Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: Norniron on January 19, 2014, 04:41:55 PM

Title: Leaky tank
Post by: Norniron on January 19, 2014, 04:41:55 PM
I took off my carbs today to finally clean the emulsion tubes and an hour later job done.but then i discovered this.damn it.bottom left corner of the tank is starting to leak.
Title: Re: Leaky tank
Post by: billy192 on January 19, 2014, 05:22:24 PM
Ii had a leak in my Kawasaki S3 tank a tiny pin hole so I used POR 15, it has worked great. I did it 12 months ago and it is holding up ok.
BILLY
Title: Re: Leaky tank
Post by: Norniron on January 19, 2014, 05:40:46 PM
I used Petseal about 2 years ago.will give it another go
Title: Re: Leaky tank
Post by: Green1 on January 19, 2014, 06:25:57 PM
Don't use petseal it brakes down because of the methanol in the fuel

Mick
Title: Re: Leaky tank
Post by: Norniron on January 19, 2014, 07:13:58 PM
Thanks green
Title: Re: Leaky tank
Post by: LesterPiglet on January 26, 2014, 05:33:17 PM
Are you repainting the tank? My old S1 got a leak and I brazed it.
Title: Re: Leaky tank
Post by: Norniron on January 26, 2014, 08:36:32 PM
No shouldn't have to because the chrome strip should hide any marks.gonna give that por 15 a go.
But if it needs painted it wont be a big deal.
Title: Re: Leaky tank
Post by: 59viperman on January 26, 2014, 08:53:17 PM
 ;) my velo had a four inch crack in it [and I mean a proper crack] was told by an old boy use araldite, I was very sceptical to say the least but that was two years ago and no probs. trick is leave at least a week to go rock hard [ two would be better] then rub it down for paint. you cant even see it on mine.
Title: Re: Leaky tank
Post by: Norniron on January 26, 2014, 08:58:17 PM
Cheers viperman
Title: Re: Leaky tank
Post by: 59viperman on January 26, 2014, 09:45:16 PM
 :-[ ohhh!! I've gone all a quiver, that's the first time I have ever made a constructive contribution .  8) it wont last.
Title: Re: Leaky tank
Post by: Norniron on February 21, 2014, 07:29:35 PM
Do u have to go through the three part process when using this por15.
Or do u think theyre tryin it on to sell more products.
Title: Re: Leaky tank
Post by: Trigger on February 21, 2014, 07:36:04 PM
What are you going to do with that? You can not fix a leak with a tin of paint. Get the tank brazed, and then paint it.
Title: Re: Leaky tank
Post by: Norniron on February 21, 2014, 07:43:18 PM
What are you going to do with that? You can not fix a leak with a tin of paint. Get the tank brazed, and then paint it.
This stuff is supposed to be the dogs danglers
Title: Re: Leaky tank
Post by: Bitsa (Ralph Wright - RIP) on February 21, 2014, 07:46:14 PM
Heard all that b4.Any proof out there?
Cheers
Bitsa
Title: Re: Leaky tank
Post by: Norniron on February 21, 2014, 07:50:16 PM
Heard all that b4.Any proof out there?
Cheers
Bitsa
Just wot ive read on this forum,but im tryin to save repainting
Title: Re: Leaky tank
Post by: Bitsa (Ralph Wright - RIP) on February 21, 2014, 07:54:58 PM
Can understand that but the only way I know off is braze etc.Modern fuel is shite fracks most of the old ideas up.
Wish you well and I really do.
Cheers
Bitsa
Title: Re: Leaky tank
Post by: Trigger on February 21, 2014, 07:58:23 PM
If you have a hole. then that hole will have rust, and rust grows, eats metal. I used por 15 to paint a frame once. It took 3 weeks to dry. Put it in the oven and it went soft again. It was like putty and f**ked my spray gun. Good finish on the frame though.
Title: Re: Leaky tank
Post by: Bitsa (Ralph Wright - RIP) on February 21, 2014, 08:21:46 PM
Have no experience with por 15 so I would stick with what I know but thats 20 years ago.Thats why I love this site you all keep me up to date.
Cheers
Bitsa
Title: Re: Leaky tank
Post by: LesterPiglet on February 21, 2014, 08:32:14 PM
If it's, as you say not a big deal to paint, get it brazed. Then you know it's done properly.
I'm guessing this Por15 stuff is just like putting a big plastic bag inside your tank.
Title: Re: Leaky tank
Post by: Norniron on February 21, 2014, 08:47:11 PM
If it's, as you say not a big deal to paint, get it brazed. Then you know it's done properly.
I'm guessing this Por15 stuff is just like putting a big plastic bag inside your tank.
Ok lester you win.send me your tank too
Title: Re: Leaky tank
Post by: mickwinf on February 21, 2014, 09:14:23 PM
I used por15 on a 550. seemed to work ok, but sold bike so not sure of long term performance.
Title: Re: Leaky tank
Post by: fisjon on February 22, 2014, 07:44:04 PM
I used PQR on a tank for my cb650Z. I was meticulous with the prep and waited several weeks before filling with fuel. It lasted three weeks before is started to leak again. Not impressed!
In the end I spotted a new tank in David Silver and two side panels in Germany. I stomped on the old tank and bought the NOS ones. Cost £430. But when you deduct the cost of the PQR 15, the cost of the paint and add in the time to do it all without any guarantee that it will work or look good, it isn't so expensive.
It looked fab.
I learned the hard way and would go for a new tank ready painted up anytime.
Title: Re: Leaky tank
Post by: Norniron on February 22, 2014, 08:13:03 PM
I used PQR on a tank for my cb650Z. I was meticulous with the prep and waited several weeks before filling with fuel. It lasted three weeks before is started to leak again. Not impressed!
In the end I spotted a new tank in David Silver and two side panels in Germany. I stomped on the old tank and bought the NOS ones. Cost £430. But when you deduct the cost of the PQR 15, the cost of the paint and add in the time to do it all without any guarantee that it will work or look good, it isn't so expensive.
It looked fab.
I learned the hard way and would go for a new tank ready painted up anytime.
Well thats swayed it for me.thanks fisjon
Title: Re: Leaky tank
Post by: Trigger on February 22, 2014, 08:58:58 PM
What is PQR15? is that the same as POR15. Norniron, you have some paint to do your frame now ;)
Title: Re: Leaky tank
Post by: tom400f on February 23, 2014, 11:34:15 AM
May be you have read http://www.sohc.co.uk/index.php?topic=4758.0

I was only interested in painting the inside of the tank, not sealing it. However the kit I used came with a small bit of gauze that you were supposed to steep in the paint etc and a brush for applying it. May be this will only work for small holes, but as a product I think POR 15 paint is very good.
Title: Re: Leaky tank
Post by: fisjon on February 24, 2014, 05:35:10 PM
What is PQR15? is that the same as POR15. Norniron, you have some paint to do your frame now ;)

Aha! should have gone to Specsavers, I had to go and check the tin to make sure and it is indeed POR 15  :-[
Title: Re: Leaky tank
Post by: Trigger on February 24, 2014, 05:42:32 PM
I thought you had bought the Chinese copy PQR 15. ;)
Title: Re: Leaky tank
Post by: tom400f on February 24, 2014, 06:39:19 PM
Stands for Paint Over Rust, I believe (within reason, of course  :P)
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