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smelling coolant
smell coolant very strong in the vicinity of the hot water heater on my '94 280 w Cummins 8.3 ...suspect the engine heat system of the hot water heater leaking, any way to isolate..valves to close etc?

thanks in advance

Re: smelling coolant
Reply #1
Not familiar with your Cummins but on the Detroit Diesels there are 2 valves on the engine block that can shut off the coolant flow that goes to the water heater, if you have that option on your water heater. 

Re: smelling coolant
Reply #2
Not familiar with your Cummins but on the Detroit Diesels there are 2 valves on the engine block that can shut off the coolant flow that goes to the water heater, if you have that option on your...


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Re: smelling coolant
Reply #3
If your coach MotorAid water heater plumbing is still factory stock, you should have one water hose valve on the wall in the vicinity of the water pump and water heater.  Closing this valve diverts coolant flow around the water heater to increase...

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Re: smelling coolant
Reply #4
If your coach MotorAid water heater plumbing is still factory stock, you should have one water hose valve on the wall in the vicinity of the water pump and water heater.  Closing this...


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Re: smelling coolant
Reply #5
Indeed, look at the back of the water heater.  May be nothing more than a hose clamp or cracked hose that you could splice using a barb to barb fitting and short piece of new hose. That is at least as likely as a bad water heater.

Re: smelling coolant
Reply #6
Thanks, will do

Re: smelling coolant
Reply #7
If it gets to be an emergency and no valves:

jk


Re: smelling coolant
Reply #8
These are easier on the hose:

10" Locking Grip Radiator Hose Pinch-Off Pliers, NEW - - Amazon.com

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Re: smelling coolant
Reply #9
going to order those hose pliers today. Look like a must tool to keep in the mh

Re: smelling coolant
Reply #10

Just a cheaper set of pincher clamps giving options for tighter area.


OEMTOOLS 24689 3 Piece Hose Pinching Pliers Set | Mechanics Tool for Clamping Fuel, Bake, Coolant, Vacuum Hoses During Engine Work | Powerful & Easy to Use Engine Tools | Mess...

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Re: smelling coolant
Reply #11
Closed the valve, will have a look at things when it's nicer outside, thanks for the replies