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Rear heater & 2.5 subie
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yycwesty
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PostPosted: Thu Nov 01, 2012 3:45 pm    Post subject: Rear heater & 2.5 subie Reply with quote

2.5 subie installed and would like to pull the rear heater under the seat. Do I form a loop with the lines that are left in or cap each one off

Cheers
Al
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GrindGarage
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PostPosted: Thu Nov 01, 2012 3:59 pm    Post subject: Reply with quote

plug the lines. If you put them together the loop bypasses the front heater. If you think it will never be put back remove the T fittings from the main hoses (I had one snap in 10 deg F)
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yycwesty
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PostPosted: Thu Nov 01, 2012 4:13 pm    Post subject: Reply with quote

Hey grind

What did you use to plug the lines

Al
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presslab
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PostPosted: Thu Nov 01, 2012 4:21 pm    Post subject: Reply with quote

It depends on how your cooling system is configured. My cooling system with the KEP method must have a bypass in the heater circuit. Plugging the lines would cause the engine to overheat.

Best thing is to ask whoever did your conversion.
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dobryan
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PostPosted: Thu Nov 01, 2012 6:35 pm    Post subject: Reply with quote

presslab wrote:
It depends on how your cooling system is configured. My cooling system with the KEP method must have a bypass in the heater circuit. Plugging the lines would cause the engine to overheat.

Best thing is to ask whoever did your conversion.


X2!

DON'T plug those lines until you know how your feedback to the thermostat works. If it uses the heater loop you must leave the lines connected or you will overheat or at the least run too hot. If the thermostat feedback loop has to go thru the front heater it will fool the thermostat into thinking that the engine is running at a much lower temp than it really is. Please talk to the engine conversion shop first.
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Franklinstower
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PostPosted: Thu Nov 01, 2012 6:37 pm    Post subject: Reply with quote

presslab wrote:
It depends on how your cooling system is configured. My cooling system with the KEP method must have a bypass in the heater circuit. Plugging the lines would cause the engine to overheat.

Best thing is to ask whoever did your conversion.


mine too, I have the Vanaru coolant system - the rear heater hoses must be connected if the heater is removed to provide the necessary water for the T-stat to operate.

If you have Tom Shiels Coolant plate at the T-stat housing, I think you can plug those rear heater hoses.

Paul
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dobryan
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PostPosted: Thu Nov 01, 2012 6:39 pm    Post subject: Reply with quote

Franklinstower wrote:


If you have Tom Shiels Coolant plate at the T-stat housing, I think you can plug those rear heater hoses.

Paul


Yes, that is correct. The Tom Shiels thermo bypass plate takes the heater loop out of the thermostat feedback system.
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Building a bus for travel in Europe (euroBus)
https://www.thesamba.com/vw/forum/viewtopic.php?t=695371

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GrindGarage
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PostPosted: Thu Nov 01, 2012 6:56 pm    Post subject: Reply with quote

I'm running smallcar setup with just front heater without rear tees and all good here tested 10f-100 deg
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Jake de Villiers
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PostPosted: Thu Nov 01, 2012 7:32 pm    Post subject: Reply with quote

+ 100 Make sure that your heater loop isn't the feedback circuit for the thermostat before capping those lines! You can always put a restrictor in there (1/4" ball valve) so you can control the flow.
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yycwesty
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PostPosted: Thu Nov 01, 2012 8:08 pm    Post subject: Reply with quote

actually looking to make a little more space. Talked to Hans tonight, from Vanaru, and he suggested looping the lines..

Al
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dobryan
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PostPosted: Fri Nov 02, 2012 7:57 am    Post subject: Reply with quote

yycwesty wrote:
actually looking to make a little more space. Talked to Hans tonight, from Vanaru, and he suggested looping the lines..

Al


Very Happy
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Dave O
'87 Westy w/ 2002 Subaru EJ25 and Peloquin TBD

"To travel hopefully is a better thing than to arrive." Robert Louis Stevenson

MD>Canada>AK>WA>OR>CA>AZ>UT>WY>SD
https://www.thesamba.com/vw/forum/viewtopic.php?t=620646

Building a bus for travel in Europe (euroBus)
https://www.thesamba.com/vw/forum/viewtopic.php?t=695371

The Western Syncro build
https://www.thesamba.com/vw/forum/viewtopic.php?t=746794
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yycwesty
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PostPosted: Tue Sep 17, 2013 12:36 pm    Post subject: Reply with quote

You bet but if you notice on that post last year my concern was to loop or not whereas this post I wanted to know the best way to work on the pipes from the top or the bottom
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