Ok..I may have [por 15] fuel tank problems

Hi

Ok, I have have spent the best part of a year restoring the 650 beast, this includes stripping and replacing most things on the carbs, engine etc. I also spent time [about a week] removing the rust from my fuel tank then using por15. I thought I had done a good job, The last part when I drained the excess, I may not have spent enough time and might have left some paint to pool!!!, cos when I put tank back on bike which was in the summer, I ran the bike around for a week or so, then would run rough so everytime I took the carbs off there were small bits of crap in the emulson tube and in the float bowls. I havn't tuned the bike yet thats my next job, I feel I need to revisit my tank and solve this! just wondered if anyone has any suggestions on solving my tank woes, I thought about getting some marine clean and flushing the tank a few times, but I really want to inspect the inside of the tank to see what sort of job I did.
If I have left areas to pool with por15 paint - is there solution?
Sorry if this is long winded, but this is really bugging me!
Thanks in advance
Daz

 

Most are going to the epoxy type tank liners. Lot of controversy over ethynol in gas disolving the latex based tank liners. Google Caswell's tank liner or Bill hirsh liner.

 

I had a extremely bad experience with those treatments I just sent it to a rad shop at the end best thing I did

 

POR15 is based on cyano-acrylate (read: superglue). When applied properly, and let cure, you can pour just about anything down in there and it won't dissolve, be it ethanol, bacon grease, Jagermeister, whatever. POR15 sells a special solvent just for that purpose.

The trick is to follow the instructions. Do not rush the job, and drain all the excess. It takes 4 full days to cure if it's nice and humid outside, otherwise - up to a week. I've done two tanks with this stuff. The first one was done almost 3 years ago, and still holding. I've not seen one tiny bit come off yet.

Did you get the complete motorcycle tank kit?

 

How is this sediment / particles getting past your paper inline filter?

I've made sediment bowls / water separators for my lawn mowers.
Something small and sturdy could be used on a bike to catch all the trash before the filter, it just requires more fuel line.

 

Hi Stereomind

Yes I bought the complete kit, I read and researched about por15 and remember spending a good week and a half cleaning the inside and getting it bone dry, I remember sloshing the paint around and turning the tank to reach all areas. I remember draining as much as I could out. Ok so at the moment the petrol runs clear but when I go to check the float bowls there is some tiny bits of sediment, its getting past 2 filters, man thats some tiny stuff!!!.
I feel like getting more of the marine clean[which is the first part of the cleaning process in the kit] and swilling out the tank again, but is this advisable??.
Every time I drain the tank, there isn't much sediment which makes me feel I have done a good enough job, but I am going to try and drain the small amount of petrol I hear sloshing around everytime I try and fail to get out, I thought about using a turkey baster and length of tubing and see what i get.
I have emailed por15 and explained what my concerns are, I just thought if I had pooled an area it would just go off and dry rock hard!.
Thanks for your help
Daz

 

I have a normal filter on the petcock and an inline one but not a paper filter ....would that do it?, I do have a paper one I could use though!!!

I will email chacal and see if he has something small!

Thanks
Daz

 

Paper covers rocks ! And debris.

 

Thanks I will replace my inline with a paper one and see if that stops the little blighters!!

Daz

 

I think the two of those combined could dissolve a diamond... it sure wreaks havoc on your stomach lining..

 

What color are the crud bits that end up in the bowls? Are they aluminum/silver color, like the liner?

 

Stereomind

I took the bowls off and the crud which isn't much is mainly brown but have spotted some greyish specs too.

I'm gonna clean the tank too and see what happens after I clean it, plus going to put an inline paper filter on for good measure.

I'll keep you posted with what crud comes out of the petrol tank!!.

Thanks

Daz

 

Could it possibly be sediment in the gas you got. Maybe you filled at a different fuel station than usual that just filled their tanks and mixed some tiny stuff up. The fact that its borwnish is the concern. I used por 15 on my tank and would recommend it to anyone with patience and an ability to follow instructions TO THE LETTER. It took a good hour to drain every extra drop from the tank by swirling it to pool near the petcock hole and then leaning it back and forth to run over the hole. This stuff is invincible if done right. and the paper filter is definitely the way to go. Used to have all sorts of stuff in my bowls with screen filters, nothing gets past the little paper ones and they are so cheap!

 

Can't remember how long I spent draining the excess liner but I know it wasn't an hour!!! Brown means rust right?, going to clean the tank with marine clean then completely dry. re cleaning the carbs, there were crud blocking some of the holes. I am preparing the paper filter and see what happens with a clean tank, fresh petrol, cleaned carbs and a paper filter to boot.
PS: If I find that the liners buggered I will hate myself forever!
I will keep you posted
Thanks
Daz

 

Yes, I assume brown is rust. And hopefully it was there before, because if you are getting rust out of the tank after lining it there is a SERIOUS problem. Such as you missed hitting spots in the tank with the lining solution. If the puddled por15 hadnt dried you would have silver bits everywhere. And once it dried in your jets I cant imagine you would ever get it out, short of dynamite or their special remover. Come to think of it, it might just withstand dynamite.

 

Ok quick update

Drained tank and inspected the sediment, there are tiny silver bits, and less brown bits, i have looked inside the tank and I have puddled it in an area, how bad I'm not sure, but doesn't seem to be bubbling or cracking, I'm talking to a guy from POR15 company for help.

I'm going to install a paper inline filter and see what happens but I fear the worst!.
Daz

 

Hey Daz...

Im not sure about this, you keep saying POR15... are you referring to the product line, or that actual product? because even the company doesnt suggest putting the actual product called 'por15' inside a fuel tank.

Use the product they suggest to use... US Standard Fuel Tank Sealer... or was this what you meant from the beginning?

Regards,

Chris

 

Good Luck with that liner. I am restoring mine very soon here.

 

You have made no mentiion of cleaning the petcock. Did you???