I think my DD 8.2 is toast.

Topic: I think my DD 8.2 is toast. (Read 4600 times) previous topic - next topic

Re: I think my DD 8.2 is toast.

Reply #25 – September 29, 2015, 08:27:19 pm

Michelle, closest would be in Iron Mountain, but don't know if the engine could make it that far.

Re: I think my DD 8.2 is toast.

Reply #26 – September 29, 2015, 08:33:59 pm

Have you gone on any of the diesel forums? I saw they said some had problems with head gaskets, but believe yours already has the larger head bolts so should not be an issue, think it is fuel related as started with bad fuel. There are many sites that have service manuals for this engine. Thought maybe someone on one of the forums might know where there is someone who knows that engine.

Re: I think my DD 8.2 is toast.

Reply #27 – September 29, 2015, 08:42:48 pm

The 8.2 can be made into a very fine reliable engine I am told, I have very little sperience with them. Know they have gotten a lot of bad mouthing, some deserved. Do not think Tenn RV works on them. But there are a very few who do know and love those critters.
Me, I used to love the 2 stroke DDC, but this ISM500 is winning me over fast.

Re: I think my DD 8.2 is toast.

Reply #28 – September 29, 2015, 08:55:52 pm

I had done a "kill" dose of biocide about a week ago. Today, while taking the coach down to Truck Country, the engine ran a tiny bit better, didn't bog down more than once on the way down and once on the way home tonite. But, BUT, still the light blue exhaust which indicates something is still wrong.

Re: I think my DD 8.2 is toast.

Reply #29 – September 29, 2015, 09:05:15 pm

I worked on a grandvilla with a 3208 that had algae and put in a biocide it was driven about 150 miles then would not run, went down and changed both fuel filters and drove it back. I also had 2 extra sets just in case. On our 84 foretravel with the 3208 I always carried 2 sets of fuel filters at all times as it had had algae in it when we bought it. When it would start to bog down, stop and change the primary filter and sometimes also the secondary filter. Put on about 20,000 miles on it

Re: I think my DD 8.2 is toast.

Reply #30 – September 29, 2015, 09:33:01 pm

The last time I changed the filters there was no apparent algae, either in the filters or in the fluid I drained from the filters.
But the blue exhaust continues.

Re: I think my DD 8.2 is toast.

Reply #31 – September 29, 2015, 09:44:42 pm

Quote from: nitehawk link=msg=210206 date=144357678 But the blue exhaust continues.[/quote

I'll ask one more time, then go stand in the corner : are you SURE you're not burning oil? Good luck. M

Re: I think my DD 8.2 is toast.

Reply #32 – September 29, 2015, 10:54:55 pm

8.2 has similar injection system as the 2smokes. I think you just need a slightly different tool.

Did you check oil for fuel contamination? Still sounds like injector problem to me. But what the heck do I know.

After early 80's the 8.2 got bigger head bolts and most of the "problems" were resolved. People either love them or hate them. The are sensitive to overheating, I think.

Re: I think my DD 8.2 is toast.

Reply #33 – September 29, 2015, 11:34:37 pm

You can try the website [www.nttsbreakdown.com] to find different repair facilities in your area. Customer service 800-288-0002
Directory provides drivers and dispatchers current information on repair shops nationwide including those offering 24 hour road service. We had a diesel mechanic give us this website when we were stranded along the road near Hinckley, CA (Erin Brockovich territory, and near the middle-of-nowhere).

Re: I think my DD 8.2 is toast.

Reply #34 – September 30, 2015, 10:54:09 am

Thanks for the leads everyone!! Absolutely love everybody on our website!!

Oil level is constant, no change in color or viscosity as far as I can tell.

Got a lead/email from Mike Betti in Iron Mountain. (interstate Power Systems). Going to call him this morning. He is quite a ways away but will pass problems to him as he said that they do & did work on the 8.2T engines.

Also going to call the school bus company in our area.

Re: I think my DD 8.2 is toast.

Reply #35 – September 30, 2015, 12:27:24 pm

You might check with your local electric company as a lot of the bucket trucks made back during the fuel crunch had the 8.2. Either there shop mechanic was trained to work on them or they should know who they farmed the work out to. In fact some of our local REA coops still have some of those bucket trucks.

Pamela & Mike

Re: I think my DD 8.2 is toast.

Reply #36 – September 30, 2015, 01:26:53 pm

Persistence pays off!!
First called the service manager at King's Campers where we bought the coach. He referred me to ELM Truck Repair. They haven't worked on engines like our in years and no longer have the tools. They referred me to a firm southwest of Antigo, quite close to home, where the owner (Dick Skarlupka) said that "Yes, we have worked on these engines a lot. There are quite a few used in field, stationary applications also." He--HE referred to my engine as the "Fuel Pincher" so he is knowledgeable re our engine.
They are quite busy now, but will call when he sees an opening--about 2-1/2 weeks.

Thanks again everybody.

Re: I think my DD 8.2 is toast.

Reply #37 – October 08, 2015, 05:28:06 pm

Well, we went for a ride just to see how to find the 8.2T mechanic and not get on some really hilly roads that a sick engine couldn't climb.
Found the place. They had a county dump truck inside being worked on, a different county fire truck ready for service, and several logging trucks waiting. Also inside was a VERY large diesel farm tractor in the back and a large red painted diesel on an engine support dolly.
Didn't get to talk to Dick, as he was gone somewhere, but did talk to the young mechanic and he knew nothing about my conversation with Dick but did say that they did work on quite a few of 8.2T DD engines.
Confidence level went up but now getting impatient about getting our "baby" off the sick list and back to full health. Only 1-1/2 weeks left to wait before surgery--I hope!!

Re: I think my DD 8.2 is toast.

Reply #38 – October 08, 2015, 07:29:21 pm

Sounds like it may be worth the wait, get the benefit of their expertise rather than someone else learning on your dime. Maybe camp in their parking lot so they don't forget about you

Re: I think my DD 8.2 is toast.

Reply #39 – October 08, 2015, 10:52:14 pm

If it has a dead miss, I'd check the exhaust manifold (temp) at each cylinder.
At least you will know which cylinder is giving you trouble.

Do you have a wet exhaust? If so, you have a bad injector and trouble if you continue driving.
If you have a plugged injector the exhaust pipe will not be wet and that cylinder will be cold and show up as a dead cylinder.

Smell the exhaust to determine going on.
Blue is an oil issue. Black is excessive burned fuel. Light grey is unburned fuel.

The last thing I'd do is keep driving it until it's repaired rather than take a chance on hurting something (like a piston).

Pull the injectors if you get this far and have them tested. If you find a out of spec injector, fix it (only) and put it back together.
Go to ebay and look for a set of new/rebuilt injectors. As old as the production date on the 8.2 is, a question to a few of the injection services may find you a set of new injectors.

The PN for the injector you MAY be needing is 5229850 w/an R if it's rebuilt (aprox. $80.00 per)

Good Luck.. pc

Re: I think my DD 8.2 is toast.

Reply #40 – October 09, 2015, 09:49:08 am

Pocketchange, thanks for the information.
Now I am really confused! The crankcase oil level remains at the full mark. The radiator two indicator bulbs show radiator is full. The exhaust smells very, very strong diesel fuel, and the exhaust is, when seen, a light blue, almost white, in color. Thin enough to see thru until the engine "hiccups" and then slows down to about 30 MOH. Then exhaust volume increases until I cannot see thru it.
Idling here in the driveway exhaust is clear but smells strong of diesel.
I think today I will check exhaust temp at the exhaust manifolds & see if there is/are "cold" exhaust ports. (guess I won't use my fingertips, tho)

Re: I think my DD 8.2 is toast.

Reply #41 – October 25, 2015, 10:00:09 pm

Did you get the DD fixed? Very interested to hear how it ended up.

Re: I think my DD 8.2 is toast.

Reply #42 – October 26, 2015, 11:17:48 am

Sorry, no, not yet, still waiting for the mechanic to call and tell me to bring it up. I did call him a week ago and he told me he hadn't called because his shop is still full and probably this week.

I did start the coach about a week ago and let it warm up for about 45 minutes. I then checked exhaust manifold temps with my remote thermal sensor. 1 & 2 were running much colder than 7 & 8. Temps seemed to get higher the further towards the transmission I went.
Still fires right up when starting, revs up to 1500 rpm with no problem, then starts running rough. Strong diesel fuel smell at all times. Oil level remains constant. Same with radiator antifreeze level. No puddles on the ground other than rain.
Right after this engine problem started the DW commented that she thought the engine was putting out a lot of "lifter" noise. Me, in my "infinite" wisdom replied that the engine was cold and that was typical diesel noise and she hadn't heard it before because she had never stood that near to the back end of the coach. (Sure hope I won't have to eat my words!!)

Re: I think my DD 8.2 is toast.

Reply #43 – October 26, 2015, 11:39:49 am

Try pulling off your valve covers and look for anything unusual on a cylinder compared to the other cylinders,had a similar
problem with a generator offshore a few years back,will do some research.

Re: I think my DD 8.2 is toast.

Reply #44 – October 26, 2015, 02:17:36 pm

Take temp gun readings while it is running rough.

Re: I think my DD 8.2 is toast.

Reply #45 – October 26, 2015, 03:12:17 pm

John44, thanks for the suggestion but I will wait & let the mechanic pull the covers. To take of the rocker arm covers I would have to remove the Harrison AC compressor, the alternator, and assorted air intake hoses. And if I do find something wrong I would just have to put everything back just so I could drive the coach 28 miles to have the mechanic repeat what I did. AND, AND--my back and my shoulder tell me to just say:"NO!"
We have snow flurries in our forecast for this week and the coach sits outside so another reason to let the mechanic work on it.

Re: I think my DD 8.2 is toast.

Reply #46 – October 26, 2015, 03:21:02 pm

Quote from: nitehawk – October 26, 2015, 03:12:17 pm

John44, thanks for the suggestion but I will wait & let the mechanic pull the covers.

Good point, I had a service & repair business for 30 years and if someone came into the shop with a bucket of parts, what could have been a quick fix suddenly became spendy!

Re: I think my DD 8.2 is toast.

Reply #47 – October 26, 2015, 04:31:10 pm

You touched it and tore it apart and then brought to me usually meant I charged more LOL

Re: I think my DD 8.2 is toast.

Reply #48 – October 27, 2015, 09:26:47 am

Quote from: nitehawk – October 26, 2015, 11:17:48 am

Right after this engine problem started the DW commented that she thought the engine was putting out a lot of "lifter" noise. Me, in my "infinite" wisdom replied that the engine was cold and that was typical diesel noise and she hadn't heard it before because she had never stood that near to the back end of the coach. (Sure hope I won't have to eat my words!!)

Never underestimate the ability of the DW to recognize that "something has changed". My wife has recognized more than one problem in our car, around the house, and in the coach, simply because "it sounds different". She doesn't have any idea what has changed, or why (that's my job), but she sure as heck can tell "it" sounds "funny".

PS: hope your problem turns out to be something simple (and cheap) to fix!

Re: I think my DD 8.2 is toast.

Reply #49 – October 27, 2015, 09:46:33 am

Thanks Chuck.
Because it is a little known fact that wives live longer than husbands (

), and there are mechanics that do take advantage of people who are ignorant of the mechanical side of their vehicle, I have, for almost our entire married life (52+ years), insisted that the DW understand and see what I am doing--and why-- to our vehicles.
I heard enough about how her mother was taken advantage of due to her ignorance about her car.

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