Bypass Heater Core

[Joe C.]

Much easier to disconnect and plug both hoses, unless flow has to be maintained through both hoses in which case a connector nipple has to be used. Is a nipple/flow necessary? If plugged, I assume that all the flow goes thru the reservoir and then back to the rad thru the 1/4" hose to the top of the rad.

[Harry S.]

Re: Bypass Heater Core

Joe, on a C2 with A/C the hot water shut off valve is always closed unless you call for heat. Saying that, just plug the hoses.

[John M.]

Re: Bypass Heater Core

Joe, If you're saying you want to take the heater core out of the circuit but leave the hoses connected I can send you some internal hose plugs that I make for just that purpose. My heater core was perfect but the nipples for the heater hoses were deformed quite a bit and leaked a little so I put these plugs inside the hoses and then reconnected them until next winter when I can take that whole mess out and fix it.
John

[Gene M.]

Re: Bypass Heater Core

Joe,
Do you want to maintain the illusion that the heater core is intact and functional or just eliminate it? If eliminate then just use pipe plugs in place of the nipples. If otherwise Harry all ready covered it.

[Richard M.]

Re: Bypass Heater Core

In the AIM if you look up RPO C48, Heater Delete, it shows how the factory did it. IIRC they used a plug on the intake and the water pump hose connected to the expansion tank Tee(or was it the other way around?) and a rubber plug was put on the open end of the Tee.
Rich

[Joe C.]

Re: Bypass Heater Core

Thanks all!
I'll plug them so I can drive for the next few months.
This turns out to be my excuse to finally put vintage air in it over the winter!

[Donald O.]

Re: Bypass Heater Core

Thanks all!
I'll plug them so I can drive for the next few months.
This turns out to be my excuse to finally put vintage air in it over the winter!

Joe, there are metal hose adapters that connect a 5/8" to a 3/4" hose.

Don