|
|
|
#1
|
|||
|
|||
w201 wont start after sitting for year and half
My brother and I bought a non running 1992 190e last weekend. I was able to get it to get it to start, but shut it off to fix a loose belt. Well it wont start now. I drained the tank and fuel system and replaced the gas, New cap, rotor, spark plug wires and spark plugs. i have a spark tester and am getting great spark compared to how it was when it first started. I am getting fuel to the mechanical fuel distributor( cracked the lines while my brother by passed the fuel relay). I noticed that only one of the fuel pumps is making any noise and vibrating. Do these cars need both pumps to run? Also, it will back fire through the intake and exhaust after I crank on it for about 15 seconds. It gets super close to starting, but wont quite go all the way.
I'm really good with the old diesel benz's and the JDM motors, but this guy has alot going on under the hood. Any ideas would be a great help. Thank you
__________________
84 300sd 2.47 dif 360k 26 mpg needs lots of love given to me in pitty 89 civic hatchback auto 140k 33mpgs soon to be low to mid 40's been in the family since mile 1 85 300d with unknown knock. driven over 30k with knock and still going. sold for $800 |
#2
|
||||
|
||||
What happens when you do not bypass fuel relay?
Did you replace fuel filter? Vacuum leaks and lean fuel condition can also cause backfire.
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein" Last edited by Mike Murrell; 04-28-2017 at 11:50 AM. |
#3
|
||||
|
||||
Check ignition timing.
|
#4
|
|||
|
|||
Quote:
|
#5
|
||||
|
||||
I didn't know the W201 had points & condensor
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein" |
#6
|
|||
|
|||
And that condition has not been rectified.
|
#7
|
||||
|
||||
No points and condenser, but they do have cap and rotor. With new wires, it's possible that the firing order got mixed up, hence the calls to check timing and firing order.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#8
|
||||
|
||||
Firing order possible
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein" |
#9
|
|||
|
|||
benzdude42, I am sure you realize that a Bosch distributor cap has the corresponding cylinder number on each terminal, so it shows the firing order. Cylinder No. 1 is in the front.
__________________
Fred Hoelzle |
#10
|
||||
|
||||
Does it start off of starting fluid. That narrows it down real easy. Yes, you do need both fuel pumps to run!
__________________
Only diesels in this driveway. 2005 E320 CDI 243k Black/Black 2008 Chevy 3500HD Duramax 340k 2004 Chevy 2500HD Duramax 220k |
#11
|
|||
|
|||
I don't believen you adjust the ignition timing on these motors after a quick Google search. I've checked the firing order a few times (1342) with no luck. I'll have to check it out for vacuume leaks next.
__________________
84 300sd 2.47 dif 360k 26 mpg needs lots of love given to me in pitty 89 civic hatchback auto 140k 33mpgs soon to be low to mid 40's been in the family since mile 1 85 300d with unknown knock. driven over 30k with knock and still going. sold for $800 |
#12
|
||||
|
||||
Quote:
I've owned my '93 since new, and the only time it failed to start was when the bottom ICV vacuum hose split at the connector. Replacing these hoses are routine maintenance.
__________________
1993 190E 2.3 2001 SLK230 1971 LS5 (454) Corvette Convertible |
#13
|
|||
|
|||
Quote:
Congrats on the new purchase! In case there are other systems that you're going to be restoring, take a look at the link below to our DIY articles. They should help you with maintenance and any other issues you may run into! Post a photo of the new ride man. Mercedes-Benz 190 W201 (1984-1993) Technical Articles - Pelican Parts |
#14
|
||||
|
||||
Quote:
Modern fuel (over here anyway) has a fair amount of bio content in it these days which means the fuel separates after a while - the water content causes havoc with fuel components. I wouldn't be surprised if you find you need to replace the injectors and all of the rubber parts. Make sure that the start valve operates. ####### Whilst you are fiddling with these KE II CIS systems make absolutely sure that the rubber hoses running from the underside of the mixture unit and the air idle control valve and the breathing parts from the crankcase are well seated and leak free. It is quite easy to know something loose and then spend the rest of your life wondering why it seemed like it was going to start and now won't... ...keep your battery well charged.
__________________
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! |
#15
|
|||
|
|||
Sorry about the late reply. I've also decided it was fuel related, I am getting 90 psi at the fuel regulator, but no fuel coming from the fuel distributor. I took it apart to clean it and broke the diaphragm. Had the rebuild kit over nighted, Should be here tonight. Can the idle control valve control fuel flow to the injectors? I know the top hose I broken right now.
__________________
84 300sd 2.47 dif 360k 26 mpg needs lots of love given to me in pitty 89 civic hatchback auto 140k 33mpgs soon to be low to mid 40's been in the family since mile 1 85 300d with unknown knock. driven over 30k with knock and still going. sold for $800 |
Bookmarks |
|
|