help please with loose part on front of my 300SD's engine - Page 5 - PeachParts Mercedes-Benz Forum

#61 03-12-2003, 11:19 AM

To remove the radiator you will have to take off the transmission cooler lines. Be carefull not to round off the heads there. They can be tight on occasion.

rivermasternc · #62 03-12-2003, 11:34 AM

Also, be really careful about the main water hose clamps when handling and re-installing the radiator. The Behr radiators have a bad habit of breaking at the hose neck. If radiator has already had the ends replaced, it may be in good shape. If not, ... only remove if necessary.

RG5384 · #63 03-15-2003, 05:40 PM

Well with a few problems i finally got the old assembly off, but as it turns out my part still has not been delivered. Originally the guy forgot to put in the order, and i called on friday, he said he was going to "red flag" it to me and i'd have it this morning. Unfortunately it is not here. So i guess i'm looking at monday putting this whole thing back together. I could not loosen up the a/c compressor, so for now i'm planning on just leaving that belt off and having it put on at a mechanic once i get home. The bolts are tightened down way too tight, and even me using my foot isn't enough to break it free.(torqued tighter than my body weight). I was really lucky and found the exact bolts i needed at ace hardware. One of them was pretty rounded out, and i had to pay a guy 40 bucks to remove it(better than drilling it out and taking off the balancer). I'll let you guys know when it's all put back together.
Ryan

kerry · #64 03-17-2003, 06:34 PM

Ryan:
Sounds like you have it all under control. Hope the part arrived today.
Once you got it apart, do you have any hypotheses about what caused it to fail? Any evidence of it being struck by the driveshaft you ran over?
How did the person remove the rounded out bolt?

Kerry

RG5384 · #65 03-17-2003, 07:23 PM

Well the car and I made it back home. Non-eventfull trip home. The part did come today and i put it on without any trouble. No clue was to why the old part failed, once i find a digital camera i'll take some picutres for you guys. Once again no clue how the guy got the stripped bolt out either, he hammered something in and took a ratchet to it. I really didn't care how he got it out at that point just as long as he did get it out. A big thanks to everyone for all your help, i can't say it enough. THANKS!!!! now to figure out how to get my a/c belt back on(or pay someone else to do it lol)
thanks again,
Ryan

rivermasternc · #66 03-17-2003, 09:29 PM

Great news Ryan! Have a good Spring Break!

-Scott

rivermasternc · #67 03-19-2003, 09:58 AM

Ryan:

Thanks for the pictures! Seeing all that rust and apparent areas where the rubber compound is missing, I'm guessing that has been failing for some time. It looks as if the rubber has been attacked by something causing it to fail.

It used to be common practice for engines to be cleaned with methylene chloride (gunk, etc.). This type solvent will attack most types of rubber compounds and adhesives.

Enjoy the rest of your spring break!

Sincerely,
Scott

Beastie · #68 04-03-2011, 11:49 AM

I know this is thread ha a happy ending but just wanted to toss this out there.
I was surprised at reaction to the failure of the rubber portion. I had to change this on my Range Rover as well as a couple of Pontiacs I have owned.
As someone else stated it was probably due to an incompatible cleaner eating away the rubber or the adhesive.
Alan

whunter · #69 07-20-2011, 11:48 AM

Mount the three cup springs (washers) with the crown (raised dome) toward bolt head.

The harmonic balancer is secured to the crankshaft by a single 18mm X 45 mm bolt torqued to 270 - 330 Nm = 200-244 ft. lbs.