If you have a competent shop that has a set of carb jet drills, the finest one clears out the orifice perfectly. It is smaller than a human hair. Adam Puzerewski 81 westy -----Original Message----- From: David Beierl <dbeierl@IBM.NET> To: vanagon@GERRY.VANAGON.COM <vanagon@GERRY.VANAGON.COM> Date: Tuesday, May 09, 2000 6:03 AM Subject: Re: [VANAGON] Non-cooling Fridge on Propane
>At 21:24 5/8/2000, W. Silva wrote: >>fine on A/C and D/C though. I called an RV shop that has a certified >>Dometic tech and he said it sounds like a dirty burner orifice and suggested >>that we blow it out with compressed air and it should be ok. We are ablut > >Considering the amount of trouble that orifice is to get to, I'd suggest >something along these lines: > >1) open up the combustion chamber and observe the flame in the dark first, >with particular attention to its height. > >2) If you have access to a stereo microscope, examine the orifice. > >3) Clean orifice with alcohol as instructed by Dometic, then blow out with >compressed air ditto. Do not touch the orifice with anything solid. If >you can't examine the orifice, repeat cleaning/blowing several times. > >4) Examine again if you have the scope, and repeat cleaning as >necessary. Someone on this list (Marshall Ruskin?) had to repeat the >alcohol soak a ridiculous number of times before the orifice opened up. > >5) Install and once again observe the flame, comparing against your >previous measurements. If the flame is now twice as big or whatever, >button it up in confidence that you've actually accomplished something. > >6) I've been using high-temp RTV very successfully to replace the silicone >rubber combustion-chamber gasket that Bus Boys want $50 for... > >cheers >david >David Beierl - Providence, RI > http://pws.prserv.net/synergy/Vanagon/ >'84 Westy "Dutiful Passage" >'85 GL "Poor Relation" |
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