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1978 450SL & 1990 300 E 119000 miles
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15 Posts
Discussion Starter #1 (Edited)
This car is giving me fits. It is getting plenty of air (the breather is off), there is nice fat blue spark at the plugs and the plugs are wet with gas when I pull them. Compression is 140-170. Fuel pressure is running at 75 lbs. Most of all it was running 2 days ago. Can the combined minds out there give me some guidance please?
 

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Registered
1978 450SL & 1990 300 E 119000 miles
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15 Posts
Discussion Starter #3
Im checking the spark at the plug. Pulled out and laying across the valve cover. Have not verified TDC and distributor line up.Will do that now.
 

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Registered
1978 450SL & 1990 300 E 119000 miles
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15 Posts
Discussion Starter #4
Number 1 is fireing in line with the rotor and the dis cap. Still no sign of wanting to start.

David
 

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86 300e Anke
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1,252 Posts
The only other possibilies are:

too much fuel,
too little air.

have you tried the 'flooded' procedure?
(hold pedal all the way down... crank as normal...)

:confused:
 

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Premium Member
'92 300TE 4matic 280,000miles, '92 300TE 4Matic 'Ice Blue Metalic' 101,000miles
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10,394 Posts
Where did you test the fuel pressure? It should be over 70psi at the top port in the FD.....

Test your CPS and the EZL module.....

Kevin
 

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Banned
1993 400E
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7,361 Posts
Where did you test the fuel pressure? It should be over 70psi at the top port in the FD.....

Test your CPS and the EZL module.....

Kevin
Kevin,

If he is getting spark, those "should" be OK.
 

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Banned
1993 400E
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7,361 Posts
This car is giving me fits. It is getting plenty of air (the breather is off), there is nice fat blue spark at the plugs and the plugs are wet with gas when I pull them. Compression is 140-170. Fuel pressure is running at 75 lbs. Most of all it was running 2 days ago. Can the combined minds out there give me some guidance please?


What is the circumstance behind the no start?

Did it stop while driving?, after sitting a while?, Next morning?
 

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Registered
1978 450SL & 1990 300 E 119000 miles
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15 Posts
Discussion Starter #11
Te car sat for a couple of weeks and would not restart. Yes the car s getting consistant spark.

David
 
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