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05 /19/ 26, 2:35pm

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Subject: 1982 DD 6V92T Author: Bill [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 12/ 3/ 06, 3:33am We,re the new owners of a 1983 PT35BB with a DD6V92T diesel 160Miles and runs great. After a couple trips the BB is in storage and I've been running the Bird weekly to keep charged up and ready to go. Yesteday the motor cranked up and run great, but there was was about 1/2 gal of black oil and water that come out of a round tank under the engine where several hoses run from the engine. This is my first BB and exsperance with DD6V92T, but this don't seem normal, but tank appears to be designed to collect discharges. [ Next Thread | Previous Thread | Next Message | Previous Message ]

Replies:

[> Subject: Re: 1982 DD 6V92T Author: Bob Dilks [ Edit | View ] Date Posted: 12/ 3/ 06, 10:33am It appears you have noticed a discharge from the air dryer. Based on the discharge you describe it is vitally important you have the airdryer serviced quickly. In all likelihood your dryer is a Bendix Model AD-2. Since a new dryer can be purchased for near the cost of a professional service, I suddest you consider replacing the existing unit with a Bendix AD-9 model which has a screw on canister to ease future servicing. [ Post a Reply to This Message ]

[> [> Subject: Re: 1982 DD 6V92T Author: Bill [ Edit | View ] Date Posted: 12/ 3/ 06, 1:11pm Thank you for the info. [ Post a Reply to This Message ]

[> [> [> Subject: Re: 1982 DD 6V92T Author: Ernie Ekberg [ Edit | View ] Date Posted: 12/ 3/ 06, 4:06pm That might be also, your spitter tube accumulation tank. Mine is located close to the rear bumper. Ernie- 83PT40 [ Post a Reply to This Message ]

[> [> [> [> Subject: Re: 1982 DD 6V92T Author: Bill [ Edit | View ] Date Posted: 12/ 3/ 06, 6:11pm Is it normal for oil and water to come out of the tank with the plug missing.There is not any treads in the hold so I assumed it was to be left open since the waterand oil seems to be under a little pressure like spitting. There was about a 1/2 gal of water and oil came out of the tank and then it stopped. Check oil level which was OK, the water was clear so I assume it was condensation for some where. The engine starts and runs great, but I dont like the engine spitting out the oil. [ Post a Reply to This Message ]

[> [> [> [> [> Subject: Re: 1982 DD 6V92T Author: Bob Dilks [ Edit | View ] Date Posted: 12/ 15/ 06, 5:54pm What tank are you talking about? If oil and water are discharged together it sure sounds like the air dryer. Its very purpose is to remove those items from the pneumatic system. I cannot stress too greately the need to service this unit. I have never heard of a half gallon of oil and water being discharges but if the dryer is failing and you end up with oil and water in your air brakes plus all you pressure guages, air horns, water purge, step slide, etc there likely isn't enough money around to make you happy again. [ Post a Reply to This Message ]

[> [> [> [> [> [> Subject: Re: 1982 DD 6V92T Author: Bill [ Edit | View ] Date Posted: 12/ 16/ 06, 2:37am I think the 2 hoses going to the tank is from the air box on the 1982 DD 6VT92 to the spitter tank. The service manual shows a pressure releave valve on the hoses from the engine air boxes, but I've not been able to locate them. The oil is black so I assume it is from the engine. The water is clear so I would assme it is condensation. I did read small amounts of water and oil may come from the air box on the 82 DD 6VT82 engines. The engine runs great and the oil level has not changed, but I'm concerned about the oil discharge. The last time I run the engine only a small amount of black oil came out when I frist started the engine. [ Post a Reply to This Message ]

[> Subject: Re: 1982 DD 6V92T Author: Bob Dilks [ Edit | View ] Date Posted: 12/ 23/ 06, 9:11am I noticed you are running the engine every week to keep the coach charged and ready to go. Unless you are prepared to drive your coach about 40 miles you should not start the engine. Weekly start ups will only add water to the engine that will not be evaporated by engine heat produced by an hour's drive. It is far better to let a diesel engine sit that start it without an extended drive. So far as keeping your coach charged, you should leave that up to the battery chargers. [ Post a Reply to This Message ]

[> [> Subject: Re: 1982 DD 6V92T Author: Bill [ Edit | View ] Date Posted: 12/ 24/ 06, 7:30pm Thanks for the advice, I noticed the spitter tank on the bottom has what appears to be some type of removeable bushing that extends up into the tank about 2". It looks like it is designed to be removed to drain any oil or water in the tank below the 2". I plan to remove the bushing to determine if the oil and water is below the bushing and has accumulated over time above the 2". [ Post a Reply to This Message ]

[> Subject: Re: 1982 DD 6V92T Author: Rich Expert Diesel [ Edit | View ] Date Posted: 03/ 26/ 07, 3:04am That is a air box discharge collector. It should be serviced (emptied) at each oil change. It keeps air box discharge from hitting ground. When it's full is will spill over. If it fills up to quikly you should have engine checked. Richard [ Post a Reply to This Message ]

[> Subject: Re: 1982 DD 6V92T Author: Rich - Expert Diesel [ Edit | View ] Date Posted: 11/ 9/ 07, 4:51am That tank is a air box discharge tank. It collects condensed fuel vapors and water ( anytime you compress air you will get some water from the supercharger) The tank is over full. You should service it a every oil change. The tank is to keep air box discharge from dripping on ground. Yours is over full. It;s a good system, but only if you know about it. Rich [ Post a Reply to This Message ]