Davco 382 Filter
Davco 382 Filter |
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| trucksaledave 03 March 2011 08:29 PM |
Most people do not know that their is a check valve in the inlet side of the filter that will go bad. It will allow fuel to drain back into the tank. Will cause hard starting. It is plastic and does wear out. Just another wear item
Also, you should NEVER see bubbles in the fuel bowl, it is sucking air somewhere between the tanks and filter. Fuel lines do dry out and leak fuel or suck air. Just in the last two weeks I have seen all these problems on older tractors. |
| D and J 04 March 2011 11:05 AM |
Interesting post Dave,
Two times in the past year, people have looked at my 382 and made comments like "how come your bowl is full of fuel" "where is the air gap?" I always thought that air in the bowl was bad, thanks for affirming that thought. |
| HERO Maker 04 March 2011 11:16 AM |
Doug, Dave is talking about bubbles coming up from the bottom of the unit, not the air towards the top of your unit. If your fuel is near the top, you probably need a filter change. I thought you just had a PM done! How much have you driven it since the change? They probably refilled it on the high side, and it may settle down with driving. |
| HERO Maker 04 March 2011 11:18 AM |
Dave, please explain "older" tractors. Thanks, |
| Jack Mayer 04 March 2011 11:21 AM |
Like what you have, Rocky.... |
| D and J 04 March 2011 11:21 AM |
Rocky, Filter was last changed about 10 months ago, and there has never been air at the top. How much of an air gap is there supposed to be? Didn't see your truck at Valley yesterday, hope it is running great now. (oh, and I did see a few used 382's w/o coolant connection while I was walking through their rear graveyard) |
| Bill B 04 March 2011 12:17 PM |
D J Filter should start off full of air and just about 1" of fuel at the bottom of the filter media. As the filter media plugs, the fuel should rise. When the fuel reaches the top of the filter cartridge, time to replace, filter plugged. |
| Hogrydr 04 March 2011 12:40 PM |
Doug Go out and open the drain valve under the 382 filter, drain about half the filter into a container that won't melt with diesel fuel close the drain and start and run the truck and about 10-15 min and see where the fuel level in the filter is, should not go back to the top, if it does the filter is plugged and needs changing Jim PS |
| Letz4wheel 04 March 2011 12:52 PM |
There are 2 filters for the Davco. I am not sure about the years but there is a "pre 19XX and a post 19XX. The earlier year filter has a finer mesh and will show clogged much earlier. I always look for the later filter and have had great luck with it. |
| D and J 04 March 2011 01:47 PM |
OK, I just went to drain some of the fuel, and low and behold, the fuel level was actually at the bottom of the filter. Some strange looking stuff did come out of the drain. Looks like a few drops of motor oil, some water, and fuel. (I would guess 5-10% was water, rest fuel)
Started the truck, and fuel level did not increase, but I only let it run for a minute. Heading back outside to let it run longer. I guess the bowl is just colored the same a fuel, so it looked like it was full. |
| Hogrydr 04 March 2011 02:26 PM |
Doug That's good, just keep and eye on this and after you drive a couple hundred miles or so drain it again and see if you get water, if so you might want to take a coolant sample and have it checked for oil. Jim |
| D and J 04 March 2011 02:34 PM |
Just finished driving around some, and the fuel level is still just about at the black seal ring at the bottom of the glass bowl, no bubbles, so I guess all is fine.
Will check what comes out when we leave Retama in April |
| HERO Maker 04 March 2011 02:49 PM |
Doug, If you drain anymore out of the bottom, make sure you have some fuel to put back into the top of the unit. As Jim said, you should have about an inch at the bottom of the glass (plastic see thru part). Sounds like you may be a little low now. Maybe the other guys will respond. My truck is still at Volvo. They have had so many 670s come in for (make ready for resale) that I guess they used up the drag links, and are waiting for some to come in today. They are also running the truck a lot to get any fuel left in the coolant out. Maybe today or next week. Oh well |
| Hogrydr 204 March 2011 03:43 PM |
Doug The level is fine just don't drain it dry ....... |
| Hogrydr 04 March 2011 03:47 PM |
Hey Rocky What you having done, injector cups ????? If so I'll take a couple trips before you get it all out, maybe a couple hundred miles or more .... |
| HERO Maker 04 March 2011 03:56 PM |
Thanks Jim. All cups (coppers) replaced along with injector O-rings. I guess it will take a while to get it all out of the coolant. Wondering when I should change the coolant filter, and also the fuel filters. They only put 2 gallons of coolant (yellow) into the system and the rest water in prep for flushing it all out again in about a week or so. This might be the first time I have heard of the yellow coolant. Thought it all was red or green? |
| Bill B 04 March 2011 03:57 PM |
Doug Look deep into your tanks if you can, with a strong flashlight. A little bit of black 'stuff', asphalt, water, dirt, other crap. I have maybe a cup in each tank. If you are running while filling or just after (and we all do), this is the bottom of the tank in the filling station. We get a bit, we stir it up when filling and it gets pulled into the fuel system. Duh, it's why we run filters. Everything sounds right - PS I use that drain cock a lot more. about right amount of diesel to start a bon fire, gets rid of the stuff. Just saying |
| Bill B 04 March 2011 04:00 PM |
Rocky If you go with the red coolant, make sure the filter does not have any SCA additive pellets in it. SCA is for the green and it does not mix well |
| HERO Maker 04 March 2011 04:03 PM |
Thanks Bill. It is a Volvo filter on there now, but I will have them check to see which one it is. |
| Hogrydr 04 March 2011 04:30 PM |
Rocky Who did you injector cups ....???? |
| HERO Maker 04 March 2011 04:33 PM |
Valley Volvo.
You still in Retama? |
| Hogrydr 04 March 2011 04:52 PM |
 No in Meridian, .going to Mardi Gras tomorrow, Party Time !!!! (Laissez les bons temps rouler) The anti freeze is compatible to mix so they can flush and add new. They probably want to make sure they have a good fix and no O-ring problems, so they don't contaminate the new coolant .....; |
| trucksaledave 04 March 2011 08:33 PM |
WELL, to me older is pre-EGR 2003 and back and the newer is 2004 EGR and up. Fleets are just not getting fuel mileage or LTO (life to overhaul) out of the newer engines. In most cases NEW and IMPROVED is not always best. I will always try to own the older trucks for my use, not because of purchase cost but for the pre-EGR engines. JMO Dave |
| HERO Maker 04 March 2011 10:00 PM |
Thanks Dave. Thought that might be the case, and the year breakdown, especially after Jack chimed in. Thanks. All I need is another 100K or so out of this and I'll be a happy camper |
| Jack Mayer 05 March 2011 11:13 AM |
Well, by then you will have a rebuilt truck. Everything working now???? |
| HERO Maker 05 March 2011 12:03 PM |
Haven't picked it up yet. They used up the drag links that were there. Maybe Monday. Or it will be late next week.
Traveling north a little to look at a couple of enclosed trailers. Getting close. |
