petrol tank sealer

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stuffedpike20
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petrol tank sealer

Postby stuffedpike20 » Fri Sep 25, 2020 7:02 pm

Has anyone tried petrol tank sealant?
If so, how do you protect the filter in the tank from getting covered in sealant?

Thanks, John.

philthehill
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Re: petrol tank sealer

Postby philthehill » Fri Sep 25, 2020 9:19 pm

Just been reading an article relating to petrol tanks, sealers and ethanol.
Make sure that whatever sealer you use it is not effected by ethanol.


stuffedpike20
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Re: petrol tank sealer

Postby stuffedpike20 » Sat Sep 26, 2020 5:38 am

Thanks Phil.
Most of them claim to be ok with ethanol, additives etc; but I am not sure how you keep the filter protected from sealer when you are sloshing the sealer around.

philthehill
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Re: petrol tank sealer

Postby philthehill » Sat Sep 26, 2020 8:12 am

I am of the opinion that you would not be able to splash the sealer around the tank without it getting onto the pickup filter.

It is about time that the Morris Minor fuel tank manufactures incorporated the ability to remove the pickup pipe and filter from the tank.

I have included below a link to the ESM large capacity tank which shows a picture of the tank with the lid removed. I suspect that the standard tank has a similar filter location and pickup arrangement.

https://www.morrisminorspares.com/fuel- ... ng-p830647

You can see how difficult it will be not to splash the filter.


taupe
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Re: petrol tank sealer

Postby taupe » Sat Sep 26, 2020 10:48 am

hi ...If your tank has holes from the inside then please replace it as it is risky having a leaking tank. Tank sealers are in my experience nearly as useless as tin pellets for your petrol tank.......the sealant almost always pools in great big lumps and as you have realised also are great at blocking outlets or internal filters....and then the ethanol turns it into a gooey mess despite ethanol proof claims. :evil:

If its just loose rust in there a treatment with Oxalic acid ... soaking/ swilling for a week is your best bet to remove all of the rust leaving it looking like new in there and this should not damage your filter...around £10 per kg on ebay...1/2 kg will give a good strong solution which you can keep for further de-rusting duties afterwards....

You can use Citric acid but oxalic is better..

If you must use sealant then why not first flush until it no longer smells of petrol then fill the tank 7/8 full with water, cut a small hole in the tank under the filter remove it then again refill the tank 7/8 full with water whilst you re weld a plate over. If you have cut neatly and folded up a tab..fold it back down and seam weld..you can always fit an inline filter in the fuel line.. it will then need to dry out thoroughly....

T

jaekl
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Re: petrol tank sealer

Postby jaekl » Sat Sep 26, 2020 12:34 pm

A couple years back on another forum someone took a tank apart and they discovered that the pick up tube is flared and slides in from the fuel line connection. Then someone else reported that the filter can be snagged through the filler hole and removed and re-installed. The details a a bit foggy so I might not be recalling correctly. I'll try to find the posts.

jaekl
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Re: petrol tank sealer

Postby jaekl » Sat Sep 26, 2020 1:00 pm

Seems my memory only was off by the age of the posting and that it was the same post. Although I do remember someone did cut a tank open and that probably was older. Between the filler and sender hole one can remove and re-install the filter, but the tube must be loosened .

https://www.morrisminorforum.com/forum/ ... #msg-38057

stuffedpike20
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Re: petrol tank sealer

Postby stuffedpike20 » Sat Sep 26, 2020 3:52 pm

Thanks for the comments everyone.

I just want to buy a new tank for my pickup like the original one, but they do not exist.

Might try some of the suggestions, such as citric acid to clean; but my tank has pin holes which I have covered with plastic metal on the outside. If I can move the internal filter out of the way, I might try sealant.

Thanks, John.

taupe
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Re: petrol tank sealer

Postby taupe » Sat Sep 26, 2020 6:45 pm

maybe you could cut and adapt this one?

https://www.ebay.co.uk/itm/morris-minor ... SwlJlfakVb

And oxalic is much better than citric

T

stuffedpike20
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Re: petrol tank sealer

Postby stuffedpike20 » Sun Sep 27, 2020 5:34 am

Thanks taupe, I did see that one, but it is the wrong shape for adapting.

I have adapted a saloon thank and have now fitted it, but would still like a new original tank. Unfortunately they do not exist.

Thanks, John.

kevin s
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Re: petrol tank sealer

Postby kevin s » Sun Sep 27, 2020 8:45 am

I had a problem with the filter being blocked and collapsed so ended up.doing this.
rps20190202_224925 (1).jpg
rps20190202_224925 (1).jpg (69.79 KiB) Viewed 317 times
The pick up is now in the sender unit and easily removed, the original was blocked with a ball bearing and a hole drilled for the hose to pass through in the boot floor, no problems since it was fitted.
Last edited by kevin s on Sun Sep 27, 2020 3:43 pm, edited 1 time in total.

Major Morris
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Re: petrol tank sealer

Postby Major Morris » Sun Sep 27, 2020 10:24 am

I,ve had good results on other tanks with POR 15 , its a silver paint , not epoxy , it will seal pin holes , sticks well ,
Frost restoration stocks it

stuffedpike20
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Re: petrol tank sealer

Postby stuffedpike20 » Sun Sep 27, 2020 4:38 pm

I like it Kevin.

And thanks Major.

stuffedpike20
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Re: petrol tank sealer

Postby stuffedpike20 » Wed Oct 14, 2020 3:01 pm

I am going to try the POR 15 sealer.
It says you have to use POR metal prep before using the sealer.
Is POR metal prep simply oxalic acid, or is it more sophisticated than that? It does state that POR metal prep etch primes the metal to take the sealant; would oxalic acid do the same?

I am being a true morris minor owner and trying to save money.
Thanks, John.

pgp001
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Re: petrol tank sealer

Postby pgp001 » Wed Oct 14, 2020 4:04 pm

If you decide to use POR15, then follow the instructions to the letter, if you don't it will not work properly.

I did my Honda XL250 tank with it and did not buy the recommended cleaning and preparation chemicals, it was a disaster and I still had a leaky tank.
The problem with POR 15 is that there is not much else that will stick to it, and that includes a second coat of POR15. :(

I ended up having to strip the whole lot back out with some nasty stuff that the technical guy at POR in the USA told me to use.
I then re applied the POR15 and used the correct materials and followed the instructions, and this time it worked a treat.

I would certainly use it again myself, but dont think you can do it on the cheap with the wrong cleaners etc.

Phil

stuffedpike20
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Re: petrol tank sealer

Postby stuffedpike20 » Wed Oct 14, 2020 6:35 pm

Thanks Phil.
Great advice.


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