Darren
Views: 161
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18 Cylinder hone
Cylinder hone used with slow speed electric drill and kero to hone glazed cylinder walls
Date: 13/08/07
Owner: Darren
Views: 132
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19 Honing cylinder
Honing a cylinder
Date: 13/08/07
Owner: Darren
Views: 143
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20 Honed
Freshly honed cylinder....yummy!
Date: 13/08/07
Owner: Darren
Views: 147
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22 Bearing kit
New bearing kit
Date: 13/08/07
Owner: Darren
Views: 121
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23 Valves stuck open due to sitting for years
Valve jammed open due to head sitting for years with no use. Must remove valves and clean up valves stems and guides. Also a valve lap and new valve stem seals a must.
Date: 13/08/07
Owner: Darren
Views: 116
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24 Collets in hand
Valve Collets removed
Date: 13/08/07
Owner: Darren
Views: 109
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25 Collets
Collets
Date: 13/08/07
Owner: Darren
Views: 100
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26 Removing valve springs
Removing valve springs - double in this case (Yella Terra head)
Date: 13/08/07
Owner: Darren
Views: 105
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27 Double Valve springs
Valve springs
Date: 13/08/07
Owner: Darren
Views: 105
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28 Exhaust valve
An exhaust valve
Date: 13/08/07
Owner: Darren
Views: 97
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29 Old valve with wear
Old valve with wear
Date: 13/08/07
Owner: Darren
Views: 107
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30 Valve leaks
Valve faces leaking as illustrated by the kero leaking
Date: 13/08/07
Owner: Darren
Views: 134
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31 Valve out
Valve removed
Date: 13/08/07
Owner: Darren
Views: 107
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32 Valve out 2
Date: 13/08/07
Owner: Darren
Views: 101
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33 Valve lapping tool and grinding paste
Valve lapping tool and valve grinding paste - for cutting and final finishing
Date: 13/08/07
Owner: Darren
Views: 155
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34 Valve in with valve stem seal fitted
Valve refitted with stem seal fitted
Date: 13/08/07
Owner: Darren
Views: 104
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35 Valve stem seal
Valve stem seal - inlet
Date: 13/08/07
Owner: Darren
Views: 98
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36 They are big valves
BIG valves on this head (50% larger than standard)
Date: 13/08/07
Owner: Darren
Views: 114
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37 HEI dizzy
Later model HEI distributor - see reapers and T's workguides for retrofitting instructions in the Holdenpedia
Date: 13/08/07
Owner: Darren
Views: 131
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38 Head gasket on
Head gasket fitted
Date: 13/08/07
Owner: Darren
Views: 140
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39 Head on
Refreshed head fitted - check out the size of them ports :-D
Date: 13/08/07
Owner: Darren
Views: 206
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40 Paint
Final coat of paint.....
Date: 13/08/07
Owner: Darren
Views: 166
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