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  #61  
Old 04-30-2011, 01:09 PM
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Ah ,its remedy is close .Drive it like you stole it and hope everything goes well.

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  #62  
Old 04-30-2011, 01:59 PM
JimmyL's Avatar
Rogue T Intolerant!!!
 
Join Date: May 2004
Location: Sunnyvale, Texas (DFW)
Posts: 9,675
Again, either this car pumped fuel into the oil system in a capacity that NONE of us has ever heard of before, or the "SOAKED" rags under the fuel lines gives us the most telling evidence on a pretty open and shut case.
When I had a single fuel line undone on my OM606 for a bit less than a week, the fuel that leaked out of that line was astounding.
Reassemble, plan on a few quick oil changes with some cheaper oil, and odds are life will be back to normal....
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'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John
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  #63  
Old 04-30-2011, 08:09 PM
luke4's Avatar
benz-o-matic '86
 
Join Date: Mar 2011
Location: North San Diego County, CA
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Oddly, the lift pump piston was stuck in place. I speculate that it was not pumping. I took it apart, polished in the inside and got it working well now.

There is zero leakage when pressurizing it with mity vac.

More to point of the mystery - I used lung pressure on the fuel hose that goes from the lift pump outlet side to the spin on filter with the return line to #1 injector removed. Guess what? It was very easy to push air through - probably 0.5 PSI. That easily could have been fuel being push through by a warm/pressurized fuel tank. The fuel does NOT have to go through the IP to reach the return line on #1. That line was over the top of the injector hole for several weeks.

A telling development that I think solves the mystery of the crankcase full of fuel.

Nonetheless, assuming the I did no other damage (TBD), I will check the oil level at every stop just in case.
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1986 300 SDL, gray on black, #14 head, 180K miles
1982 300 CD, silver on palomino, 290K+ miles [sold]
1980 300 SD, white on palomino, 500K+ miles when retired [uncle's car - inspiration for the above]
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  #64  
Old 05-01-2011, 08:10 AM
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1987 w124 300D
 
Join Date: Mar 2008
Location: Edmonton, Canada
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It's not that odd, the returns of the front most injector connect to fuel filter housing, where the returns are normally collected and sent back to tank. In this case, flows reversed under back pressure, fuel was delivered backwards to injector #1 via the return line.

The real lesson here is: ensure tank vent is venting.

The red herring is that you had an open returns line parked over a hole leading into the cylinder.

The message is if you're disconnecting return lines on the injectors (anywhere along the chain), and leaving it like that for a while, then disconnect both fuel lines (supply and return) under the hood, and plug them with something.

If it's not a plugged vent and heat expansion pushing fuel down the lines on a parked car causing the problem, it could be gravity with nose pointing downhill, wicking or capillary action of a rag touching the open fuel or return line, etc.. etc.
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  #65  
Old 05-01-2011, 12:15 PM
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This must qualify as one of the most bizarre things I've ever seen trouble-shot on in an online group, and I have been on automobile lists of one sort or another since 1995. Wow.
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2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

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  #66  
Old 05-01-2011, 04:46 PM
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benz-o-matic '86
 
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I just reinstalled the lift pump, ran a few quarts of oil through the crankcase into a drain pan to try to flush more of the fuel out, push fresh oil in and took it for a spin. Stopped frequently to check the oil level and it stayed put.

However, the car now smokes like a train (it did not before the above incident and installing rebuilt injectors). It smokes at idle some and about the same up to 2300 to 2500 RPM, then a much greater volume of smoke as soon as the turbo kicks in. At WOT above 2500 RPM, it pushes out a very large amount of smoke such that everyone behind me on the freeway gets out of the lane.

It seems to smoke less up to 2000 RPM if the turbo hasn't kicked-in in a while such as when driving through the neighborhood. But use the turbo, and it will smoke much more at the same 2000 rpm for the next 3-5 min. Then smoke less as long as the RPM's are kept low and the turbo doesn't kick in.

So the question is, is this due to overfilling the crankcase with fuel and running it for 3 min? Or could it just be due to the rebuilt injectors (specifically the new nozzles) still breaking it? The former makes more sense to me (by why, not sure?) since it the smoke volume varies with turbo use.

Time for a compression check? Or Italian tune up? Don't want to press my luck . . .
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1986 300 SDL, gray on black, #14 head, 180K miles
1982 300 CD, silver on palomino, 290K+ miles [sold]
1980 300 SD, white on palomino, 500K+ miles when retired [uncle's car - inspiration for the above]
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  #67  
Old 05-01-2011, 04:58 PM
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I would discount the idea of breaking in new injectors. Could be failed turbo bearings allowing oil into the intake. Not a completely impossible scenario since the turbo would have been getting very thinned out oil when the crankcase was overfilled.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
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1993 GMC Sierra 6.5 TD 4x4
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  #68  
Old 05-01-2011, 05:03 PM
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benz-o-matic '86
 
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The doubt its a failed turbo bearing because it ran for only 3 min and never over 2K rpm while the crankcase was full of fuel. So the turbo would never have spun up.

The smoke is black/blue and at idle a little white-ish.
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1986 300 SDL, gray on black, #14 head, 180K miles
1982 300 CD, silver on palomino, 290K+ miles [sold]
1980 300 SD, white on palomino, 500K+ miles when retired [uncle's car - inspiration for the above]
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  #69  
Old 05-01-2011, 05:56 PM
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Still have your boost guage around. I'd check the boost to see if anything has changed.

Also probably time for a compression check...
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  #70  
Old 05-01-2011, 06:41 PM
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FYI

Quote:
Originally Posted by luke4 View Post
The doubt its a failed turbo bearing because it ran for only 3 min and never over 2K rpm while the crankcase was full of fuel. So the turbo would never have spun up.

The smoke is black/blue and at idle a little white-ish.
It will take a week to cook the excess fuel out..

You get to smoke um till then..
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  #71  
Old 05-01-2011, 06:59 PM
compress ignite's Avatar
Drone aspiring to Serfdom
 
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TurboCharger IS ALWAYS Spinning

When,the engine is running.
(At Idle and slow speeds it will not be making turns for 10-20K RPM and not
producing a lot of Boost)

I pray your Turbo's Bushings are O.K.

I believe there's still available a "Cartridge" (Shaft,Bushings and "Fans") for
that model Turbo.
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  #72  
Old 05-01-2011, 08:16 PM
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Quote:
Originally Posted by luke4 View Post
The doubt its a failed turbo bearing because it ran for only 3 min and never over 2K rpm while the crankcase was full of fuel. So the turbo would never have spun up.

The smoke is black/blue and at idle a little white-ish.
You are really lucky the engine didn't run away on you! I had it happen on a car where the IP (VE pump) leaked diesel into the crankcase due to a leaky IP drive shaft seal and it ran away as I was driving. Scared the chitt out of me! Luckily it was a manual and I was able to stall the engine before crashing.
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  #73  
Old 05-03-2011, 12:00 AM
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Done that with a Caterpillar and a 32,000lb BlueBird motorhome, a runaway on the freeway will wake you up.

Based on your scenario, I wouldn't expect the turbo bearings to be damaged. The seals unlikely also, but moreso than the bearings.

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