Re: you were right don s
Don:<br /><br />I posted a query re: valve guide seals earlier this evening. As you are an experienced pro, can you direct me to a good source? Motor is a 1992 Mercruiser 3.0L (S/N: 0D805131). I'm pulling the valve cover to replace valve stem seals and check valve action on Cyl. #2 (low compression), and I noticed on p.3A-15 of the Mercruiser manual a reference to the guide seals - do these even need to be replaced? I'm trying to rule out the valve train in my low compression issue, so I'm going to check all possible causes of sticky valves. Thanks for your time - you've previously made valuable contributions to my ongoing efforts to get my engine back into top running condition.