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Mercedes 300D Suggestions

2231 messages,  Last post on Nov 11, 2009 at 9:21 AM

You are in the Classic Cars Forum. Your Host is mr_shiftright

What is this discussion about? Mercedes-Benz 300-Class, Engine, Fuel System, Diesel, Coupe, Sedan

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#2225 of 2231 Re: Broken bolt on oil filter housing/cover on 85 300TD [reugenio] by Mr_Shiftright HOST Sep 26, 2009 (6:29 am)
Replying to: reugenio (Sep 26, 2009 12:28 am) Oh, are there still some threads left on the broken portion of the bolt. If so, you might be able to "double-nut" it, screwing two nuts on the broken stud, tightening them together, then unscrewing the bottom nut.   If there's no room to screw on two nuts (there should be, as those studs are pretty long aren't they?) then maybe small vice grips.   You'd better be DARN sure that no filings of any kind get into the bottom of the oil filter housing, if you have to do any drilling.   But it looks like from the picture I'm looking at, that no drilling will be required to extract this long stud.
#2226 of 2231 Re: Broken bolt on oil filter housing/cover on 85 300TD [reugenio] by burdawg Sep 26, 2009 (10:58 am)
Replying to: reugenio (Sep 26, 2009 12:28 am) If there's a small portion of the bolt accessible, and enough clearance you may also be able to use a small file, file a groove in it and turn it out with a flat screwdriver.
#2227 of 2231 1979 300D Stalls at idle by dparise Nov 09, 2009 (10:17 am)
Hi I just brought my 1979 300D in for service to an old german mechanic who supposedly knows his stuff. The car was running fine accept once a week maybe you start the car and there would be no power just a crawl. Turn it off sart it right back up full power!!! That's why I brought it in. Just picked it up and he said he changed fuel filter, tightened valves (which he said really needed) and blew out gas tank for dirt or rust(my suggestion). Took car home it seemed fine(smoother) now it runs rough (idling) and stalls at idle all the time. Driving is fine but it soon as I come to a stop it starts clunking and dies!!!! Help!! its there (at mechanic) now. Replies to this message: burdawg (Nov 10, 2009 11:28 am) dparise (Nov 10, 2009 2:22 pm) Mr_Shiftright (Nov 10, 2009 6:11 pm) burdawg (Nov 11, 2009 9:21 am)
#2228 of 2231 Re: 1979 300D Stalls at idle [dparise] by burdawg Nov 10, 2009 (11:28 am)
Replying to: dparise (Nov 09, 2009 10:17 am) That part about the gas tank concerns me. How was that actually done? Replies to this message: dparise (Nov 10, 2009 2:22 pm) Mr_Shiftright (Nov 10, 2009 6:11 pm) burdawg (Nov 11, 2009 9:21 am)
#2229 of 2231 Re: 1979 300D Stalls at idle [burdawg] by dparise Nov 10, 2009 (2:22 pm)
Replying to: burdawg (Nov 10, 2009 11:28 am) That I don't know, but I got it back yesterday and he readjusted valves (i think loosening them up) so now it doesn't stall but it 's awfully noisy! Replies to this message: Mr_Shiftright (Nov 10, 2009 6:11 pm) burdawg (Nov 11, 2009 9:21 am)
#2230 of 2231 Re: 1979 300D Stalls at idle [dparise] by Mr_Shiftright HOST Nov 10, 2009 (6:11 pm)
Replying to: dparise (Nov 10, 2009 2:22 pm) well loose is way better than tight!!
#2231 of 2231 Re: 1979 300D Stalls at idle [dparise] by burdawg Nov 11, 2009 (9:21 am)
Replying to: dparise (Nov 10, 2009 2:22 pm) The valves need to adjusted right. Typically for mercedes engines with solid lifters there's a cold clearance tolerance and a warm tolerance, of course you use the one based on if the engine is cold or warm. It's always better to adjust them slightly looser so they won't be hanging open at higher rpm's, especially on an older engine with weaker valve springs. On a 300D I don't know if the valve noise would be that much more objectionable than the overall diesel noise.

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