home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: rec.autos.vw
- Path: sparky!uunet!spsgate!mogate!newsgate!wdc!mark
- From: mark@wdcwdc.sps.mot.com (Mark Shaw)
- Subject: Re: Smoky Gasoline Heater... Repairable?
- Message-ID: <1992Nov20.002342.29530@newsgate.sps.mot.com>
- Keywords: Van, Heat, Gasoline, Fumes, Boom!
- Sender: mark@wdc (Mark Shaw)
- Nntp-Posting-Host: 223.199.55.11
- Organization: Motorola Western MCU Design Center, Chandler Arizona
- References: <1992Nov13.030208.29219@infonode.ingr.com>
- Date: Fri, 20 Nov 1992 00:23:42 GMT
- Lines: 49
-
- |> IsabelleIn article <1992Nov13.030208.29219@infonode.ingr.com>, macklowj@infonode.ingr.com (Jim J. Macklow) writes:
- |>
- |> Are the gasoline heaters in vans servicable? My '79 puts out
- |> hot smoky air, and I'd like it to put out hot, smoke-free air.
- |> This van has leaked a lot of oil in the past (and even a bit
- |> now) into the heater boxes, so I'm not sure if the smoke is
- |> the heater not completely combusting and leaking, or if the
- |> oily air the heater boxes are feeding the furnace has coated
- |> its innards with sludge, which burns off.
- |>
- |> The amount of smoke put out isn't much; when in motion on the
- |> highway, I can smell it. If I turn on just the heater with the
- |> engine off (and van parked), it takes about 10-15 minutes to get
- |> the van filled with smoke that's visible.
- |>
- |> Anyone have any ideas? I have visions of turning this van into a
- |> four-season tripmobile, and the heater is central to comfort in one
- |> season and parts of two others, so I'd like to fix this problem, not
- |> disconnect it.
- |>
- |> Does Bentley have any info in the Van manual?
-
- The problem is not the smoke you smell, but whether there is carbon
- monoxide in the heated air!! I am assuming that you have one of the
- Stewart-Warner Southwind gas heaters that were popular in the '60s
- and '70s. I had several cars with the accessory when I lived in
- Indiana.
-
- You should not be getting smoke in with your heated air unless the
- burner can has a leak or the unit is sucking the burner exhaust back
- from the outside. I once had a similar result due to the exhaust
- pipe from the gas heater rusting thru near the body. The exhaust
- then did not get pushed out under the car and it got sucked back thru
- the insulating grommet around the pipe and then into the air inlet
- for the fresh air drawn into the burner and then into the car. When I
- replaced the exhaust pipe, the problem went away.
-
- Check your burner housing for rust and/or cracks and make sure that the
- burner exhaust is complete out to the outside edge of the vehicle.
-
- Somewhere I may still have the Stweart-Warner installation manual, as I
- installed at least one unit myself, using scavenged parts from the junk
- yard (on a 62 bug). I take a peek tonight.
-
- Until you find the problem, I would suggest that you drive with plenty
- of fresh air coming into the vehicle. You may be getting unhealthy
- levels of CO with that smoke.
-
- Mark
-