stewd Posted September 18, 2022 Report Share Posted September 18, 2022 Stude Avanti Radiator Surge/Expansion Tank Repair. Like most of us, I have replaced the tank many times over the past 50+ years. I have had and made repairs from most major vendors but the tanks still seem to fail. I do run a 13# cap, etc. My question is: Has anyone used a liquid epoxy sealer/paint and tried to coat the inside of the tank? I know a few engineers that feel this would work and would hold up to the antifreeze/water solution, and the temperature and pressure limits. Also, what rating pressure cap do others run and does this help out the problem? Link to comment Share on other sites More sharing options...
Kodjo Posted September 18, 2022 Report Share Posted September 18, 2022 I have done it, twice. Failed both times. First I tried to solder it. Tried at least 5 times. After that, I tried 2 layers of epoxy...Still leaking. Then, I added an other 3 layers and the #%$%@$%@$ tank still leaks! I was afraid for the bolt to come loose and create a big leak. So I've made some sort of brace, see picture. All the TLC and still leaking? If you know a solution that involves a complete new tank, i'm in! Link to comment Share on other sites More sharing options...
rufcar Posted September 19, 2022 Report Share Posted September 19, 2022 No one supplies new tanks? Link to comment Share on other sites More sharing options...
Kodjo Posted September 19, 2022 Report Share Posted September 19, 2022 I did not find one tank nor supplier... Link to comment Share on other sites More sharing options...
Leo B Posted September 19, 2022 Report Share Posted September 19, 2022 10 hours ago, rufcar said: No one supplies new tanks? Please check this topic. Ask mr Arkus if he still have. Link to comment Share on other sites More sharing options...
Kodjo Posted September 19, 2022 Report Share Posted September 19, 2022 3 hours ago, Leo B said: Please check this topic. Ask mr Arkus if he still have. Seen that topic, did not help. My tank was at a professional shop but was leaking soon after. I do not like the plastic surge tank solution but it might be the only option left.... Link to comment Share on other sites More sharing options...
Leo B Posted September 20, 2022 Report Share Posted September 20, 2022 (edited) 16 hours ago, Kodjo said: Seen that topic, did not help. My tank was at a professional shop but was leaking soon after. I do not like the plastic surge tank solution but it might be the only option left.... Before I restore my Surge Tank. This looks good to me.😎 Edited September 20, 2022 by Leo B Link to comment Share on other sites More sharing options...
Kodjo Posted September 20, 2022 Report Share Posted September 20, 2022 I don't see it? It's on the pasenger side of the engine? My main problem is that a surge tank is an inveriour system over an expansion tank. The latter is mare reliable. But, with my leaking expansion tank, a surge tank is the easiest option: https://www.parts123.com/parts123/dyndetail.pta?catalog=0001003a&uKeY=AANCO Link to comment Share on other sites More sharing options...
Leo B Posted September 20, 2022 Report Share Posted September 20, 2022 Suits without "tank iron cage" which the kit includes. I just moved the horn. Waste pipe above and inlet pipe below. Link to comment Share on other sites More sharing options...
Kodjo Posted September 20, 2022 Report Share Posted September 20, 2022 Nice! Link to comment Share on other sites More sharing options...
MARK Posted October 4, 2022 Report Share Posted October 4, 2022 Regarding the repair, I have purchased years ago 4 damaged, leaking, rusty and crushed tanks. All were sent to Dave Thibeault who returned them like new. He has a contact who takes them apart, hammers out all the expansion and contraction dents, re solders and paints them correct. I recently sold 1 of the 3 left to an Avanti owner in Miami. He was and is still trilled, even though the purchase was costly. I strongly suggest contacting Dave Thibeault, he is a wonderful source of information, parts and knowledge. Though he has not helped with me trying to buy another car with my wife, she feels I have enough toys. Mark Link to comment Share on other sites More sharing options...
Kodjo Posted October 4, 2022 Report Share Posted October 4, 2022 11 hours ago, MARK said: Regarding the repair, I have purchased years ago 4 damaged, leaking, rusty and crushed tanks. All were sent to Dave Thibeault who returned them like new. He has a contact who takes them apart, hammers out all the expansion and contraction dents, re solders and paints them correct. I recently sold 1 of the 3 left to an Avanti owner in Miami. He was and is still trilled, even though the purchase was costly. I strongly suggest contacting Dave Thibeault, he is a wonderful source of information, parts and knowledge. Though he has not helped with me trying to buy another car with my wife, she feels I have enough toys. Mark I'll give it a try! Could you give me some more contact info of Dave? Link to comment Share on other sites More sharing options...
MARK Posted October 4, 2022 Report Share Posted October 4, 2022 Dave Thibeault 978 897 3158. Studedave@aol.com 13 Nick lane, Maynard, MA 01754. His wife is Janet. Best to call in the morning I have purchased parts from Dave for at least a decade. A wealth of information Mark Link to comment Share on other sites More sharing options...
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