1- My 84 300D has started (intermittently) whistling at higher speeds (40+ mph), with the whistling growing progressively louder with speed. This started a few weeks ago with a faint noise, and has been getting worse over time. At this point, it sounds like there's a boiling kettle somewhere in the engine compartment.

It has no noticeable impact on drivability, and the car isn't displaying any other symptoms of bad behavior. Annoyance aside, I'm wondering if something could be going very wrong. For example, is my turbo is about to take a crap?

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2- The car's steering has started to act up with cold temperatures. The power steering pump has begun to squeal loudly at full lock, and occasionally "jamming" before reaching full lock during stationary maneuvering (i.e. during parallel parking). Once the car's been running for more than a minute or two, everything seems fine. Are these symptoms of a failing PS pump? I fully admit that driving to Boston and back without a power steering belt may have contributed to this issue. Fluid and filter were recently changed.

As always, any advice & assistance is appreciated.

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Are your belts adjusted properly?

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Current Stable

• 380SL (diesel)
• Corvette C5
• Manx
• Baja Bug
• F350 Powerstroke
• Auburn Boattail Speedster replica

The PS belt currently has 1/2-1" of play between the pulleys.

The issue is, it doesn't seem to want to get any tighter. Either the shop put on the wrong belt size, or my adjustment mechanism is broken.

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The whistle could be a boost or vacuum leak. What if you put the engine at full load in 2nd gear? Going slow (relatively) but if it's a boost leak should be loud.

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'84 190D 2.2 5MT (Red/Palomino) Current car. Love it!
'85 190D 2.2 Auto *Cali* (Blue/Blue) *sold*
http://badges.fuelly.com/images/sig-us/302601.png
http://i959.photobucket.com/albums/a...0/sideview.png

Some people describe a "whistling" sound for the whine sound of a power steering pump when the fluid and filter needs to be changed.

For the belt: See if you can find some identifying marks and bang that number into FindPart.org: Catalogue of Auto Parts

You might get lucky and see that it is indeed meant to be fitted to your car!

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

The culprit for the power steering squeal was, in fact, this Gates V belt. Though it's supposedly the right size, and the manufacturer claims it fits the car, it wasn't able to get tight enough to function without squealing. The replacement (Duralast) works perfectly.

Morale: avoid Gates belts?

Attached Thumbnails

 

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Interesting.... how does it compare in terms of top width , angle of working surface, etc ?

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Tried this out earlier today. The whistle seems to be most prominent around 2-3k rpm, after which it fades away. Below 2k, everything sounds normal.

Poking around the engine bay earlier, I noticed that my air filter housing bracket has cracked. I'm not sure there's a direct correlation between the two, but it seems like an obvious variable to eliminate.

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I'll take a closer look and get back to you.

The only immediate difference I noticed was that the Duralast has a similar synthetic fabric outer layer to that found on the OE Contitech belts, whereas the Gates has a simple rubberized finish.

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I wouldn't condemn gates belts, it may just be that the belt was past its prime....Sad I know, but belt and hoses don't last for life....

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Do you mean ' condemn ' ?

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Yes, my brain was stuck on "powerful" words...Condone...oh so deep and powerful

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I suppose that it could have been new old stock, but the Gates was installed barely over a month ago.

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Did not get acceptable service time from a Gates serpentine belt on my E300.

Quote:

Originally Posted by Strand I suppose that it could have been new old stock, but the Gates was installed barely over a month ago.

Did you clean the pulleys before install?

Quote:

Pulleys Just like V-belt pulleys, V-ribbed pulleys should be inspected and cleaned before a new belt is installed. Any buildup of contaminants in the pulley grooves must first be removed with an alcohol-based brake cleaner and a soft bristled brush. If these contaminants are not removed prior to new belt installation, the new belt will instantly become contaminated upon installation, and the failure will repeat itself

Something people forget that needs doing, may even need to use a screw driver with fine grit sand paper to remove the build up...

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