I poured some gas in my 30 model-a last night and I have a small leak under that metal flap at the bottom. I see some gas tank sealer on e-pay. Has anyone tried tank sealers with good results? What did you use? I dont want to be fixing it again in a year. Thanks
Heres the link to ebay http://cgi.ebay.com/ebaymotors/ws/e...ry=34202&item=4537665690&rd=1&ssPageName=WDVW
I have used the gas tank sealer that POR sells...It worked great...DON'T GET IT ON YOUR HANDS. Tim MBL
I had a tank sealed once by a shop and in my opinion, tank sealer ****S. I spent $80 on it and it worked for about 6 months then started leaking again. After I took the tank off for the last time, I cut it open to see what the problem was. The sealant stuff was pretty tough, but there was a good bit of rust in the tank. From what I could tell, if there is any rust, the sealant will not stick (I could pull it off in places). Over time the gas finds a small breach in the sealant and seeps through and leaks. In my case, it leaked a little slower after the sealant, but it was still $80 down the drain. Was it the sealants fault? probably not...Was it the shop's fault...again probably not, they did do a pretty good job cleaning the tank.... I think it comes down to the fact that that stuff was designed to stick to clean metal. How are you going to get ALL of the rust out of a tank??? Just my $.02
I wouldn't use it at all. Any additive, race gas, or even a change in brands can cause it to come loose. Seen lots of bike tanks where it has "crept" through the pet****s into the carbs. Sometimes it wont stick to the solder use to make those old tanks. I have seen it softened and partially dissolved by octane boosters, alcohol fuel driers, etc. Better to spend the money and time on a better tank or a real repair
See this thread some discussion on sealents and cleaning. http://www.jalopyjournal.com/forum/showthread.php?t=49199
We've used the POR-15 stuff a lot over the years but this last year I had a failure with it. Tank saw cleaned and dried just like it should have been, sealer was put in then it actually sat for a couple months before it was put in the car. Well dumb*** me forgot to clean out the pickup tube and when I removed the tank the sealer was pealing off in huge pieces! Don't know if I got a bad batch or what, but just keep in mind nothing is 100%
Quite a few people have had good luck with the sealers, others not, I always questioned what would happen if a leak develops with sealer in the tank. I think that means you could forget about solder to fix the tank, unless you get all the **** back out. I don't use it.
Well I went out last night a started welding around the leak. It took a while but I pressurized it, went out this morning an no leaks. Thanks for the advice.
Fill the tank slightly over half full with vinegar you buy from the grocery store,and let it sit overnight. Maybe even two nights if the rust is thick. Turn it over and let is sit for another night or two. Pour the vinegar out and immediately flush it with hot soapy water,rinse with hot water,and put your tank sealer in the instant the water flush dries. If you have never tried it,you won't believe how vinegar eats rust.
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