If thats the 300 SL I'm thinking about its 10.5:1 
 
Harry
69 280 SEL 135,000 Miles
72 350SL   118,000 Miles
2004 VW Passat 4 Motion
1999 Mazda Miata   
 
 
-----Original Message-----
From: [EMAIL PROTECTED]
To: mercedes@okiebenz.com
Sent: Thu, 4 Jan 2007 2:19 PM
Subject: [MBZ] compression ratio 300SL


Mike

As long as the compression amongst all the cylinders is within a couple of
percent you should be fine. If you see one cylinder that is significantly
different redo the test and proceed with furthur diagnosis. Also you may
want to do a wet and dry test.

Also consider doing a leak down test instead of a compression test, it will
tell you more about the condition of the engine and what is wrong.

Jim

----- Original Message ----- 
From: "Mike Canfield" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Thursday, January 04, 2007 2:46 PM
Subject: Re: [MBZ] Gas vs. diesel prices?


> What is the compression ratio on the engine in a 300SL?  I know NOTHING
> about MBZ gassers.
>
> Mike


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