Juday1951 Posted June 18, 2010 Report Share Posted June 18, 2010 Last night, I decided to clean out and change the oil in the air filter. While I was at it, I sprayed some carburetor cleaner down and around the valve and the linkage (since I have this low rpm sputtering problem when I give it gas in low gear). With the air filter off, I started the truck and it ran great. No signs of the carburetor puttering, or wanting to stall. So I thought to myself, hey that's great! All it needed was a little cleaning and it's back up and running like a champ. A few minutes later, I assemble the air filter back on there and fill with oil up to the "Oil Level" mark. I start the truck up again and it's like nothing changed from when I started. It still struggles, sputters and gags when you first apply the gas in low gear. But, once you get up into 2nd and 3rd, there aren't any problems. So, I'm asking the guru's here what your thoughts on this problem might be. Thanks. Kevin Quote Link to comment Share on other sites More sharing options...
1949dakota Posted June 18, 2010 Report Share Posted June 18, 2010 I'm no guru, but I'd say the filter media thats in the top has become plugged and not letting enough air in at low rpm but when your on your way there is enough suction to bring air in. Quote Link to comment Share on other sites More sharing options...
Juday1951 Posted June 18, 2010 Author Report Share Posted June 18, 2010 Is there any way to replace that media? Do they sell it in the aftermarket? Quote Link to comment Share on other sites More sharing options...
1949dakota Posted June 18, 2010 Report Share Posted June 18, 2010 also , my fuel line runs along the bottom of my frame rail, at some point in time the suspension was bottomed out and the rear spring shackle has almost completely flattened the line. I also have the "sputter". slowly trying to figure it out. might be worth a look Quote Link to comment Share on other sites More sharing options...
1949dakota Posted June 18, 2010 Report Share Posted June 18, 2010 (edited) there are lots of threads, I don't know about changing it, looks like most guys switch to paper filters. try "search" but be ready to spend some time , like i said lots of info on the subject of air filters Edited June 18, 2010 by 1949dakota spelling Quote Link to comment Share on other sites More sharing options...
JBNeal Posted June 18, 2010 Report Share Posted June 18, 2010 I submerged the air filter in a bucket of diesel for about 3 days on the '48 & '49, both had been parked in a field in different parts of TX for more than 20 yrs...draining the filter into that bucket, they both dripped out a good chunk of residue. Rinsing in kerosene per the manufacturer's instructions might not get all the crud in the cellulose, and if the filter housing was 'dry' while the beast lie dormant, the thing might have filled up with bugs or dobbers' nests or the like. I am opting to convert to the paper element because some of us klutzenheimers have spilled a fair amount of that oil bath on the side of the truck or forgot to tighten the base bolt and spilled the contents on the motor rounding that first right turn. Either way, them things can make a mess, whereas the paper is a tad more forgiving. Quote Link to comment Share on other sites More sharing options...
Juday1951 Posted June 18, 2010 Author Report Share Posted June 18, 2010 I've thought about doing the conversion over to the paper element, but the illustrations I've seen on here of the air intakes differ from mine. Not by much, but still different... Quote Link to comment Share on other sites More sharing options...
carls 49 Posted June 18, 2010 Report Share Posted June 18, 2010 i would check and maybe replace that fuel line. i replaced my oil bath with a paper filter, simple (cheap too). runs great. Quote Link to comment Share on other sites More sharing options...
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