Date registered: Dec 2012
Vehicle: 2004 E500 4Matic Wagon, 1980 450SLC, '94 SL500
Location: Litchfield County, Connecticut
Mentioned: 0 Post(s)
Quoted: 14 Post(s)
'67 230S, M180 Compression & Head Work
I've owned our Finnie for over a year now and it is fully sorted and road ready. Just recently, I received all of the service records for the car. In the records it shows multiple valve jobs:
@ 85,000km compression was 155 - 160- 175 - 25-160 - 45
after 1st valve job, The owner checked compression frequently.
@ 92,000kms compression was 150 - 90 - 150 -150 - 150 - 90
another valve job was performed.
@137,000kms compression was 135 - 135 - 145 - 135 - 145 - 135
There are no more compression notes in any of the service records beyond that.
Frankly, I've never checked the compression since I've owned it and we are now at 238,000kms!
With that said, IF I find that I need valve work (it does suffer from modest blow-by) has anyone extracted a little bit more power from their M180 while redoing the head?