You should never put anything metal into a brass jet. That said, I use a
single bristle from a wire brush to clean these tiny orifices.

Mark

Adam Puzerewski wrote:
>
> 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"