Hello,
first off we are in the process of having the tinkering done so you would notice that most of the undercoat is visible and and the door panels ect have been removed for the job we are also having the seats done up because my dog ate them, and the upholstery ect..
this is not just some car that was in a barn lying for years we use this car dally ( I mean no offence to anyone who has a car sitting in a barn ) LOL
we love this car and have had it 20 years before I was alive and will continue to keep it up, we use the car for our day to day stuff , I do not own the car its not mine its my dads he bought the car from Australia its an Australian car, parts and all are hard to come by here now so its kinda tough so the breedings ect is kinda put on hold until we get back, also you would notice the back lights are from probably from a 450sel, but now we will be changing them out and have the original ones installed when the guys in colombo contact us with a pair of lights.

Getting on to the blow by issue from what I think this is caused by bad compression obviously compression might be compromised because pressure is leaking from the piston rings up to the crank case area, or worn out valve seats ect... I'm no expert how hard is it to fix this does the engine have to be removed from the car to do anything ?
the car smokes pretty bad at the exhaust IP timing is all set to specs 24 BTDC and valve timing is set to specs with feeler gauge there is some chain stretch on the timing chain cause the timing to be off a little, wood rough keys are not available.

You probably cant see smoke that well on camera and from what I've seen I think our car looks pretty bad from all the videos I've seen on youtube, I was scared at first but when I opened it up it started puffing out grayish white smoke there's definitely a lot of air coming from there you cant see the smoke well so I put the cover on top so you can see it dancing around, I dont know if the car is slack for a 240D because I've never driven any other diesel or car for that matter
oh and injectors have been pop pressure tested and have new nozzles in them, are the bosch ones crap?, if it gets bad could the engine run away, what should be done in case of a run away diesel except using a fire extinguisher in the intake?

Car is :1975 240D W115
Link : http://www.youtube.com/watch?v=Ox11HmmnohU
Thanks
Jeremy Brett

In my opinion that blowby is not bad. For an objective test and comparison, do the garbage bag fill test as detailed in a thread on here.

__________________
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
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

BenzDiesel

motor sounds fine. That is minimal blow by. I think the motor will outlast the car. Just keep the oil & filter changed regularly as per the service instructions and do the other recommended service work and mechanically the car will be fine for a long time. I think the body needs some serious work, make sure there is no rust in the structural parts of the car. Otherwise drive it and enjoy it !!!!!

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

I agree... I have seen and driven worse and those cars drove very good. As long as it runs good, don't worry about it.

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AJ

1985 300D (SOLD)

thanks,
we sort of need to pass emissions I replaced the diaphragm, also the element in the IP on all four have been replaced but its still smoky, also do you need to remove the engine from the car to replace piston rings?
can someone also suggest any other things I should look at regarding the whole smoke issue ?
thanks again

Replacing the piston rings is not really going to be as easy as you think. The piston rings become "oval" shaped and wear into the cylinder liner over lots of miles/hours. Replacing just the rings could actually make it worse as you would be putting a round ring into an oval hole.

You have to pass emissions on a 35 year old car? WOW! Be sure it has fresh fuel filters and be sure the oil is fresh. If you had an IP and injector problem maybe change the oil. You could have a lot of fuel in the oil from leaky injectors before rebuild, etc... This would contribute to your blow-by and the smoke.

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AJ

1985 300D (SOLD)

thanks,
ok done!! how about worn valve seats or something so the pressure is going through there maybe should I take a look at the cylinder head ?
anything else worth looking at filters are all good and replaced about a month or two ago Air, Fuel, Oil, and we changed out the oil after the job was done
thanks

I hear there's some liquid that you can use and leave it in the engine overnight so that the rings expand a little and give you better compression ?

mechanic in a bottle does not exist.

To stop smoke for emmissions testing,pour 1 quart turpentine to full tank diesel.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

that wont do anything but clean the crud out of your fuel lines.

It stops smoke and raises cetane.Helps the fuel burn 100%.I use it all the time.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

As for the smoking can you describe what exactly was done when you mentioned you changed the elements in the injection pump? Done at a injection repair shop? Or what exactly was done?

With the limited amount of blowby you have there should be little out the exhaust pipe. How many miles per litre of base engine oil per kilometer or miles does this engine consume. If you feel at least say fifteen hundred kilometers per litre engine wear it is not your smoking issue.

I have never witnessed it myself but from what I have heard with cat propelled engines they really take off. The celane rating must be vastly improved.

Actually believe it or not an old fellow asked me if sitting in a pan of turps might help his hemoroids. A guy he met apparently had suggested it. I sugggested he talk to his doctor first. All I could visualise was a launch from the pan simular to a space rocket.

Well you never know it might partially help. The fact you had the hemroids would be a forgottten issue for awhile.

No I am not into cruelity. Lived with an alien being too many years to not know what it feels like to be a victom of it. Like animals as well. Cannot say I am an animal lover as that could be twisted and construed into something else. Although I can think of nobody that would do this.