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| | Posted : 27 Jun 2022 - 07:48 Post title : Leak under the seat/tank? | | | I've taken off the seat a few times trying to suss out the best locations for 'additional features' and noticed a bit of residue at the front of the airbox, there's a hose running through/under the bracket holding the rear of the tank and down the brake side of the airbox... I'm assuming this is some of that Evaporative Loss Control System thinger... Is there a 'standard' reason this would be happening, or is this hose stuffed?
Yellow section from this diagram..
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| Bender | | Chaac |  |  | | Reg. Date | : | 26/09/2010 | | Posts | : | 659 | | Location | : | Toowoomba, Queensland, Australia |
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| | Posted : 27 Jun 2022 - 08:06 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | That looks like the fuel tank vent hose
| BENDER Four wheels move the body. Two wheels move the soul.
Thunderbird 1600, Foran exhaust,cat eliminator,Twin T Bars, K and N filter, Led Headlight, Rivco driving Lights, Viking Bags,quick release sissy Bar,.Joker oil pressure Gauge met-cruise seat Dyno Tune + more
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| | Posted : 27 Jun 2022 - 08:32 Post title : Re: Leak under the seat/tank? (Re: Bender) | | | same thing, either goes to ground, or for those in CA, it goes to a canister to save a few leaves.
Have you ever noticed any residue there?
I'm fairly certain it's fuel, so not sure if it's a 'normal' oddity or a stuffed hose.
I mean, it is close to the airbox, maybe it's a primitive A/F enrichment technique Triumph was trying on?
Or the locating tab for the seat has pinched it..... I can't find a split, but I am loath to pull the tank unless it's truly required.
| | Post edited by StrippedChicken on 27 Jun 2022 - 08:32 |
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| Leethal | | Zeus | |  | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 29 Jun 2022 - 02:32 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | It may not be the hose, there is a reasonably common fault with the tank where a spot weld fails and causes a minor weep. It is located under that bracket that has the rear bolt through it. Mine had the leak, I cut the bracket off so I could mig weld around the plate that is spot welded on, then welded the bracket back on. To be certain that I had fixed the leak I also coated the tank interior with Redkote sealer.
| Experience is something you get just after you needed it 
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | Posted : 29 Jun 2022 - 04:01 Post title : Re: Leak under the seat/tank? (Re: Leethal) | | |
Leethal wrote:
It may not be the hose, there is a reasonably common fault with the tank where a spot weld fails and causes a minor weep. It is located under that bracket that has the rear bolt through it. Mine had the leak, I cut the bracket off so I could mig weld around the plate that is spot welded on, then welded the bracket back on. To be certain that I had fixed the leak I also coated the tank interior with Redkote sealer. |
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I'm not sure if I'm alone on this one, but I've never been a fan of welding an explosive receptacle....
Here's to hoping it's the far cheaper option of a shagged hose, but on a sub 10k km bike, I'm not liking my chances..
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| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 29 Jun 2022 - 21:47 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | There is a process that works, I am still here, the tank is quite accessible for flushing out with the fuel pump and sender assemblies removed.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | Posted : 30 Jun 2022 - 03:31 Post title : Re: Leak under the seat/tank? (Re: Leethal) | | | Oh, I don't doubt that.... I'm neither equipped, skilled in welding, nor really wanting to fork out the money for said work, but if it needs doing I'll have to..
did you have to do much regarding the paint? or did you just 'who gives a shit, it's underneath' and give it enough to inhibit rust?
Still hoping it's just a hose.... 
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| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 30 Jun 2022 - 22:22 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | The paintwork under the tank is pretty sketchy anyway, I just masked off the area and painted it in zinc black.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | Posted : 01 Jul 2022 - 01:23 Post title : Re: Leak under the seat/tank? (Re: Leethal) | | | Sounds good.
Is it just the gasket that needs replacing if I remove the pump etc for cleaning/welding/painting? or is there anything else that's cactus once removed?
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| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 01 Jul 2022 - 03:33 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | No, all rubber gaskets can be reused. The Redkote product is very good, it would probably seal the area on it's own if you want to chance it. Hopefully it isn't the problem.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | Posted : 01 Jul 2022 - 05:54 Post title : Re: Leak under the seat/tank? (Re: Leethal) | | | Just pulled the seat again and there's a bit more than I cleaned off last time and the smell of it lingering tells me it's fresh...
I wouldn't be so phased by it if I hadn't just forked out 3 small deer and a kidney for the fill.
What's the best way to drain it?
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| Bender | | Chaac | | | | Reg. Date | : | 26/09/2010 | | Posts | : | 659 | | Location | : | Toowoomba, Queensland, Australia |
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| | Posted : 01 Jul 2022 - 06:07 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | you will have to ride it or siphon it out.or you can remove the tank and then tip it out.
| BENDER Four wheels move the body. Two wheels move the soul.
Thunderbird 1600, Foran exhaust,cat eliminator,Twin T Bars, K and N filter, Led Headlight, Rivco driving Lights, Viking Bags,quick release sissy Bar,.Joker oil pressure Gauge met-cruise seat Dyno Tune + more
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| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 01 Jul 2022 - 06:42 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | |
StrippedChicken wrote:
Just pulled the seat again and there's a bit more than I cleaned off last time and the smell of it lingering tells me it's fresh...
I wouldn't be so phased by it if I hadn't just forked out 3 small deer and a kidney for the fill.
What's the best way to drain it? |
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Syphon is probably best.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | Posted : 01 Jul 2022 - 06:46 Post title : Re: Leak under the seat/tank? (Re: Leethal) | | | Good thing I found my tub of Jila Mints... really gonna take me back...
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| | Posted : 03 Jul 2022 - 22:36 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | Righto, looks like I'm in for some welding costs....
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| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 04 Jul 2022 - 03:46 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | It's probably coming from a failed spot weld under that plate. I cut the tongue off, mig welded all the way around the bracket then welded the tongue back on.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | Posted : 04 Jul 2022 - 03:49 Post title : Re: Leak under the seat/tank? (Re: Leethal) | | |
Leethal wrote:
It's probably coming from a failed spot weld under that plate. I cut the tongue off, mig welded all the way around the bracket then welded the tongue back on. |
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Do you think I'd get away with just a Red Kote job, or would this be likely to expand and tear?
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| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 04 Jul 2022 - 21:43 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | I was pretty impressed with the product, your call, do some research on it.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | Posted : 04 Mar 2024 - 22:17 Post title : Re: Leak under the seat/tank? (Re: Leethal) | | | Finally getting around to this, dropping it off to a mate on come Friday.
What paint can I use? Enamel? Regular rattle can affair? High heat etc?
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| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 05 Mar 2024 - 06:55 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | The repair should not effect the top coats of paint so any decent spray can paint should be fine. I used a zinc rich paint from a pressure can for anti rust properties.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| MotorMac | | Jupiter | |  | | Reg. Date | : | 29/08/2010 | | Posts | : | 1,790 | | Location | : | Nor Cal, United States |
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| | Posted : 05 Mar 2024 - 15:24 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | Triumph's touch up paint is acrylic lacquer. I believe factory paint is, too, but I don't know that.
As I recall from the old car painting days, you can put lacquer over enamel, but enamel on top of lacquer makes a mess.
Test a spot to be sure it dries properly.
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| | Posted : 05 Mar 2024 - 19:01 Post title : Re: Leak under the seat/tank? (Re: Leethal) | | |
Leethal wrote:
The repair should not effect the top coats of paint so any decent spray can paint should be fine. I used a zinc rich paint from a pressure can for anti rust properties. |
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Not entirely sure how he'll tackle it yet, I'm fairly sure he'll solder it, but I'll let him know there's a seam under the plate that could be the issue and see what he thinks.
MotorMac wrote:
Triumph's touch up paint is acrylic lacquer. I believe factory paint is, too, but I don't know that.
As I recall from the old car painting days, you can put lacquer over enamel, but enamel on top of lacquer makes a mess.
Test a spot to be sure it dries properly.
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Yeah, I remember that vaguely, however from the model building days. XD
Sounds like this one should do the trick.
Link Link
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| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 05 Mar 2024 - 22:28 Post title : Re: Leak under the seat/tank? (Re: StrippedChicken) | | | The factory paint is Two Pack acrylic enamel, clear over base. If it was acrylic lacquer it would be susceptible to damage from mild chemicals etc, this product was fazed out in the 80's for automotive purposes. Triumph may have changed to newer technology, water based spray paints. 
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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