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1Back to top Go down   Petrol Tank early signs of leak Empty Petrol Tank early signs of leak Sun Feb 19, 2012 8:11 am

88

88
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I 've been stripping the fairings off the LT for the first time - a bit if a steep learning curve no aided by previous owners not putting things back properly. The main aim is to repair a cracked side panel. Since I'll be fiber glassing the Radiator Surrround I might as well do the side panel at the same time.

A stong smell of petrol and a damp looking rubber attracted my attention...

Petrol Tank early signs of leak Img_0322

Petrol Tank early signs of leak Img_0323



Looking at the tank on the other side there appears to be some paint blisters forming in the same area

Petrol Tank early signs of leak Img_0324

Does this mean my tank is buggered or on the way out or has anyone got thoughts or experience on what to expect?

88KE

I only wanted to paint the bloody radiator grille Petrol Tank early signs of leak 178468

    

2Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 8:40 am

RicK G

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Springing a leak there is very common. I have fixed a few and have t tanks here and both leak there. The water and crud collect there as it's the lowest point.
I just sand the area back to the bare aluminium and the stuff I use to patch it is made by Permatex, it's a two part epoxy strip that is it comes in a strip with one side of the strip mixed with the other side by kneeding it. when it is mixed well it gets a bit softer and then you stick it to the aluminium and let it cure for a day or two and sets as hard as a rock. I was only today looking at the first tank I repaired and it is still good after 5 years. You gotta get the one for fuel tanks.
http://www.passionauto.co.uk/products/permatex-fuel-tank-and-radiator-repair-kit.html


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

3Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 9:05 am

Inge K.

Inge K.
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I would recommend Araldit epoxy as it`s having a thinner viscosity and penetrates better.
Marvelous stuff, used it for all kind of repairs over the years......
also engine covers that had holes scraped through due to accidents.

Petrol Tank early signs of leak Araldi10

Inge K.

    

4Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 10:27 am

88

88
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Thanks guys. An exterior patch repair should be ok so.
Inge, I wonder if that is the same product as "Araldite" here - looks very similar.

On the other hand that stuff on KFreak's link looks like handy goo to have in the workshop.
88



Last edited by 88KE on Sun Feb 19, 2012 10:31 am; edited 1 time in total (Reason for editing : Add text)

    

5Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 11:24 am

Inge K.

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88KE wrote:Inge, I wonder if that is the same product as "Araldite" here - looks very similar.
It is a whole of different kinds of Araldit for different use, it meant to be used
as adhesive....but I`ve used it to a lot of different kind of repairs over the years.

On the picture it`s the DIY fast curing, I`ve used DIY standard curing mainly
(blue packaging) as it have better mechanical properties (also used heat curing
when it have been possible).

19 years ago I used it on a kerosene tank inside the house, which was leaking
in the bottom due to corrosion.
And did think to myself, this is temporary untill I get a new one......not needed
so far.

Araldit

Inge K.

    

6Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 12:14 pm

BIG D

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Cool

That would be the Araldite Rapid then Inge, good stuff so is the stuff mentioned by K Freak we have used this to repair engine sumps and fuel tanks in the field version's of it can even be machined on a lathe, the success of any product is preparation.

BIG D

    

7Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 12:39 pm

brickrider

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Last Spring I sealed the interior of a m/c fuel tank with a Caswell product, with excellent results. Consequently I find myself wondering why folks recommend a repair to the exterior of the tank. Completely sealing the interior would preclude further leaks in other corners of the tank.
Does the fact that there is a fuel pump and related hardware in K100 tanks mean interior coating are not practical?


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Brickrider
1985 K100RS; brick red, of course!
    

8Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 12:57 pm

BIG D

BIG D
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Cool

"frost" www.frost.co.uk who are restore specialist's do internal coatings for motorcycles in a multi part kit which also seals leaking tanks, and puts a coating inside to protect the tank from the ravages of modern fuel as well as from the elements. I hope to look into this further as I believe brickrider has a point.

BIG D

    

9Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 2:23 pm

MT350Explorer

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[/quote]>I only wanted to paint the bloody radiator grille Petrol Tank early signs of leak 178468[/quote]

Keep the faith mate! I went to paint my radiator grille as well and have now embarked on an induction/ throttle body and coolant system rebuild plus a new exhaust and fittings. My tank is also ropey on the same places as yours - although no leaks yet, so i reckon I'll sand it gently back to prepare the surface and put some reinforcing epoxy stuff on it as a preventative.

I'm waiting for the point when I don't uncover any more things I 'need' to fix. We all have a line we're comforatble with, I guess mine is trying to get it safe, reliable and passably smart - can't be far away now!

Best
Dave

    

10Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 2:56 pm

sidecar paul

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Hi 88
I've read that ethanol disolves epoxy resin so I would look for a sealant that claims to be ethanol resistant. I assume that your petrol in Ireland has, like us, 5% ethanol. The Permatex stuff is specifically for petrol tanks, so that might be the best option.
Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

11Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 4:04 pm

Inge K.

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@BIG D wrote:That would be the Araldite Rapid then Inge,
???

    

12Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 4:15 pm

Inge K.

Inge K.
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@sidecar paul wrote:I assume that your petrol in Ireland has, like us, 5% ethanol.
Then, keep an eye on the rubber parts that come in contact with the fuel.
Especially the fuel pump mounting, these rubber parts in our old K`s isn`t
made for having a party 24/7.

Inge K.

    

13Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 6:06 pm

88

88
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>I only wanted to paint the bloody radiator grille Petrol Tank early signs of leak 178468[/quote]

We all have a line we're comforatble with, I guess mine is trying to get it safe, reliable and passably smart..Dave[/quote]

That's exactly what I'm aiming for Dave.

Thanks for all the input guys - I was leaning toward the Araldite (Araldit) until that last comment from Sidecar Paul. Now I have to do a bit of checking. I was also given a tin of Devcon Aluminium Putty by a Marine Engineer pal (He called me to look at his van coz I'm more experienced with small diesel engines than him! Petrol Tank early signs of leak 723598 ). It's very expensive stuff and he's used it at sea to perform permanent repairs and swears by it but he too saw the logic of using Araldite for a small repair.

Anyway I'm now reading up the removal proceedure for the fuel tank from (Zonenfile's) scanned manual. That's the bedtimne reading and tomorrow nights entertainment sorted!

88

    

14Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Sun Feb 19, 2012 7:24 pm

RicK G

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That Devcon is astounding stuff. Many years ago a race engine let go in a big way and I didnt have a spare at the time because of other failures and I used devcon to repair the crankcase where a rogue conrod had escaped in a hurry. I used those cases for many more races and they were still good when I sold the lot after I called it a day


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

15Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Tue Feb 21, 2012 4:33 pm

88

88
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Update....

with the tank emptied and off a couple of quick strokes of a wire brush blew a hole in it that took me back a bit ! There wasn't much more than the paint and laquer holding the gas in. Good job I kept poking at it or I'd have been in real danger of flambé-ing the old K....

Petrol Tank early signs of leak Img_0326

aprox 12mm long at the worst point and 9mm wide Adaldite wasn't going to get me out of this one. It was definitely a job for the Devcon.

The blisters on the other side were nothing more than a bit of surface oxidation where the paint had been chipped before.

After making sure I was back to good metal I waited 'til daytime to mix the goo. I keep a couple of offcuts of graninte kithchen worktop in the workshop for such jobs..it's invaluable

url=https://servimg.com/view/16818459/65]Petrol Tank early signs of leak Img_0327[/url]

I used a strip of zinc mesh (car body filler type) folded to the shape of the tank seam to bridge the gap and support the putty till curing started. The low temperatures weren't helping so I stuck the tank in this...

url=https://servimg.com/view/16818459/66]Petrol Tank early signs of leak Img_0328[/url]

it's an old GEC clothes drier/airer with an elemant and racks in it, from the '60's it's bout the same vintage as myself but it works well and I came up with the idea of using it to bake the brake disc after painting the other day....

"We" got kicked out of the house when SWMBO got home, owing to the stink of petrol and epoxy but it had all gone off nicely by then Smile .

So ready for priming (and baking) once she's gone to work tomorrow Twisted Evil

To borrow from Land Rover's marketing spiel "One life, Live it!"

I would have to add "One life, live it = One wife Livid!!"

Thanks for all the tips and help guys..OH, Inge I checked the rubbers in the tank too, all in great condition thankfully.

One job I'd like to do while the tank is off is repair the Hazard warning switch. There are no wires at all on the rear of the switch neither can I see a plug without another half hanging around. Does anyone know where the switch wires route and what colours I should be looking for?

88KE

    

16Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Tue Feb 21, 2012 5:43 pm

Crazy Frog

Crazy Frog
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88KE wrote:

To borrow from Land Rover's marketing spiel "One life, Live it!"

I would have to add "One life, live it = One wife Livid!!"

Petrol Tank early signs of leak 44271 Petrol Tank early signs of leak 723598 Petrol Tank early signs of leak 112350
88KE wrote:
Thanks for all the tips and help guys..OH, Inge I checked the rubbers in the tank too, all in great condition thankfully.

One job I'd like to do while the tank is off is repair the Hazard warning switch. There are no wires at all on the rear of the switch neither can I see a plug without another half hanging around. Does anyone know where the switch wires route and what colours I should be looking for?


Check at the bottom of this page: Electrical connectors


__________________________________________________
Petrol Tank early signs of leak Frog15Petrol Tank early signs of leak Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

17Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Wed Feb 22, 2012 5:34 am

BIG D

BIG D
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Cool

Nice job 88 now clean up and put away before she gets home Laughing

BIG D

    

18Back to top Go down   Petrol Tank early signs of leak Empty Re: Petrol Tank early signs of leak Fri Feb 24, 2012 12:43 pm

88

88
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The finished Repair....

url=https://servimg.com/view/16818459/74]Petrol Tank early signs of leak Img_0336[/url]

While I had it off I decided to investigate the cap which was spinning under the key and needed some strange manoevering with the key to open. With the barrell out I could see that one of the two little nibs on the bottom of barrel was corroded away and the plastic holes which the nibs sit into were damaged, hence the spinning. Meanwhile I have removed the barell and relaced the cap and I am carrying a circlip pliers which works well to open it.

I have found a cap with no key for €10 in a local breakers yard and I hope I can use it to repair my own.

88KE

    

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