Indeed, WVO used at too high concentration at low temps might result in sticking rings and I agree that running it hard for a while on diesel is good idea to see if oil consumption and other things improve, but the oil burning might also be a high mileage issue on a 616 engine. Yes, they will last a million miles, but not without a bit of engine work. Try the easy stuff first as suggested, change filters, check fuel intake, run diesel only. But I suspect a new set of injectors will work wonders. Report back, these are the sorts of things we are curious about as a group. Without comparative studies, its an iterative process.

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1983 CD
1958 Studebaker Packard (being resuscitated)

Yes. If you loosen Fuel Injection Line Nut that Cylinder gets no Fuel. If that was the was making the noise or was one of the Injectors making the noise I would expect the noise do decrease.
Also if that Injector was not working very well and you cut off the Fuel to it it not working would not change how the Engine operates.

Yes. The Injectors job is to is to atomize the Fuel so that it is easy to burn. If it cannot do that all the Fuel will not burn and also it will burn late.

If you ar using the Stock Injector Spray Nozzles the little Nozzle Pintel has 2 holes Drill in it; see the pic.
Even using Diesel Fuel over time those wholes seem to plug up. I did not have the smoking issues but on my Car I had a lot of shaking durning idle. When I pulled the Injectors I found that all of those holes were plugged.

Also the Injectors I have pulled at the Junk Yard also mostly had those holes plugged.

The manual says the holes are there for idle and low speed low volume Fuel quanities.

WVO is thicker and more likely to plug up those holes.

Attached Thumbnails

 

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84 300D, 82 Volvo 244Gl Diesel

Thnaks for the ideas, I did not notice any real difference in clatter . . . when I loosened the injector nut, but the engine stumbled and seemed as if it was struggling to stay running, this was the same response on each and all injectors. (of course they all could be well used up too!)

What about the come and go clacking clatter? It seems to be no real rythem, it clatters for a bit then stops, then starts clacking/clattering again with no input from me!

I have run about 15 gallons of WVO total through it in the last 7k mi. . . .

If this is the problem, it is not worth it to me . . . I got it from the local salvage yard, which a local resturaunt brought . . . I don't feel like going to all the trouble of the filtering/de-watering setup, for the small amount I use . . .

I need to run to Tucson again this Friday . . . I should be able to use up the rest of the fuel (or most of it!) I just had a crazy idea! What if I ran it till I was out of fuel, then put 100% diesel in it, change the filters, prime it, and go from there . . . is it worth the hassle of being on the side of the road, trying to get it going, compared to empting the tank? I always carry spare fuel & both filters.

One more thing I just thought of . . . About 2 months ago I filled it up with about 12 gals of B100 bio-diesel, then bought another 5 gal in a can, and filled that in later . . .

Most of the time lately I have been in a hurry . . . so I have been keeping the hammer down, so I'm assuming that the majority of the excessive motor oil consumpyions is from high revs . . .

I would ussually only add a gal or maybe two at the most, just before a 150+ mile trip, and then fill up with diesel on the way home . . . so the first part would be a higher consentration of wvo, and very thined out by the time I added the 10-12 gals of diesel.

I'm still having trouble understanding the "starving for fuel" issue . . . if the tank screen or filters were plugging up . . .I would think (there I go again!) that it would idle fine, but high rpm with a load would be when the problem would show up.

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82 240D Manual 277K and still rolling!
02 Volvo S60 AWD For Sale

Shawn,

Filtering through paper towels definitely won't cut it for WVO use. Just as an example, I dewater in a heated upflow type system in a 55 gallon drum, then filter through a 5 micron filter. From there I go through a 2 micron filter into the tank. The gunk and water in WVO is what gets folks into trouble.

The B100 is a major wildcard in this too. Biodiesel is an amazing solvent for the gunk in your tank.

You should really change your fuel filters regardless of your current symptoms. The poorly filtered WVO along with introduction of B100 along with 10k miles on regular fuel is a recipe for plugged filters.

But before you do that, you can blow off your in-tank filter screen by reversing the feed and return fuel lines temporarily. The best thing to do, as suggested, would be to pull your tank and clean it out, but thats a commitment in time and grime.

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'85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit)
'82 300D, 'Tex', 228k body / 170k engine ... summer car
'83 300TD Cali Wagon 210k, wife's car

Thanks DD44,

I'll swap the lines around on my lunch break today . . . Do you think I should change my filters now, or wait till I get some more of my current tank burnt off? (I have about 1/3 tank left)

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82 240D Manual 277K and still rolling!
02 Volvo S60 AWD For Sale

I changed the fuel lines around, no difference . . .

On the way home I decided to try a 0-60 time, as I had recorded it when I had first gotten the car last year . . . back then 10k mi ago it did a 0-60 in 11 seconds! Well KMH! took me 26 sec to get to 60 mph! Now today it was 30 seconds! Same stretch of road too . . .

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82 240D Manual 277K and still rolling!
02 Volvo S60 AWD For Sale

OK, so I left the fuel lines switched around, left for Tucson this morning, got most of the way there when it died, like it ran out of fuel. so I shut it down just as I was passing an exit, and coasted over across the entrance ramp, and parked on the shoulder . . . I dumped the 5 gals I had brought with me for such an ocasion, and reversed the fuel lines back the way there were supposed to be, primed it, and drove off another 10 miles to the truck stop, where I put 5 gal back into the can, and the other 11 gals into my tank, it was full, but should have been at least another gal . . .

Anyhow, it still rattles, clatter, clacking at an idle whatever one wants to call it . . . I'm gonna work on getting the injectors happier, and change out the filters tomorrow . . .

We gave it a hard workout on the way home, as I bought a full size bed for my Dad who will be visiting soon, and some 2X10's and a couple sheets of 5/8" plywood on top, and a trunk full of groceries, and water softener salt! Plus ran the AC at MAX! It was a struggle up some of the hills . . . Usually I could keep it at 60-65 up all the hills in fourth gear, today it was 45 mph in third with it to the floor! Temp was running around 100, up one hill it hit about 115c, was 90 -95 f out today!

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82 240D Manual 277K and still rolling!
02 Volvo S60 AWD For Sale

Well, it has been a long six weeks!

I decided to get some used injectors off a guy here on the forum, and he ran into some family problems . . . and by the time he got them shipped to Sean Watts to rebuild them for me, but he had left for Germany, he has just recently gotten back, and I should see my injectors in a week or so!

I ran my tank completely out a total of twice, once with the lines hooked up in reverse, and then I switched them out, and put them back "right"! I have run a total of 44 gallons of fuel through it.

Today I decided to finally change the fuel filters! (kinda wish I had sooner!) I wanted to make sure I had gotten as much of the old fuel out, before putting new filters on!

Here is what I found when I dumped the fuel out of the secondary filter:


I cut open that filter and this is what it looked like!


Here is the primary filter with some fuel in it:


And I cut it open:


Think I should run some "bug juice" in it? Or has every thing come through and just caught in the filters? It has not gotten any worse, but runs slightly better now with the clean filters on, but still clacks!

Here is a recent picture . . .

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82 240D Manual 277K and still rolling!
02 Volvo S60 AWD For Sale