B-100 Fuel Tank

[Save Old Iron 1,571]

EZ,

just thinking out loud here but the above mentioned materials either provide a mechanical "bite" due to roughness of their surfaces, or a certain solubility to a specific adhesive.

Polypropylene provides neither and contains "oils" (probably not the correct term but OK for purposes of discussion).

The "oils" alone would probably repel any effort to attach the adhesive to the poly.

How about this.

Drill out the current leaking nipple area to allow the rubber seals currently used on newer tractors to be inserted into the hole. Then add a fuel shutoff valve under the tank. If the area that leaks is confined to a small circular area, one of the easily obtained fuel tank gaskets should be able to plug the hole and provide for a fuel outlet.

[Fiddlestix 0]

I agree as to the difficulty of bonding the "greasy" plastic. A challenge indeed. Just curious to see if it has been attempted.

I know how I would TRY to fix said tank before throwing it away. I would straddle the split for a substantial distance in all directions with an aluminum sheet scab... perhaps .032 thick. Area cleaned and abraded. Then match drill the plate and tank for 1/8 or 3/16" aluminum shank , aluminum mandrel CLOSED END blind (POP) rivets perhaps every 1". Then smear area with the B2 sealant and commence to riveting the patch on. The rivets provide the mechanical attachment and the sealant then acts as a gasket. The rivets have a closed end thus not needing sealing of the mandrel hole.

Next time I'm playing around with some of this sealant, I will have to do a test patch on poly tank as this. :omg:

[buckrancher 2,694]

I agree with Chuck (save old Iron) looks like it's time for a new tank :omg:

[KC9KAS 4,744]

Have a tank coming from Kelly. Thanks for all the ideas, but it sounds like thes WH plastic tanks are next to impossible to "repair"!

[junkman 0]

marine-tex will do it. i use it on atv tanks :D