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DISCO4.COM > Webasto Fuel Burning Heater

Metering pump Interrupted
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Mike Whiskey
 


Member Since: 23 Dec 2009
Location: Cambs
Posts: 14
Metering pump Interrupted

Hi Folks,

Having managed to fail to get to the issue all summer I've finally been pushed I to looking at the FBH,

Fault originally was the unit starting then self cutting g as it could not detect a flame. I stripped the unit as per Robbies excellent guide and discovered that the ceramic was cracked.

I decided to get a new unit, and got a guaranteed good unit from eBay.

I've fitted this and it doesn't even start, the fault reported is as per the title. Searching the forums suggests that this is likely to be a stuck pump or wiring issue, but it worked for the old unit, so I am wondering whether something internal to the pump could cause this as I am obviously somewhat suspicious of the replacement unit.

Grateful for any advice

MW  
Post #22652873rd Dec 2021 5:40 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6233

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Are you sure the new one was off a D3 and not a D4, try swapping over the circuit board off the old and see if that makes it fire up.

Flack Thumbs Up  
Post #22653183rd Dec 2021 9:01 pm
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Mike Whiskey
 


Member Since: 23 Dec 2009
Location: Cambs
Posts: 14

I haven't had a chance to look at this further yet, but I started up the truck to move it, and the FBH fired up! Very smoky, but it ran, and seemed to stay running.

Will investigate further later....  
Post #22657206th Dec 2021 2:01 pm
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Motolab
 


Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815

Netherlands 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Very smokey, is a polluted heater… they are getting polluted when they run shorter than 10 minute’s.

So when “moving” the motor or go for a quick short run… Let it always run 10 minutes before stopping the engine…. Always do this when it is colder than 7 deg celcius.. Best regards
Harold

Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year

Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. Wink  
Post #22658106th Dec 2021 10:26 pm
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Mike Whiskey
 


Member Since: 23 Dec 2009
Location: Cambs
Posts: 14

Heater continues to function, no longer smokey.

Seems running the engine did something to prime the lines or otherwise resolve the fault, and then a couple of longer runs have cleaned up the heater.

Thanks all for the advice.

MW  
Post #22662949th Dec 2021 4:11 pm
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