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FE Power Forums => FE Technical Forum => Topic started by: Robin Hood on September 05, 2022, 10:36:07 AM

Title: intake manifold to reservoir tank
Post by: Robin Hood on September 05, 2022, 10:36:07 AM

I have a perpetual dripping from the thermostat connection that I have not been able to get rid of. It is driving me crazy and I was wondering if anyone has had this problem and has a sure fire fix for it?

Thank you

Title: Re: intake manifold to reservoir tank
Post by: Jim Kramer on September 05, 2022, 05:20:21 PM

My first guess would be a crack between the neck and the tank itself. Off to the radiator shop to to brazed, not soldered......Jim Kramer

Title: Re: intake manifold to reservoir tank
Post by: FrozenMerc on September 06, 2022, 01:00:16 PM

Jim is likely correct.  Take it off, get some cheap rubber plugs, and put LOW psi air to it and squirt with soapy water if you want to find the leak for yourself.  Otherwise, take it to your local rad repair shop. 

Title: Re: intake manifold to reservoir tank
Post by: HTM101 on September 11, 2022, 01:25:12 PM

I've had several expansion tanks. The unit I use now, I completely dismantled it and removed all original solder and re-assembled it with high melt-point solder so I could powder coat it.

That being said, do you know the leak is at the point of contact between the tank flange and the intake manifold, as in the gasket area?  If so, I've stopped several minor leaks in that area without removing the tank.  Thoroughly dry the area, clean the area with some Brakleen, and then add a smear of your favorite color RTV.

Title: Re: intake manifold to reservoir tank
Post by: Robin Hood on September 12, 2022, 09:29:03 AM

Thanks Everyone! I will check out the tank thoroughly