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CB750 Barn find project - First Timer
Rob62:
Small drill down the centre and a stud remover but will be tricky.... Or a more expensive but reliable method, take it to a wire eroding specialist.
Underdog1:
--- Quote from: Rob62 on June 17, 2018, 07:28:13 PM ---Small drill down the centre and a stud remover but will be tricky.... Or a more expensive but reliable method, take it to a wire eroding specialist.
--- End quote ---
Bit more persistence and I got it out with an easyout. Someone’s been in these carbs before as the two little screws which hold the needle in are mismatched on a few of the carbs with some of them being chewed up. My parts fiche has these down as m3x10 but they seem to be 2.5mm in dia. Will see what B&Q stock and possible replace them all with zinc coated slotted heads machine screws.
I read somewhere about these being loctited or even Peened in..? Sort of makes sense but when I’m rebuilding is it safe to leave as is because I’m going to be adjusting needle positions etc
Underdog1:
Got some new machine screws for the carbs, going to replace hem all with hex heads as no doubt I’ll be changing needle heights in the future a fair bit.
So last week I called the nearest radiator shop otoday me (hourish away) to ask what could be done about the fuel tank crud and he told me to bring It in. Drove all the way down only to be told he couldn’t do anything. Not quite sure what he was expecting to see as I explained in detail the situation, he took a quick look in with his torch and said three no access to clear the crap at the bottom out (obviously as it’s a fuel tank!). Said he had no solvents he could use as all the caustic soda stuff is outlawed. He suggested maybe blasting it.
Has anyone ever heard of the inside of tanks getting soda blasted? Obviously access would dictate only certain areas could be got at but I feel this is the last chance saloon for this tank. If I have no luck here I’ll have to look at getting another
Bryanj:
If it is that bad cut the bottom out of the tank, clean it out and get a rad shop to weld the bottom back in, used to be done a lot to do tank repairs for insurance companies
Underdog1:
--- Quote from: Bryanj on June 18, 2018, 04:34:43 PM ---If it is that bad cut the bottom out of the tank, clean it out and get a rad shop to weld the bottom back in, used to be done a lot to do tank repairs for insurance companies
--- End quote ---
Yeah think that’s got to be the next step, don’t particularly want to use the bloke at the rad shop I went to as he wasn’t very helpful. Super thin guage is outside my welding capabilities and should probably be tigged anyway so going I have an ask about locally
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