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K1 full restoration begins
WestYorkshireBiker:
--- Quote from: Trigger on August 12, 2020, 11:25:32 PM ---Any markings that look like these
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I'll check on Friday but thanks for the info.
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AshimotoK0:
These are the two Service Bulletins you need ..they came originally from BryanJ..... Why Honda never ammended the main Shop Manual with this information beats me. My original '69 diecast crank had the Japanese chracaters stamped on the con-rods but yours are something different.
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WestYorkshireBiker:
--- Quote from: AshimotoK0 on August 13, 2020, 08:40:16 AM ---These are the two Service Bulletins you need ..they came originally from BryanJ..... Why Honda never ammended the main Shop Manual with this information beats me. My original '69 diecast crank had the Japanese chracaters stamped on the con-rods but yours are something different.
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Anyone know if the tap size for cylinder head studs is M7(or8??) * 1.25 pitch. Need some taps as one snapped off and needs TLC! Hoping to be able to drill / tap out as it's too far gone.
Failing that's what's best helicoil, vcoil or something else. Thanks.
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Trigger:
They are M8 X 1.25.
Why are you trying to take them out ? Leave them alone or you will be looking for a engineering firm that has a spark eroder ( EDM machine ) to remove the broken bits.
Some of these stud holes can not be heli-coiled as they are a oil way for oil to be feed to the head ;)
WestYorkshireBiker:
--- Quote from: Trigger on August 28, 2020, 05:14:42 PM ---They are M8 X 1.25.
Why are you trying to take them out ? Leave them alone or you will be looking for a engineering firm that has a spark eroder ( EDM machine ) to remove the broken bits.
Some of these stud holes can not be heli-coiled as they are a oil way for oil to be feed to the head ;)
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Thanks. Replacing as the engine has been split and sat in a barn exposed for God knows how long and they have seen better day tbh.
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