Exactly what the topic says...I just had a sump welded in and my fabricator recommended that I use a fuel tank sealer before I actually run fuel through it...Is that true? I thought you only needed fuel tank sealers for tanks that are bad, such as leaks or rust/ corrosion...

Here is one company that sells fuel tank sealers but as the FAQ section states...this is for gas tanks with problems...

What are some typical problems requiring need of sealer?
*Tanks may be very rusty inside due to years of non-use.
*Tanks may have gunk or caked sludge inside, which must be removed and the tank walls must then be coated.
*Tanks may have pinhole leaks or leaking seams.
*Tanks may have a combination of the above.

What have you guys done as far as prepping the tank after your sump was welded in, if any?? TIA

 

A fuel talk sealer will make certain there are no pinhole leaks now or in the near future. Not a bad idea when you have had work like that done on a tank, you can very easily have pinhole leakes where the welds were made. It will have 3 parts one cleans, the second is an acid that etches, and the third is the sealer than does exactly what you expect.


Modified by virginia_dude at 8:52 AM 10/3/2003


Modified by virginia_dude at 8:53 AM 10/3/2003

 

Well its already been pressure tested so I dont think that it will have any pinhole leaks....Is there a chance that this sealer will affect the flow of the fuel at any point? Im just worried about uneven coverage and what adverse affects it may possibly have on fuel delivery....

 

i dont think it would have any adverse effects. personally, i think you should listen to the expert that welded your fuel tank

 

yeah thats tru...thnx...

 

Its routine to do that on motorcycle tanks, Most tanks are galvanized, the welded portion isn't, it is suseptible to corrosion from small amounts of water that are going to work its way into you r tank, its always a good idea to do, it will not adversly affect any fuel delivery. Only concernes are if you were running Nitromethane fuel mixes and I am fairly certain yours is not likely to see that. THat would disolve the liner but yours is not that situation.

 

Damn, so I cant run the nitro next season like I wanted?? ....I went ahead and got some sealer...u guys are right it cant hurt, only help so f^% it...