Nevada Rob Posted October 6 Share Posted October 6 The coolant tank for the generator is cracked in 4 places. I appears that Cummins/Onan has decided to not produce these tanks any longer. I am guessing Cummins is just like a ziplock bag. Use a little then throw it away and get a new one. I have searched the inter-web for a replacement with zero results. Has anyone tried to plastic weld the tanks as a repair? To have a tank custom built is very costly. Link to comment Share on other sites More sharing options...
planodp Posted October 6 Share Posted October 6 Here is what I found in stock. https://getrvparts.com/onan-cummins-a028t844-rv-generator-diesel-coolant-recovery-tank/ Link to comment Share on other sites More sharing options...
Ivan K Posted October 6 Share Posted October 6 I have plastic welded a number of things successfully in the past, from plastic bumper covers, fan shrouds to small fuel tanks. Just get the correct rod for it and it should be worth a try, there's no pressure in the tank so should be doable. Not much of a risk in that situation. Otherwise even a generic overflow tank should work and they are/were cheap. 1 Link to comment Share on other sites More sharing options...
Pduggs Posted October 6 Share Posted October 6 5 hours ago, Ivan K said: I have plastic welded a number of things successfully in the past, from plastic bumper covers, fan shrouds to small fuel tanks. Just get the correct rod for it and it should be worth a try, there's no pressure in the tank so should be doable. Not much of a risk in that situation. Otherwise even a generic overflow tank should work and they are/were cheap. What product do you use? J-B Weld? Link to comment Share on other sites More sharing options...
Ivan K Posted October 6 Share Posted October 6 1 hour ago, Pduggs said: What product do you use? J-B Weld? Not the epoxy kind but actual melting of the plastic and filler rod into the cracks. This is what I use but there are many others I'm sure. 1 Link to comment Share on other sites More sharing options...
Paul J A Posted October 7 Share Posted October 7 RV Parts & Salvage Yards https://camperfaqs.com/rv-salvage-yards https://bontragers.com www.rvdoctorgeorge.com https://colawrvsalvage.com/, https://www.veurinksrv.com/ https://www.rvyard.com/ findmyrvparts.com rvparts.visonerv.com anyrvparts.com finditparts.com https://www.nwrvsupply.com/ 1 Link to comment Share on other sites More sharing options...
Nevada Rob Posted October 11 Author Share Posted October 11 On 10/6/2023 at 7:54 AM, planodp said: Here is what I found in stock. https://getrvparts.com/onan-cummins-a028t844-rv-generator-diesel-coolant-recovery-tank/ I checked with them. They are "backordered" according to their answered email. Link to comment Share on other sites More sharing options...
96 EVO Posted October 11 Share Posted October 11 I patched mine up a few times and finally gave up on the POS! Mounted a generic bottle style aluminum overflow tank outside of the gen box. Appears to be working just fine. 1 Link to comment Share on other sites More sharing options...
Nevada Rob Posted October 11 Author Share Posted October 11 I can not find a tank anywhere. The tank is at a body shop to possibly be plastic welded together. I guess Onan/Cummins figures they are good with a throwaway generator. Maybe I can fab one in the shop that fits perfectly as a replacement. Spend hundreds of hours on prototypes. Then finally get a product dialed in and sell them for a ton of cash??? Link to comment Share on other sites More sharing options...
96 EVO Posted October 11 Share Posted October 11 Well, I think I paid about $30CAD for what I have, so, unless you can deliver something cheaper than that 😂..... Link to comment Share on other sites More sharing options...
planodp Posted October 12 Share Posted October 12 19 hours ago, Nevada Rob said: I checked with them. They are "backordered" according to their answered email. I went on line and try to order and it seem like that they have one. I was able to get to shipping cost. Just short of paying for it. Link to comment Share on other sites More sharing options...
radioman Posted October 13 Share Posted October 13 On 10/6/2023 at 10:45 AM, Nevada Rob said: The coolant tank for the generator is cracked in 4 places. I appears that Cummins/Onan has decided to not produce these tanks any longer. I am guessing Cummins is just like a ziplock bag. Use a little then throw it away and get a new one. I have searched the inter-web for a replacement with zero results. Has anyone tried to plastic weld the tanks as a repair? To have a tank custom built is very costly. One of the NASCAR team engineers needed one for the owners Bus for a 12.5 and he 3D printed 8 of them. I ask him if he had anymore. He said he sold them to Marathon Coach in Oregon. He thinks he might still have the CAD drawing. Link to comment Share on other sites More sharing options...
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