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| dgardel Member Since: 30 Nov 2008 Location: Veneto (Heart & Head) Posts: 3586  
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[quote="jst"]
Plumbing the Webasto like your description, you will lose part of the heat, that you can use into the cabin heater, because you drive the water to the cabin heater AND the EGR gas exchanger....... Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition 
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9th Oct 2012 8:56am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7709 
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twin pickup in Puma 110 tank in the end i decided to do this rather than use one pickup to feed two webastos so as not to have the potential problem of a lack of fuel supply issue. Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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13th Oct 2012 8:18pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7709
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Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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13th Oct 2012 8:18pm |
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| T1G UP Member Since: 08 Dec 2009 Location: Bath Posts: 3101  
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still waiting for my parts. hopefully be here for me next weekend
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13th Oct 2012 8:38pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7709
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presumably you could plumb into the heater vale return pipe instead of the input pipe thus heating the engine block first then the heater matrix?, Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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17th Oct 2012 10:20pm |
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| bpman Member Since: 21 May 2008 Location: Oslo Posts: 8069 
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don't see any reason why not, but on a puma, the hot/cold adjuster actually adjusts the flow of coolant through the internal heater rad
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18th Oct 2012 7:19am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7709
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agreed, the point being it will heat the engine first and then the heater matrix assuming the heater temp knob is turned off cold rather than the heater matrix first Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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18th Oct 2012 7:39am |
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| bpman Member Since: 21 May 2008 Location: Oslo Posts: 8069
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just to be clear, it probably does not matter which side of the matrix pipes you fit the feed, if the knob is set to blue, the inside will not get warm
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18th Oct 2012 7:51am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7709
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^^ thats my understanding too. i dont want the inside warm, i just want an engine pre warmer. but as i understand it if its plumbed into the the actual heater valvle block if the heater is off (ie on cold) then the coolant wont flow through the webasto?
i intend to fit it between the egr return and the return from to the engine. ie between the T piece that goes to the engine coming from the heater, and egr return, that way the webasto will have flow regardless of what the heater valve is on. Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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18th Oct 2012 9:14am |
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| Landlord Member Since: 27 Oct 2009 Location: Hampshire Posts: 582  
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Was about to post something similar. If you install on the input or output of the heater matrix you would have no flow when the heater is set to cold.
Don't know where the thermostat valve is on the Puma but it may also restrict flow through the engine until the coolant reaches a predefined temperature on the engine side of the thermostat. Where you plan on installing the webasto does it have continuous flow regardless of the thermostat ? 2007 TD5 90 Hard Top |
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18th Oct 2012 11:25am |
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| bpman Member Since: 21 May 2008 Location: Oslo Posts: 8069
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no, the pipe to the heater is a 3 way....
1. into the flow controller (the hot/cold knob) 2. out from the matrix 3. out from the matrix by-pass so, with the heater on cold the water will by pass the matrix and flow straight back out via the return pipe have a closer look at DG's pics.. On my 2010 puma, i have plumbed into the "in" flow into the matrix and when set to blue the water bypasses the matrix James - give me a call if you'd like to discuss |
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18th Oct 2012 11:36am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7709
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cheers BP man, didnt know that, so it makes little odds which pipes are used then.
may well go with the outlet of the heater valve still as it would then go direct to the engine first, plus there is a bleed screw at the top of the pipe, lastly its where LR install them from what i have seen. Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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18th Oct 2012 7:31pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7709
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with luck tomorrow it will go in Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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18th Oct 2012 9:59pm |
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| bpman Member Since: 21 May 2008 Location: Oslo Posts: 8069
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good luck tomorrow James !
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19th Oct 2012 2:15pm |
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