pekwah1
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| posted on 28/12/13 at 10:26 PM |
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Fitting a fuel pump to the tank
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
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rodgling
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| posted on 28/12/13 at 10:47 PM |
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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.
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scimjim
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| posted on 28/12/13 at 10:53 PM |
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or make up a ring holding captive nuts to go inside the tank?
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pekwah1
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| posted on 28/12/13 at 10:58 PM |
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i thought of that but how would i get the ring inside the tank without cutting an even bigger hole?
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NigeEss
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| posted on 28/12/13 at 11:06 PM |
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A tube with a wide flange, sort of top hat shaped. Sealant and closed end rivets or self tappers.
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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pekwah1
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| posted on 28/12/13 at 11:08 PM |
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Nige, i have no idea what you're on about!!!!
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NigeEss
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| posted on 28/12/13 at 11:17 PM |
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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 ??
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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Dave Bailey
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| posted on 28/12/13 at 11:23 PM |
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What about using rivnuts? Memfast do a great tool and various size rivnuts...
Dave B
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scimjim
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| posted on 28/12/13 at 11:29 PM |
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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?
I've just made one but it's for an oval hole - presume yours is perfectly circular then? if so, make it in two halves as suggested.
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pekwah1
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| posted on 28/12/13 at 11:30 PM |
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problem with rivnuts is they dont sit flush so i won't get a seal on the pump
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Dave Bailey
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| posted on 28/12/13 at 11:32 PM |
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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
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mark chandler
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| posted on 28/12/13 at 11:53 PM |
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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?
Horse shoe shape then you can feed in, couple of blobs of sealant to hold in place while you bolt in the pump, job done.
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pekwah1
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| posted on 28/12/13 at 11:56 PM |
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cheers guys, think i'll go with the horseshoe idea
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coozer
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| posted on 29/12/13 at 12:04 AM |
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What kind of pump is it? I just strapped my bike pump to a chassis rail and gravity fed it from the tank..
1972 V8 Jago
1980 Z750
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PAUL FISHER
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| posted on 29/12/13 at 01:57 AM |
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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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