Hi Guys,
So i've got a bike pump that i want to fit to my tank.
This is going to require cutting a bit hole in the bottom of the tank and then drilling the smaller holes for the bolts.
Only thing is that the tank isn't exactly thick metal, maybe 1-2mm, this doesn't seem thick enough to be tapping holes for the pump to bolt
to.
Any suggestions?
Only idea at the moment is get a much thicker plate welded onto the bottom of the tank and then tapping this?
Cheers,
Andy
I tapped my tank (probably 1 or 2mm aluminium) - it's not very satisfactory but it did do the job, so it might be OK (you'll need a bit of thread lock to make sure it seals). But yeah, welding something on would be better.
or make up a ring holding captive nuts to go inside the tank?
i thought of that but how would i get the ring inside the tank without cutting an even bigger hole?
A tube with a wide flange, sort of top hat shaped. Sealant and closed end rivets or self tappers.
Nige, i have no idea what you're on about!!!!
Ah, I've re-read your first post, you're not after an outlet pipe as I first thought so ignore my comment
As for a tapped ring, make it in two halves ??
What about using rivnuts? Memfast do a great tool and various size rivnuts...
Dave B
quote:
Originally posted by pekwah1
i thought of that but how would i get the ring inside the tank without cutting an even bigger hole?
problem with rivnuts is they dont sit flush so i won't get a seal on the pump
They do some very low profile heads so if there is a gasket I would think they would be ok... But point taken....
Dave B
quote:
Originally posted by pekwah1
i thought of that but how would i get the ring inside the tank without cutting an even bigger hole?
cheers guys, think i'll go with the horseshoe idea
What kind of pump is it? I just strapped my bike pump to a chassis rail and gravity fed it from the tank..
I had Martin Keenan, at MK engineering put a injected Fireblade pump into my tank a few years ago, worked very well, it even had a small sump built
into it
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