Did I Make a Mistake?

[oosik]

A thought. Ask if they have shop manual pages that show removal/instal of that fuel tank. Also the torque specs for the bolts that hold it in place. If the second tank develops cracks you don't want them saying that you over tighten the bolts.

 

[Chrisb009]

Not sure if the inserts caused the tank to fail by being overtorqued or if the way the tank was mounted caused it to fail by flexing and vibration and torsion on those bolts but you could possibly make a metal plate with holes that are tight tolerance that line up exactly with the insert holes in the tank. This metal plate would take the stress off the inserts from vibration and torsion and flexing, but it still wouldnt help you if the inserts are twisting and cracking tank due to mounting torque. You could always mount them with light torque and use loctite to hold them in..

Actually I like this idea. I could fab some brackets that would wrap around the entire tank and attach at the bracket rather than use the tank inserts.

Thanks,


Chris

 

[Chrisb009]

A thought. Ask if they have shop manual pages that show removal/instal of that fuel tank. Also the torque specs for the bolts that hold it in place. If the second tank develops cracks you don't want them saying that you over tighten the bolts.

I have the shop manual however there's very little information regarding the fuel system to include the tanks but I'm in full agreement they need to be torqued properly to prevent future finger pointing.

Thanks,

Chris

 

[fried1765]

I have the shop manual however there's very little information regarding the fuel system to include the tanks but I'm in full agreement they need to be torqued properly to prevent future finger pointing.

Thanks,

Chris

I doubt that you will find any torque specs. listed anywhere, for fuel tank mounting, on any tractor.
The idea of not using the factory mounting tabs at all, seems like the best one.
Flexing of those tabs at the tank attach points is likely your issue.
Making straps to go around the tank would seem to be the best idea.

 

[weathda]

I'd keep pestering the selling dealer. Hope they come through for you.

I'd only try this once the new tank is in hand. If you don't have to send the old tank back, before installing the new tank, I'd try to plastic weld the cracks. Take soldering iron and melt the plastic on itself. Not sure you'd fix it completely under the brass fittings, but might seal it up 97% and make it useable for a while.

 

[ptsg]

Actually I like this idea. I could fab some brackets that would wrap around the entire tank and attach at the bracket rather than use the tank inserts.

Thanks,


Chris

Most of the tanks mounted under the operators platform are done this way.

Two straps around the plastic tanks with a piece of rubber to isolate between the strap and tank.

 

[Chrisb009]

Most of the tanks mounted under the operators platform are done this way.

Two straps around the plastic tanks with a piece of rubber to isolate between the strap and tank.

Exactly - same design on road driven vehicles so I'd assume it's a proven design unlike the direct bolt on style.

 

[Chrisb009]

I'd keep pestering the selling dealer. Hope they come through for you.

I'd only try this once the new tank is in hand. If you don't have to send the old tank back, before installing the new tank, I'd try to plastic weld the cracks. Take soldering iron and melt the plastic on itself. Not sure you'd fix it completely under the brass fittings, but might seal it up 97% and make it useable for a while.

I was thinking the same thing - repair the current tank by sealing up the entire backside via plastic welding or other means. I'd only give this a try once I have the new tank on hand and they don't want the damaged tank back.

Thanks,

Chris

 

[Chrisb009]

I doubt that you will find any torque specs. listed anywhere, for fuel tank mounting, on any tractor.
The idea of not using the factory mounting tabs at all, seems like the best one.
Flexing of those tabs at the tank attach points is likely your issue.
Making straps to go around the tank would seem to be the best idea.

I totally agree - this would be the most cost effective fix and a fix that would probably prevent any future tank issues.

Thanks,

Chris

 

[9973720wb19]

Tell them to take a fuel tank out of a tractor on the lot..

that's what my dealer did for me on a new holland skid steer. coolant tank was leaking...took a plastic coolant tank overflow tank it off another unit and order one for that unit so I could keep moving