BucketTrucker688 Posted July 22, 2010 Share Posted July 22, 2010 i have aa 91 r model with the large air tank that looks like a beer keg, well it has rusted through under the straps and naturally is now leaking air. anyone know if there is a aluminum tank avaiable that would work? mack wants anywhere from $1100-$1300 which i think is crazy for what it is. anyone have any alternative ideas of has anyone run into this problem? its only a pin hole rite now and i would take it off and attempt to fix it but i dont want to open up a can of worms and open it up more. but i think the dot wouldnt be too impressed to see that. Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/ Share on other sites More sharing options...
rhasler Posted July 22, 2010 Share Posted July 22, 2010 i have aa 91 r model with the large air tank that looks like a beer keg, well it has rusted through under the straps and naturally is now leaking air. anyone know if there is a aluminum tank avaiable that would work? mack wants anywhere from $1100-$1300 which i think is crazy for what it is. anyone have any alternative ideas of has anyone run into this problem? its only a pin hole rite now and i would take it off and attempt to fix it but i dont want to open up a can of worms and open it up more. but i think the dot wouldnt be too impressed to see that.The DOT won't like it if they find out you don't have enough air reservoir capacity either. Post your VIN or PM and I'll see if I can find an aluminum tank of the same dimensions. They did have aluminum air tanks for RD chassis, but I would expect to pay more for aluminum than for steel (if buying new). Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60034 Share on other sites More sharing options...
BucketTrucker688 Posted July 22, 2010 Author Share Posted July 22, 2010 last six of the vin is 010283 Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60067 Share on other sites More sharing options...
Mike Posted July 22, 2010 Share Posted July 22, 2010 Was the thought of welding out of the question? That is what I had done to my single steel air tank on my B model recently. The job was done poorly but, the weld will be there after the tank is gone. mike Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60069 Share on other sites More sharing options...
rhasler Posted July 22, 2010 Share Posted July 22, 2010 last six of the vin is 010283The parts list shows two air tank part numbers which are supposed to be interchangeable. Both are labeled as steel. Part numbers for the tanks are 22QE41212 and 22QE31053P2. They are described as being 22 inch diameter tanks with 8250 cu in capacity. I haven't been able to find an aluminum version of that tank. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60070 Share on other sites More sharing options...
BucketTrucker688 Posted July 28, 2010 Author Share Posted July 28, 2010 ahh oh well thanks for checking that though...i guess i have to check the junk yards. ....yeah i gave welding it a thought but im worried whats going to happen to it when i take the straps off it...or im going to have to do some retro fitting....peterbilt made some decent looking air tank sets that i see on some of the later tri-axles. Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60469 Share on other sites More sharing options...
rhasler Posted July 28, 2010 Share Posted July 28, 2010 ahh oh well thanks for checking that though...i guess i have to check the junk yards. ....yeah i gave welding it a thought but im worried whats going to happen to it when i take the straps off it...or im going to have to do some retro fitting....peterbilt made some decent looking air tank sets that i see on some of the later tri-axles.If you have enough room you might be able to mount the longer tank that many of the RD chassis have. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60470 Share on other sites More sharing options...
BucketTrucker688 Posted July 28, 2010 Author Share Posted July 28, 2010 i dont know if i have ever seen an rd style tank. have seen a ton of rd's but never took notice to their tanks. aluminum?? Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60520 Share on other sites More sharing options...
rhasler Posted July 28, 2010 Share Posted July 28, 2010 i dont know if i have ever seen an rd style tank. have seen a ton of rd's but never took notice to their tanks. aluminum??Here's a picture of it and the mounting hardware, brackets, etc. The part number for the aluminum version of the tank is 22QE41192. 12" diameter by 50.88" long, 5449 cu in capacity.tank.pdf Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60521 Share on other sites More sharing options...
ducky698 Posted July 29, 2010 Share Posted July 29, 2010 Here's a picture of it and the mounting hardware, brackets, etc. The part number for the aluminum version of the tank is 22QE41192. 12" diameter by 50.88" long, 5449 cu in capacity.Hi, weld her up, it will be pitted under the straps, but it wont be to bad. in my pics I have the tank mounted near tail shaft, it sits behind fuel tanks, it is genuine mackGrant Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60526 Share on other sites More sharing options...
BucketTrucker688 Posted July 29, 2010 Author Share Posted July 29, 2010 Hi, weld her up, it will be pitted under the straps, but it wont be to bad. in my pics I have the tank mounted near tail shaft, it sits behind fuel tanks, it is genuine mackGranti think 58" is to long my air dryer is directly behind the fuel tank and the lift axle is directly behind the air tank. i have i think its like 30" max to mess with. and id like to get a six inch piece of exhaust pipe up through there aswell to get a stack up the drivers side after i cut the head board of the dump box down. Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60560 Share on other sites More sharing options...
ducky698 Posted July 30, 2010 Share Posted July 30, 2010 i think 58" is to long my air dryer is directly behind the fuel tank and the lift axle is directly behind the air tank. i have i think its like 30" max to mess with. and id like to get a six inch piece of exhaust pipe up through there aswell to get a stack up the drivers side after i cut the head board of the dump box down.Hello, well you might be stuck to welding her up or converting to electric start or buy a new one?? welding her up be the cheapest depending on how bad it is.pitty I am not near you, I have 2 here.Grant Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-60633 Share on other sites More sharing options...
convoyduel Posted August 27, 2010 Share Posted August 27, 2010 Hello, well you might be stuck to welding her up or converting to electric start or buy a new one?? welding her up be the cheapest depending on how bad it is.pitty I am not near you, I have 2 here.GrantI had a huge aluminum air starter air tank on a '90 CH613 I sold a while back. It was mounted under the driver's side cab, about the size of what you are talking about. Have someone at Mack look up CH613 with the last six of 007999. Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-62500 Share on other sites More sharing options...
rhasler Posted August 27, 2010 Share Posted August 27, 2010 I had a huge aluminum air starter air tank on a '90 CH613 I sold a while back. It was mounted under the driver's side cab, about the size of what you are talking about. Have someone at Mack look up CH613 with the last six of 007999.The part number for that tank is 22QE39321P2. There are no dimensions given for it. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-62503 Share on other sites More sharing options...
MidniteMechanic Posted August 27, 2010 Share Posted August 27, 2010 Just get some 1/8 inch steel rolled to match the tank and have it welded on. A friend just got 2 pieces rolled to repair where the straps go, cost $50. We will weld it ourselves but it should'nt cost much to have it done. Definately cheaper than a new tank or the cost of fittings and hose to try and make something else work. Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-62506 Share on other sites More sharing options...
convoyduel Posted August 28, 2010 Share Posted August 28, 2010 Here is a picture of the air starter tank I was referring to. It is aluminum but painted black. Quote Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-62508 Share on other sites More sharing options...
HK Trucking Posted August 28, 2010 Share Posted August 28, 2010 Just get some 1/8 inch steel rolled to match the tank and have it welded on. A friend just got 2 pieces rolled to repair where the straps go, cost $50. We will weld it ourselves but it should'nt cost much to have it done. Definately cheaper than a new tank or the cost of fittings and hose to try and make something else work.That's what I'd do if it was mine.Don't forget to pressure test all the welds with soapy water, and re do any pinholes before re installing the tank. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-62530 Share on other sites More sharing options...
Rob Posted August 28, 2010 Share Posted August 28, 2010 That's what I'd do if it was mine.Don't forget to pressure test all the welds with soapy water, and re do any pinholes before re installing the tank.Hi Herb. You mean like someone did seven times to my passenger side fuel tank?? There are also three patches on the large air tank, but I don't have photos of that.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-62536 Share on other sites More sharing options...
HK Trucking Posted August 28, 2010 Share Posted August 28, 2010 Yeah, something like that, although it would be better to form a band & do the entire strap area with one piece!A couple times I had rust holes in fuel tanks, so I sent 'em to a local welding shop, figuring they'd do a nice job. When I picked up the tanks, each time I asked "did you pressure test it"?The reply was "we don't do that here".Both of those tanks leaked due to pinholes in the welds.I got pissed off & removed the tanks again both times, re welded the problem areas myself & tested with 10PSI in the tank and soapy water sprayed on the welds.After that, I just always did it myself. Why pay big bucks to somebody else, then do the job over again myself anyway.Safety note to anyone contemplating welding a tank: REMOVE ALL PLUGS & CAPS BEFORE & DURING WELDING! IF PRESSURE & HEAT BUILD UP IN A FUEL TANK OR OILY AIR TANK, YOU'VE GOT A POTENTIAL BOMB THERE!!!! Not only that, but the pressure will push back & make a porous weld.ALSO, NEVER WELD ON A GASOLINE TANK!!!!!!!!!!!!!!!!!!. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-62537 Share on other sites More sharing options...
Rob Posted August 28, 2010 Share Posted August 28, 2010 Yes, this was kinda comical when I pulled it from the truck. They are sound welds, but look terrible being so many of them. My son actually bought me a duplicate tank in very near new condition to replace this one, but I've not mounted it yet.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/14929-r-model-air-tank-problem/#findComment-62538 Share on other sites More sharing options...
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