Monaco Coolant tank

They do make a white Teflon pipe dope that is brushed on. Perhaps that is what they used. Available at Home Depot.

They have the white tefln as mentioned in previous post. They also make a better quality pipe dope not effected by chemicals. It is an oil bas type product used on gas and oil lines.

I'm on my third new coolant tank that was just installed about a year ago. I'm having leaking problems at the very point that you mention. The brass 'nipples' at the top is where it is leaking. It's time for my full 60,000 service (62,500 actual miles) and the Cummins facility that installed the new tank is going to check everything out. I'm losing about a gallon of antifreeze every 1,000 miles and it's coming from those two connections at the top of the tank.

MM.

Mr.Mark wrote:
I'm on my third new coolant tank that was just installed about a year ago. I'm having leaking problems at the very point that you mention. The brass 'nipples' at the top is where it is leaking. It's time for my full 60,000 service (62,500 actual miles) and the Cummins facility that installed the new tank is going to check everything out. I'm losing about a gallon of antifreeze every 1,000 miles and it's coming from those two connections at the top of the tank.

MM.

You need to read the articles on the internet about diesels and fires with evaporating anti-freeze in a warm engine compartment. I would make sure it got fixed as soon as possible.

Check out the posts shown. Mostly side radiators.

Diesel fires caused by anti-freeze leaks

Permatex makes an automotive hight temp thread sealant. I ofund that one very useful for applications like this. I have also had no issues using tape on oil and collant fittings on my race car.

WyoTraveler wrote:

Mr.Mark wrote:
I'm on my third new coolant tank that was just installed about a year ago. I'm having leaking problems at the very point that you mention. The brass 'nipples' at the top is where it is leaking. It's time for my full 60,000 service (62,500 actual miles) and the Cummins facility that installed the new tank is going to check everything out. I'm losing about a gallon of antifreeze every 1,000 miles and it's coming from those two connections at the top of the tank.

MM.

You need to read the articles on the internet about diesels and fires with evaporating anti-freeze in a warm engine compartment. I would make sure it got fixed as soon as possible.

Thank you for the info, it's getting fixed on the 26th of August at a Cummins facility.

MM.

MM,
you have a pm.