Heater core delete (69' 510)

[Wesglock]

So, if I was to remove the heater core and not replace it (run the car without heater), what hoses, etc.. would need to be plugged up? 

[Tristin]

You would just need to plug the heater hoses that come out of the block. You should be able to see them going through the firewall. 

[Laecaon]

Basically plug the L attached to the rear of the head on the passenger side. And plug the inlet to the waterpump for the water line coming from the firewall.

[king bee66]

just bypass the core,  get a long hose and loop it from the back of the head to the block

[crackerjack69]

^^^^^ what he said. "plugging" a pressurized water cooling system would not be something I'd do on my car. I mean, how you gonna plug it? What are the risks of the plug failing? On the other hand, you run a loop of heater hose from the head to the motor, and you have a cheap effective solution. Just my opinion. We do this all the time when you got a hole in the core and not enough time/money to fix it right away.

[Laecaon]

Isnt plugging the same as simply shutting the valve off to the heater...?

[Tristin]

Yes you can actually plus the hose if you wanted to... theres a possibility that it blows, but when I suggested it, I was talking about removing the hose entirely and plugging it at the block.

[crackerjack69]

Plugging is plugging. Shutting off the valve seems reasonable, jamming the the outlet on the head full of JB weld... Is what I think of when I hear "plugging". LOLZ. I did just "plug" some of those smog exhaust runners with JB weld the other weekend, temporary till I pick up some NPT plugs.

[crackerjack69]

Yes you can actually plus the hose if you wanted to... theres a possibility that it blows, but when I suggested it, I was talking about removing the hose entirely and plugging it at the block.

Plug with...?

[Tristin]

Ive seen people tap and plug the block before... no I didnt mean JB Weld lol. 

[Laecaon]

You dont even need to tap the head. Its already threaded...

 

As for the port at the water pump inlet, Probably not the smartest to tap that... lols

[king bee66]

i suggested to loop it, in case he ever actually wanted to fix the problem it would be easy enough to link back into the heater box without hassle.

[HRH]

Just put a pipe plug in the rear block fitting, and weld up the return coolant line off the water neck.  Problem solved.  Capping or plugging off isn't any problem.  It's only 16 psi of pressure.  You'd want to use something OTHER than a vacuum cap that fit, mind you.  Looping the lines ahead of the firewal is easier.  Or just twist the rear block plug so it faces the front water outlet hole and connect it via a single hose.  Viola, bypassed heater core.