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Mike Whiskey
Member Since: 23 Dec 2009
Location: Cambs
Posts: 14
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Metering pump Interrupted |
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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
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3rd Dec 2021 4:40 pm |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6309
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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
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3rd Dec 2021 8:01 pm |
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Mike Whiskey
Member Since: 23 Dec 2009
Location: Cambs
Posts: 14
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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....
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6th Dec 2021 1:01 pm |
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Motolab
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1820
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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.
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6th Dec 2021 9:26 pm |
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Mike Whiskey
Member Since: 23 Dec 2009
Location: Cambs
Posts: 14
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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
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9th Dec 2021 3:11 pm |
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