|
|
|
|
|
|
|
#1
03-19-2005, 10:44 PM
|
||||
|
||||
|
’82 240D squallin’ and squealin’,
Thought I had this fixed (twice). When I bought the car from the PO, it had some low RPM squalling that would build until the revs got up, and then it would disappear. My indy replaced all the belts and the crank pulley. We were good to go for about a week, and then it started up again.
My driveway test revealed that I had to put a load on the electrical system to get it to squeal. Headlights and heater fan added at idle, step on the accelerator, and here’s the squall/squeal. My indy, being the guy that he is, decided to give it a new belt and alternator and an alt. bracket he said he had “out in the yard.” $175 for the alt. (Bosch) $12 for the belt (Conti), plus tax, brought it up to $200. He charged me NO LABOR! Said he should have caught it on the first go round. One week later the squall/squeal is back. Noticed it driving home from work last night. I have to turn on at least the lights to get it to yell. Light and heater fan will get it going in the driveway. It gets louder/faster as I accelerate away from a stop, then cuts off once the RPM’s get high enough. It will follow all the way up through the gears and may keep going while cruising, but it’s hard to hear for this old guy in this old car. What’s up with that? I checked the belt, and if anything I think it is loose. Please tell me it’s not the water pump. Operating temp. is normal, at about 85 to 90 C. 20 miles work to home, 50/50 hwy/city. Car is running great otherwise. 25 MPG mixed, good shifting, and powerful 240D acceleration  No issue in the daytime, unless I turn on the lights.I searched and learned some, but I wanted to ask the question specifically. Thanks in advance for your comments and ideas. Clay
__________________
2002 E320 Sedan 93K Designo Mocha Black Metallic! 1995 E320 Wagon 205K Black Wagon 1982 240D 183K SloPoke I believe each of these cars are the final production year for that model. 
|
|
#2
03-19-2005, 11:03 PM
|
|||
|
|||
|
first thing i think is water pump. have you had someone step on the accelerator while you listen at the front with the hood up?
__________________
currently [1981 300 td tdidi 165500 dark brown/palamino-Brownie-mine-3k miles of ownership 1983 240d 162+++ Anthricite grey w/ henna red interior and hella lights-wifes car-Red the above two cars are for sale and can be seen on the cars for sale thread here. pix also available. 240d-144+ Manilla Yellow w/ palmino interior-greasecar kit-Blondie-the college kids car 23" gt 21 speed still on original tires-still got the nubs 21" khs tandem
|
|
#3
03-20-2005, 05:38 AM
|
||||
|
||||
|
No drips at all from the weep holes on the water pump?
Even still, if there are any doubts, it is not a hard job. Got mine for $70 from the dealer, swapped it out in an afternoon. The fan was the toughest-had to grind down o wrench to get in there....
__________________
Think Alternative Energy!  300CD '80 (now gone but not forgotten...) 
|
|
#4
03-20-2005, 09:49 AM
|
||||
|
||||
|
More observations
83-240D: I have only listened from the drivers seat. I can only get it to squeal if I turn on the lights, heater fan, etc. No noise at idle, just when it's reved up. It seems so loud with the hood open, door open, sitting in the driver’s seat, that it would be hard to localize. Good idea, I’m going out to try it today.
JJ: I checked the weep hole at the top and it is dry. The exposed part of the pump, where it bolts up is rusted, but looks like it would be, as it is just bare metal. Car has no rust as a general statement. Other maybe clues are: 1. The radiator is never perfectly full. I do not have a reservoir, just fill to the little line inside the neck. It never stays right up to the line. Gets about 3/8” below the line, but never gets any lower. 2. When I got the car it did not have a fan shroud. It does now. 3. If I grab the big, black cylinder part of the shaft behind the fan, but in front of the pump, it does not seem like it wiggles, but I can see the tension on the belt change. At this point I’m shoving it hard enough to move the whole front end of the car. The belt tension is changing for sure. Thanks, Clay
__________________
2002 E320 Sedan 93K Designo Mocha Black Metallic! 1995 E320 Wagon 205K Black Wagon 1982 240D 183K SloPoke I believe each of these cars are the final production year for that model.
|
|
#5
03-20-2005, 03:09 PM
|
|||
|
|||
|
Squeels primarily with increased electrical loading.
New belts will stretch and need adjustment occasionally. General statement in my experience. If you can turn alternator fan with your finger the belt is too loose. (engine off needless to say) Another contributing factor is to check the pulleys for rust as car may have sat around too long before your purchase. Rust on grooves in pulleys will make the belt wear and loosen fast. Grooves that belt rides in should be almost shiney. If not you have to clean them up. Basically you have been describing a loose belt I believe.
|
|
#6
03-20-2005, 03:24 PM
|
||||
|
||||
|
The latest
Having a look today in the light. Still squealing, but only if I get the lights and fan going. Belt seems loose. Yes, I can turn the alt. fan with my fingers, easily in fact.
Additional comments welcome and thanks for those I have so far. Pulleys seem clean overall. Clay
__________________
2002 E320 Sedan 93K Designo Mocha Black Metallic! 1995 E320 Wagon 205K Black Wagon 1982 240D 183K SloPoke I believe each of these cars are the final production year for that model.
|
 |
| Bookmarks |
|
|
Hybrid Mode
