[Chevelle-list] 396 boring / oil burn
My 396 was at one time rebuilt. To what extent it's hard to know. I can tell the intake and timing cover was been removed before. I plan on doing a rebuild, keeping it on the stock side. My plan is to take the minimum off as necessary and just wondering if this is a more for giving block it comes to reboring. On a 396 how much can be taken off the bore over the course of time? My rebuild theory stems from the fact that if I get on it I get some blue smoke from the drivers side exhaust. I imagine it is getting sucked past the rings under load. My PCV valve and hose to the carb is new and working. It is a stock open element with the underside of the air cleaner base connected to the valve cover elbow. Could the fact that the oil filler cap is an open breather type effect the oil blow by I have in some way? I am using 10W 30 oil. Any recommendations to a thicker oil to help avoid the oil blow by in the mean time? Thank you for the help, Krister Meister Bloomingdale, IL '66 SS #'s
RE: [Chevelle-list] 396 boring / oil burn
Have you checked the valve guide seals? That could be your smoke from one side problem. Brian From: Krister Meister [EMAIL PROTECTED] Reply-To: The Chevelle Mailing List Chevelle-list@chevelles.net To: The Chevelle Mailing List Chevelle-list@chevelles.net Subject: [Chevelle-list] 396 boring / oil burn Date: Fri, 27 May 2005 15:21:26 -0500 My 396 was at one time rebuilt. To what extent it's hard to know. I can tell the intake and timing cover was been removed before. I plan on doing a rebuild, keeping it on the stock side. My plan is to take the minimum off as necessary and just wondering if this is a more for giving block it comes to reboring. On a 396 how much can be taken off the bore over the course of time? My rebuild theory stems from the fact that if I get on it I get some blue smoke from the drivers side exhaust. I imagine it is getting sucked past the rings under load. My PCV valve and hose to the carb is new and working. It is a stock open element with the underside of the air cleaner base connected to the valve cover elbow. Could the fact that the oil filler cap is an open breather type effect the oil blow by I have in some way? I am using 10W 30 oil. Any recommendations to a thicker oil to help avoid the oil blow by in the mean time? Thank you for the help, Krister Meister Bloomingdale, IL '66 SS #'s _ Dont just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/
RE: [Chevelle-list] 396 boring / oil burn
I had a 69 396 block bored .040 on first rebuild then another .020 (.060 TOTAL) the second rebuild without any problems. If it's coming out the exhaust only on one side when under load, I'd suspect rings. My (limited) experience is guides and/or seals would cause smoke on deceleration. I know that used to be my rule-of-thumb years ago. I'd think the oil breather cap would (1) allow blow-by in the engine compartment if it were bad or (2) excessive fumes/smoke being sucked back into the air cleaner to be reburned but that should cause smoke out both pipes. Dale McIntosh -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Krister Meister Sent: Friday, May 27, 2005 3:21 PM To: The Chevelle Mailing List Subject: [Chevelle-list] 396 boring / oil burn My 396 was at one time rebuilt. To what extent it's hard to know. I can tell the intake and timing cover was been removed before. I plan on doing a rebuild, keeping it on the stock side. My plan is to take the minimum off as necessary and just wondering if this is a more for giving block it comes to reboring. On a 396 how much can be taken off the bore over the course of time? My rebuild theory stems from the fact that if I get on it I get some blue smoke from the drivers side exhaust. I imagine it is getting sucked past the rings under load. My PCV valve and hose to the carb is new and working. It is a stock open element with the underside of the air cleaner base connected to the valve cover elbow. Could the fact that the oil filler cap is an open breather type effect the oil blow by I have in some way? I am using 10W 30 oil. Any recommendations to a thicker oil to help avoid the oil blow by in the mean time? Thank you for the help, Krister Meister Bloomingdale, IL '66 SS #'s
