|
|
|
#1
|
||||
|
||||
Paranoid... Oil Pump Chain
Am I paranoid, or should the oil pump chain be replaced at certain intervals?
I am planning a big day for the MB, new timing chain, adjust valves, replace aux cooling fan, new multi-function switch, power steering filter/fluid change, replace brake fluid, drain and fill differential, and check boost pressure. I know maybe a 2 day event. Any advice would be appreciated.
__________________
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 |
#2
|
|||
|
|||
Now that is a tough question. I replaced the oil pump timing chain and the oil pump when I had the engine out of the car and apart.
It is entirey possible to do the job with it in place, and the oil tiiming chain is not expensive, but what a miserable job to do. I spent some time asking whether this was critical. Was told not, but that with the engine out not a bad job to replace, just the cost of the oil pump set me back. . |
#3
|
||||
|
||||
I have only heard of them failing in the newer 5cy diesels. I don't know the engine number but they were used in the 1990-93 300D's.
You can't worry about everything. If it isn't the oil pump chain it is the vacum pump in my case. Their is always something that can go wrong.
__________________
1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#4
|
||||
|
||||
It's a hobby
That's why I call it my hobby first, and my car second!!!
__________________
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 |
#5
|
|||
|
|||
There is really no need to worry about the oil pump chain. In almost all cases of timing chain failure, the chain does not break on its own. An associated component such as a guide rail breaks, or a tensioner becomes worn causing the timing chain to jam and break.
Since there are no such associated components for the oil pump chain, the odds of it breaking is just almost zero, if not zero. Good luck, |
#6
|
|||
|
|||
No guide rail?
LB,
Doesn't the oil pump chain have a guide rail of some type?
__________________
Rick Avid Benz watcher Previously owned 126's: 2 1981 300SD's, 1987 300SDL, 1991 350SDL, Previously owned 123's: 1978 300D, 1983 240D, 1985 300D Previously owned 124: 1994 320TE Currently: 2004 Toyota Sequoia SR5 206k 2010 Ford Edge 122k Always looking for the next MB diesel! |
#7
|
||||
|
||||
Guide rail
Yes, FastLane list a guide rail for my year anyway....
If I do it, it will be ALL or nothing!!
__________________
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 |
#8
|
||||
|
||||
Make sure you replace the oil pump chain tensioner guide too. On the last three 617 engines I have gone through this is the one that was showing the most wear.
__________________
Jim |
Bookmarks |
|
|