|
|
|
|
|
#1
06-09-2002, 08:11 AM
|
||||
|
||||
|
vacuum pump damage
I have read many posts about internal engine damage if/when a vacuum pump breaks.
Are there any warning signs of a pump ready to puke? What exactly happens? Is the repair extensive? How much to repair the damage? Just curious and asking. Thanks
__________________
1982 240D 313,000 (4 speed) 1984 300CD 172,483 1985 German Shepherd Dog -Lacey- R.I.P.11/04/05 Hood Stars, Wrist Crowns and Obsession Dobs 
|
|
#2
06-09-2002, 08:20 AM
|
||||
|
||||
|
Based on what I can tell the problem arises when the VP internal mechanical mechanism breaks and metal parts get into the timing chain cavity. Could possibly cause damage to the timing chain and sprockets which in turn could cause damage to the valve train and/or the top of the pistons. I can't tell you the warning symptoms but would imagine that replacement of the vacuum pump would be on the "to do" list by 250,xxx miles just as a routine replacement item. In addition, I suspect that the life of the VP is based on how frequently the engine oil gets changed. The moving parts of the vacuum pump are lubed by the engine oil.
__________________
Jim
|
|
#3
06-09-2002, 01:06 PM
|
|||
|
|||
|
If you listen to your engine idle you will hear the warning sign. A loud tapping at the area of the VP, you can't miss it. Been there, done that.
The noise was very distinctly from the VP area. When I heard it a few years ago, I posted a question here and Donnie notified me immediately that I should pull the pump and look. Sure enough it was the roller shaft loose. I replaced the entire pump. BTW, the car had over 500,000 miles at that point. The VP was original. Have a great day,
|
|
#4
06-09-2002, 02:29 PM
|
||||
|
||||
|
I just recently changed my vp at 175K. I noticed a knock like injector nailling. After reading several post I pulled the vp all the balls in the roller on the swing arm were gone and there was significant wear on the arm itself. So my philisophy would be any new noise in that area, check the vp.
__________________
87 300SDL 220K 85 300SD 218K 82 diesel Chevette 440K 85 subaru 4WD turbo 83 4.1L buick powered cutlass THE TOY
|
|
#5
06-10-2002, 12:15 AM
|
|||
|
|||
|
Having just replaced the VP on my 603 motor I can tell you to be especially careful with those. The design on the 603 puts most of the working parts actually inside the block and right next to the timing chain, virtually guaranteeing a big problem if the pump blows itself up. The earlier cars are slightly less susceptible to terminal engine damage since the bulk of the VP works are in a housing that attaches to the block.
__________________
LRG 1987 300D Turbo 175K 2006 Toyota Prius, efficent but no soul 1985 300 TDT(130K miles of trouble free motoring)now sold
|
 |
| Bookmarks |
|
|
Linear Mode
