Forum

[Dennis C]

Hi Peter


There are proprietory cleaners available now for derusting and cleaning inside the tank prior to lining,  having used both methods I think that they are a better way to clean out the tank, being liquid it gets into every last little crevice better than the old gravel method and far easier to clean out afterwards.

[Chris Tindal]

Thanks Dennis and Peter, I'll certainly get it done now, its too good to sit at the bottom of my wardrobe. Alan I,ve just bought the monoblock kit so know what you mean, took a while to set up but now its running good (after I put the ignition timing back to 0.8!)

[Alan R]

Hello again Chris -----------how about putting some rubber pads in with the mounting brackets ??  I tried the  "Gravel Stone Maracas" last year with a 1980 Honda fuel tank. Unless you want arms like Godzilla's ---FORGET IT !! I use these people ------- Tank Care Products ------- and found them V. Good indeed. They will even collect / take your tank at any of the major Classic shows. Their lining is proof against E10 fuel ( Which is on it's way here ). As Ethanol will absorb H2o  then seperate-out during storeage, even steel tanks now need to be lined.  Do give that some thought and Google / Wikipedia}--- Ethanol ----- for a fuller understanding. Note also that Brasil is now at 25% I see from Burslem's site (makers of Amal carbs ) they say their current materials are ok for use with this, and projeted fuel mixes.  However, carbs etc over 10 years old may be at risk !!! Expect to see then a glut of old bikes, cars etc suddenly up for sale. I have 2 off, 4-cyl Honda's from the mid 70's and one from 1980---all with their original carbs. fitted and am starting to think along those lines. Unless I can find cabs made out of suitable materials that will do the job ?? V.-difficult for the GL 1000 Goldwing set-up.  

[grunda 12]

don,t be a fool chris if your tanks leaking its very tired after 1 repair it,l go somewhere else and leak again ,if its perforated like a tea bag skip it its just not worth all the hassell besides your indian tank is just as good as the worn out english tank ,fill it with concrete and throw it in the calder!!!!!!

[Norm]

 Molasses for cleaning rust from inside petrol tanks. If anybody is slightly interested I will check the ratio but the tank will end up spotless and it doesn't attack the paint like some of the other treatments. Bronze is by far the best repair. Before welding and after flushing as Dennis C says,I take the tank to a vacant block I get a rag on a long stick, light it and wave it over the tank filler opening, and if it doesn't go bang , it's right for welding. Better to be sure than sorry

[grunda 12]

just another thought ,i have brazed many fuel tanks mainly steel 90 gallon tanks on M.A.N waggons in the 80,s they used to crack near the tank straps ,after being brazed after many k,s on the tacho they would crack again in simular places but i never realised that braze was flexable ,and i,ve done more than my fare share of brazing,but as they say you learn something every day and a man who knows it all is almost certainly a liar all the best paul ,p.s maybe your amal carb was leaking because rusty crud had got inside it fit an inline filter chris!!

[Chris Tindal]

Thanks for all the suggestions chaps I'm carefully considering them all. Paul I also suspect the rust from the tank upset the carb, see you Thursday.

[Dennis C]

Hi Grunda 12


You appear to have a real aversion to repairing tanks.


In reality in this case the tank does not even need to be brazed as the tank liner will form a tank within the tank this internal tank will be fully petrol proof and also flexible enough to resist any stress cracks caused by vibration so it will not matter if other parts of the seams are getting thin and the lined tank will be totally safe.

[grunda 12]

hi dennis ,i don,t have any problem with people repairing tanks i wouldn,t personally use a tank liner as so many people are having and will have in the future problems with these products,enfield bullet tanks are readilly available so if you have 1 that resembles a T bag buy a new one surely its common sense unless of course anyone knows different ,all the best paul tankrepairphobic only joking!!

[Dennis C]

Hi Grunda 12


Yes I agree with you on that point but, Chris states that his tank is "nearly 60 years old and replacements are unavailable"