Fuel Tank Mount

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swooshdave

swooshdave

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Anyone have any idea how to mount this tank?

Is it at all like the stock mount?

Fuel Tank Mount

Fuel Tank Mount

Fuel Tank Mount
 
Looks similar, normally a stud and some rubber washers to save the vibes getting through. Another good option is an Exhaust bobbin, that insulates the vibes and stops the stud pulling out the insert if its overtightened.
 
Just noticed that hole looks very big, normally a bit smaller than that! What diameter and threadf is it?
 
That looks similar to the Interpol tank arangement, check the thread first but on the interpol you screw a silencer mounting rubber into each of the 2 front holes, that gives you a rubber isolation plus a stud to fit the lower hole.
 
No thread, just a deep hole. Snapped the pics on the way to work. My guess is 3/4-1in diameter.
 
Weld in a home made bung. Drill and tap some AL solid stock to fit stock tank mount studs and you're done. I'm guessing $50 to pay the welder, $4 for a foot of 3/4" AL round bar and you can tap the round stock yourself, or you could use those rubber well nuts you posted above.
 

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Coco said:
Weld in a home made bung. Drill and tap some AL solid stock to fit stock tank mount studs and you're done. I'm guessing $50 to pay the welder, $4 for a foot of 3/4" AL round bar and you can tap the round stock yourself, or you could use those rubber well nuts you posted above.
Click to expand...

I'm thinking the more rubber dampening on an aluminum tank... the better.
 
The no welding method.... Looks similar to the late Matchless scrambler mounting arrangement. Find thick rubber bushings slightly smaller in diameter than the opening in the tank. You may have to stack a number on them to get the right depth for the hole in the tank. On the Matchless there is a long bolt which goes thru the rubbers with a nut on the bottom. As the nut tightens from below it compresses the rubbers which expand inside the tank hole to hold the tank in place. They have a flat washer welded on top (under the bolt head) which is cut and bent so that it digs down into the rubber and prevents the bolt from turning. If I get a chance to go to my storage hut in daylight I can take a picture.

Russ
 
ludwig said:
batrider said:
The no welding method.... Looks similar to the late Matchless scrambler mounting arrangement. ..
Click to expand...
Yes , but these things don't work very well .
I think a threaded bush , loctited or welded and silent blocks (like on the exhaust ) would be a better solution .
Click to expand...

Is that how you mounted your tank?
 
swooshdave said:
Coco said:
Weld in a home made bung. Drill and tap some AL solid stock to fit stock tank mount studs and you're done. I'm guessing $50 to pay the welder, $4 for a foot of 3/4" AL round bar and you can tap the round stock yourself, or you could use those rubber well nuts you posted above.
Click to expand...

I'm thinking the more rubber dampening on an aluminum tank... the better.
Click to expand...

You would utilize the stock mounting rubbers/stud arrangement. Tap the weld in alloy slug to accept the stock Norton piece. If it were my bike I would opt for the weld in method over using well nuts since gas tanks get heavy when full. I'm using a well nut to hold an alloy seat on a bracket I made and I don't even like that well nut there let alone on a gas tank.
 
Coco said:
swooshdave said:
Coco said:
Weld in a home made bung. Drill and tap some AL solid stock to fit stock tank mount studs and you're done. I'm guessing $50 to pay the welder, $4 for a foot of 3/4" AL round bar and you can tap the round stock yourself, or you could use those rubber well nuts you posted above.
Click to expand...

I'm thinking the more rubber dampening on an aluminum tank... the better.
Click to expand...

You would utilize the stock mounting rubbers/stud arrangement. Tap the weld in alloy slug to accept the stock Norton piece. If it were my bike I would opt for the weld in method over using well nuts since gas tanks get heavy when full. I'm using a well nut to hold an alloy seat on a bracket I made and I don't even like that well nut there let alone on a gas tank.
Click to expand...

Well nut. That was the word I was looking for. So you think two well nuts and a rubber band isn't the ideal holding mechanism for 5+ gallons of gas? Shocking! :mrgreen:

I don't disagree but I'll try it anyways.
 
Gino Rondelli said:
Just noticed that hole looks very big, normally a bit smaller than that! What diameter and threadf is it?
Click to expand...

Hole is .725in

I think I can use something like this.

http://www.mcmaster.com/#93495a431/=6clole

Fuel Tank Mount


Rivet Type
Rivet Nut
Rivet Nut, Nut Insert, or Rivet-Type Stud Type
Rubber-Insulated Rivet Nuts
Rivet Material
Neoprene
Rivet Finish
Plain
Insert Material
Brass
System of Measurement
Inch
Thread Size
5/16"-18
Rivet Material Thickness Range
.015" - .156"
Dimension B
.725"
Dimension C
.875"
Dimension D
.125"
Hole Size
.625" (5/8")
Specifications Met
Not Rated
Installation Instructions
Place bushing in hole and insert a machine screw. Tightening the screw causes the bushing to expand, securing the nut.
Note
Machine screws are not included.
Click to expand...
 
The Old Britts parts look like just the thing. Who made the tank, what do they say? Remember that the brackets aren't supposed to hold up the tank, just stabilize it.
 
bpatton said:
The Old Britts parts look like just the thing. Who made the tank, what do they say? Remember that the brackets aren't supposed to hold up the tank, just stabilize it.
Click to expand...

I think it came from Waldridge several years ago. I can check, I guess.
 
So I picked up some well nuts, I think they are shorter than the ones Old Britts uses. I had tried mocking them up at one point but it didn't seem to work, then I tried again using a spacer and I think I have it now. Before I didn't have the nut far enough up, but now the spacer works. The spacer will be replaced with rubber washers and I think it will all go together.

Fuel Tank Mount

Fuel Tank Mount


And video of me picking up the tank by one of the nuts. It's REALLY secure.

[video]http://www.youtube.com/watch?v=feOrce3FAw8[/video]
 
Hi Dave:
It is the same way my bartell tank is mounted.They send a rubber plug with a brass insert molded in.I made up a stud 3" long and threaded it in to the full length of the plug. I then used a washer and nut and tightened up the nut till the rubber plug expanded .You have to hold the stud well you tighten up the nut.It only expands a small amount.I had enough of the stud left to go through 4-5 norton rubber washers and go through the frame mount and put a washer and nut on.I opened up the first 3 washers so the locking nut goes through.That way the washers sit flush against the tank mount
Bruce
 
bchessell said:
Hi Dave:
It is the same way my bartell tank is mounted.They send a rubber plug with a brass insert molded in.I made up a stud 3" long and threaded it in to the full length of the plug. I then used a washer and nut and tightened up the nut till the rubber plug expanded .You have to hold the stud well you tighten up the nut.It only expands a small amount.I had enough of the stud left to go through 4-5 norton rubber washers and go through the frame mount and put a washer and nut on.I opened up the first 3 washers so the locking nut goes through.That way the washers sit flush against the tank mount
Bruce
Click to expand...

Any chance of a picture? I think how you describe is what I'm trying to accomplish. Do you remember if the well nut (what you call rubber plug) you have is really long? Mine's only about a inch tall.

I believe the tank was originally from Bartell.

Funny thing is the fuel tap areas aren't drilled through just tapped.
 
It looks like the standard P11, Matchless style mount. Rubber with through bolt, tighten mount nut and it expands the rubber to tighten in the tank holes. I don't have any pictures unfortunately.
 
Fuel Tank Mount

Just imagine the thick metal washers are going to be rubber ones. I may need more thickness here, but I'll know more when I fit it.

Fuel Tank Mount


Anyways, something like this.
 
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