SOHC.co.uk Forums > CB350/400
engine
McCabe-Thiele (Ted):
--- Quote from: steven400/4 on November 14, 2020, 06:41:39 PM ---not been on the floor and yes thread gone on bolt and case not a happy chap i spent 8k building this bike with all new genuine parts that took 10 years to find now i,m trying to find some engine cases with the same letters on the bottom case so i dont have to work out and find some new shells again
--- End quote ---
Just reading this makes me anxious about the unknown happening. As others have said fix what you have if possible Trigger will no doubt have experience of such disasters and a way forwards.
K2-K6:
I thought more in this direction but with a bespoke spigot to fit a retapped case to effect a repair.
http://forums.sohc4.net/index.php?topic=86770.0
Cars routinely use a spacer plate for oil cooler take off with a screw in spigot that can effectively be "lost" in regard to spacing to fit an oil cooler feed into system too. The design principle is the interesting part as they're not size compatible.
There where also the same oil cooler kits made for these engine types when contemporary too.
You'd effectively need a bespoke sized spigot made to match an enlarged thread tapping in the case.
K2-K6:
Or something along the lines of this
https://www.amazon.co.uk/Thread-Repair-Bushes-Lambda-Sensor-M18/dp/B009AT4DS2
Can't remember the Honda thread size, but the concept is similar.
K2-K6:
These sort of taps available at decent cost, agian for size I'm not sure but you get the idea.
https://www.amazon.co.uk/Tap-Drill-M20-Type-126/dp/B00E3B0XBS
steven400/4:
thanks k2 k6 i ordered a tap yesturday before i saw your reply lol i have sent that terry a message asking what he thinks what i can do
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