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Tank Fitment (Read 171 times)
DieselBob
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Tank Fitment
03/15/17 at 07:44:28
 
Desiring a more vintage look in a tank that sits lower over the engine like the pre-war British bikes. Below is a 4.2 gal tank for a Horex Resident and readily available out of India in raw or chrome (with all the accompanying risks). By most standards, the Resident is an aesthetic felony. But, I like the tank. The challenge is, will the cutout in the tank align with the head and will the splayed opening at the back of the tank accommodate the tubes welded to the spline?
Anyone care to venture a guess?







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Dave
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Re: Tank Fitment
Reply #1 - 03/15/17 at 07:58:47
 
The Savage requires a pretty wide tunnel.  It has to clear the coil, the turn signal flasher, a couple of bulky electrical connectors, and the decompression solenoid.  The frame makes a very wide spread where the single backbone spreads into the two frame rails in the last 1/4th of the tank.

You might be able to make that tank work if you are willing to cut and modify the top frame rail on the Savage, and relocate some of the electrical components that are under the tank.

Here is what I had to do to a Suzuki GT550 tank to get it to sit down far enough on the frame to look proper on my bike - some have left the tank sit up a bit higher and it looks fine.  You can see how wide the tunnel is, and yet the decomperssion solenoid was eliminated as there wasn't room for it.



But in order to get it done low enough that the forks would work, I had to do this, and it took about 6 hours of heating, hammering and fitting:


Then once I got the tank to sit low enough, I made the front tanks mounts:


The tank sits lower and the head sits a bit up inside the bottom of the tank.


 
 
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verslagen1
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Re: Tank Fitment
Reply #2 - 03/15/17 at 08:42:23
 
Looks to me like the engine sits further back in the frame than the savage.
So the cutouts aren't going to match, if they are necessary.
Which will depend on how deep the tank sits on the frame.
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justin_o_guy2
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Re: Tank Fitment
Reply #3 - 03/15/17 at 12:19:20
 
Dave is
Tenacious D.
If you don't have a panel cutter with the hammer face attachment,you need one. And be forewarned, unbalanced loads can snap them off. A shaped piece of rod welded on the shank works.

aesthetic felony..
That's good..
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DieselBob
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Re: Tank Fitment
Reply #4 - 03/15/17 at 15:56:15
 
Thanks for the pics Dave. I like the outcome very much. And you may indeed be the originator of the oft-used phrase "If it doesn't fit, get a bigger hammer." That is one seriously molested tank.
I'll crawl back under that rock now and ponder the prospect of hammering my Matchless G3 tank  into submission. I wonder how big a hammer Dave used.......................................
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Dave
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Re: Tank Fitment
Reply #5 - 03/16/17 at 04:52:38
 
DieselBob wrote on 03/15/17 at 15:56:15:
I wonder how big a hammer Dave used.......................................



I had my torch and a Rose Bud tip, and I would heat up an area about 2" round,,,,,and start tapping.  When the red went away I heated and tapped again. About every 6th heating I had to stop and cool the backside of the tank with a wet towel as it was burning my lap.  I used a medium size ball peen hammer.....it was massaged into shape - rather than beaten!
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ohiomoto
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Re: Tank Fitment
Reply #6 - 03/16/17 at 08:29:37
 
I was able to fit my GT185 tank without any mods.  Of course it is tiny and holds no more fuel than the stock tank, but it looks cool.  Smiley
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Dave
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Re: Tank Fitment
Reply #7 - 03/16/17 at 08:49:29
 
ohiomoto wrote on 03/16/17 at 08:29:37:
I was able to fit my GT185 tank without any mods.


Several of the people who used the GT380/550 tank were able to fit without the blacksmith treatment - the tank ends up being about 3/4" higher than mine.  I had to lower the tank so that the bottom edge would be in alignment with the bottom of the RYCA seat pan.

Somebody that didn't hammer on the tank to get it lower....post a photo from the side so a comparison on height can be made.
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ohiomoto
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Re: Tank Fitment
Reply #8 - 03/16/17 at 13:23:25
 
That makes sense.  Since I was building my subframe, I matched it to my tank and fender.  Little easier than matching it to something built for another tank.
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DieselBob
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Re: Tank Fitment
Reply #9 - 03/24/17 at 20:49:58
 
Maybe I'll pick back through this pile and see if I can find something close.





And if not there, start on the barn.






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LANCER
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Re: Tank Fitment
Reply #10 - 03/25/17 at 03:57:25
 
Mmmm, what a fun place !
I like the look of that red Yamaha tank in the front of the 2nd photo!
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Dave
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Re: Tank Fitment
Reply #11 - 03/25/17 at 04:48:50
 
DieselBob:

Is that smorgasboard local to you?

I would like to come a scrounge around with you!
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DieselBob
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Re: Tank Fitment
Reply #12 - 03/25/17 at 10:10:22
 

Sadly, not mine.
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