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Heater Box Bypass


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#1 Gatti

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Posted 25 November 2019 - 08:35 PM

Hi fellas,

 

I want to tidy up my engine bay and as I won't be needing the heater I want to bypass it to remove the hoses.

 

Can I just put end caps on the inlet and outlet of the Thermostat or do I need to run a pipe between them to circulate the water?

 

I am planning on using the end caps like below if I can.

 

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Edited by Gatti, 25 November 2019 - 08:35 PM.


#2 Ice

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Posted 25 November 2019 - 09:26 PM

Ends caps are fine some people join them

#3 claysummers

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Posted 25 November 2019 - 11:06 PM

You could be proper tidy and put an EH HD lower housing on Matt. I wouldn’t trust them new fangled caps. 8)8)


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#4 S pack

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Posted 26 November 2019 - 06:28 AM

You could be proper tidy and put an EH HD lower housing on Matt. I wouldn’t trust them new fangled caps. 8)8)


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Not if it's a later model cylinder head that has the extra hole to suit with the later type housing.



#5 meanmachine72

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Posted 26 November 2019 - 07:33 AM

used those caps before and found they blew out, even when new



#6 claysummers

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Posted 26 November 2019 - 07:34 AM

One hole is blind and the other gets plugged so not that tidy really. Weld or plug the outlets and fit caps over the top then.


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#7 308 Sunbird

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Posted 26 November 2019 - 07:58 AM

used those caps before and found they blew out, even when new

Yep same thing happened to me with the old track car at Calder.

Got everyone's attention that were following me :)



#8 Gatti

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Posted 26 November 2019 - 09:37 AM

Thanks fellas.

 

Looks like I'll use a short hose as a loop to avoid the end caps blowing out.

 

Cheers



#9 claysummers

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Posted 26 November 2019 - 09:46 AM

Hard to find one with the radius so you generally need to fold the hose, which leads eventually to failure and looks rough. You can weld up with a stick welder using rods for cast iron or tap and bung with sealant on the threads. Then caps cover the aesthetics. But really they did it from the factory so just fit caps.

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#10 Ice

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Posted 26 November 2019 - 10:08 AM

used those caps before and found they blew out, even when new


Ive had them on several engines never had one blow off yet

#11 Dr Terry

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Posted 26 November 2019 - 10:52 AM

Blue motor 6-cyl in VC/VH/WB etc. had a moulded by-pass hose which will do the job. It fits over the 2 nipples on the manifold side of the thermostat housing.

 

Mackay p/no. CH1170.

 

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#12 claysummers

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Posted 26 November 2019 - 12:07 PM

Some times I think I should be more patient, shut up and wait for Dr Terry to chime in. 8(

But where is the fun in that. 8)

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#13 Gatti

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Posted 26 November 2019 - 12:34 PM

Thanks again.

 

I'll go with the plugs as it will look neater and just keep an eye on them



#14 grumpy xu1

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Posted 26 November 2019 - 07:42 PM

Tap them, fit grub screws & sealent as stated, put caps over the top, never have a problem. I've had those caps split a few times, shit things.

#15 S pack

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Posted 26 November 2019 - 08:03 PM

Ive had them on several engines never had one blow off yet

I put caps on mine many many moons ago when the heater core decided to leak. Probably had them on for a couple of years until I got around to pulling the heater out and having the core replaced.

Never had a problem. I think I might still have them. They were from GMP&A.






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