|
|
|
|
|
#1
04-19-2007, 03:54 AM
|
||||
|
||||
Two M103 questions, EGR and valve springs
I'm going to be installing new valve seals on my 300SEL, would it make sense (to me it does) to go ahead and replace the springs while I am already in there? Motor has around 254k on the ticker currently.
Also, is there a reason MB installed EGR on the '90+ M103s? I can assume for lower NOx levels due to tighter US emission laws. Thanks 
__________________
I'm not a doctor, but I'll have a look.  '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] 
|
|
#2
04-19-2007, 05:56 AM
|
||||
|
||||
|
You really need to use a calibrated spring compressor to determine if they need to be replaced. Don't replace them unnecessarily, i.e. save some money.
__________________
Regards Warren Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL ENTER > = (HP RPN) Not part of the in-crowd since 1952.
|
|
#3
04-19-2007, 07:17 AM
|
||||
|
||||
|
Quote:
Where do you score one of these? 
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
|
|
#4
04-19-2007, 08:03 AM
|
|||
|
|||
|
Yes valve spring replacement is a very GOOD idea...ONE of the most overlooked components on an engine!
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
|
|
#5
04-19-2007, 09:36 AM
|
||||
|
||||
|
For the $6/ea or whatever they run, I can swing $72 + tax.
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
|
|
#6
04-20-2007, 01:52 PM
|
|||
|
|||
|
I will be doing the valve stem seals on my M103 pretty soon, and when I do I will also replace the springs. For a hundred bucks, it's cheap insurance while you're in there, and besides - you are saving a boatload of cash doing it yourself anyway.
__________________
08 W251 R350 97 W210 E320 91 W124 300E 86 W126 560SEL 85 W126 380SE Silver 85 W126 380SE Cranberry 79 W123 250 78 W123 280E 75 W114 280
|
|
#7
04-20-2007, 01:57 PM
|
|||
|
|||
|
hmmm ....first i have heard of re-doing the springs
i have to do seals on two cars...
__________________
1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k  1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC]
|
|
#8
04-20-2007, 02:16 PM
|
|||
|
|||
|
Believe it or not, the springs actually lose their ability to recover from deflection, and in some cases can even break if they become worn and are not replaced. I have seen it more than once. If you already have a spring compressor around the springs it just makes sense to replace them.
__________________
08 W251 R350 97 W210 E320 91 W124 300E 86 W126 560SEL 85 W126 380SE Silver 85 W126 380SE Cranberry 79 W123 250 78 W123 280E 75 W114 280
|
 |
| Bookmarks |
|
|
Linear Mode
