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#1
10-02-2004, 03:26 PM
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Defective surface on IP timing device
Take a look at this. It came out of an engine I am preparing to install in a 1979 300SD. It is the vacuum pump roller "surface". This is what destroys stuff like the vacuum pump roller and it actually looks like a bearing race failure (which, in a way, it is). It would have eventually made mince meat of the vacuum pump "roller"
 and the more load on it the quicker it would have gone bad. We have a vibration crew at work that can pick up stuff like this all over a papermachine. I've been working on this engine since around 9 am this morning. New bearings, rear main seal, chain, chain guides and tensioner. When I tore it down the chain was showing 11 degrees of stretch . This is the worst thing I have seen in this engine so far. It was time for a new oil pump tensioner slide too.
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Jim Last edited by engatwork; 10-02-2004 at 06:06 PM. 
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#3
10-02-2004, 05:14 PM
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Naaaa
His wife is glad he is not cleaning parts in the dish washer and assembling them on the living room floor!!! LOL
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#4
10-02-2004, 06:04 PM
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Quote:
 .The driveway looks pretty rough and there are two cars parked in it that don't run right now but other than that you would not be able to tell a diy'er lived here  .
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Jim
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#5
10-02-2004, 06:45 PM
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How many miles are on the SD? Mine has 214 or so and I don' really know when to do the chain. I know these aren't prone to failure like the V-8's. Also, when the chain is put in one of these, do you do the tensioner, rails, etc like the V-8's?
Thanks David
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_____________________________________________ 2000 Honda Accord V6 137k miles 1972 300SEL 4.5 98k miles _____________________________________________
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#6
10-02-2004, 09:51 PM
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Chain should be replaced when it has 8 degrees of stretch (or more if you just got the car). Not a milage kinda thing, you have to look.
Jim: Fatigue failure of the surface, probably due to lack of proper lubrication. I see all the time in the peristaltic pumps at work. They have a pair of rails between the pressure rollers and the platen that presses the tygon tubing down, and they start to flake off bits when they get old and/or someone doesn't oil them enough. The metal flakes and rough surface then rapidly eat away at the rollers. Not pretty! Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs!
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#7
10-02-2004, 11:39 PM
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I've got a nice used one, let me know if I can help...
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#9
10-04-2004, 12:42 AM
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Plantman, what kind of plants do you have there in Mi'Jami???
I am referring to a nice used vac pump drive gear head thing. It's from my 1982 617.952 "parts" engine.....
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#10
10-04-2004, 07:20 AM
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W/r Ga
How long have you lived W/R?? I lived there from 1968 - 1978
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1984 300D Turbo Sedan (Hilda) 272,115 miles..... Anthracite Gray/Palamino Leather, I am 3rd owner 2001 Dodge Stratus (Silver) (wifes) 55814 miles... 1982 280TE Wagon Astral Silver Metallic/ Anthracite Velour 260,512 miles (Eva) 1969 230 Sedan Olive Green/Black MBTex 4 Speed Manual 84,213 miles ???? Haus Frau 2004 Boreem Ninja Pocket Bike Highly Modified 49cc (Ling Ling) Einigkeit und Recht und Freiheit
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