Ok, before you freak out, and you start pulling the motor, let me offer some advice. If your D has been sitting for a long time and it didn't smoke before you stored it, then your problem most likely would be stuck/sticking piston ring's, allowing oil into one or more of the cylinders, and burning the oil when they are fired . Go to a parts store and get 2 bottle's of Marvel mystery oil. Drain one quart of oil and pour the first bottle into your engine, this should free the ring's. Then pour the other in the gas tank .It makes a very good cleaning agent, with a lubricant for the upper part of the motor, valves, etc, if poured in the fuel tank and burned with the fuel. This stuff has been around alot longer then we have, and earned it's name with top mechanics.Also to mention it has cured this problem for me on 2 of my older, stored, super toy's. You might need to do it twice to free the rings, but a hek of alot cheaper fix than a engine rebuild. Hope this helps and good luck!! -Paul Catignani < Future posterboy for Marvel LOL imagine that.....> #16811 ----- Original Message ----- From: "David Swingle" <dswingle@xxxx> To: <dmcnews@xxxxxxxxxxxxxxx> Sent: Sunday, October 28, 2001 9:45 PM Subject: [DML] Re: Blue exhaust > --- In dmcnews@xxxx, "Paul Salsbury" <paul.salsbury@xxxx> wrote: > > > Now its back together with new muffler, apart from being a lot > quieter, it is blowing a fair amount of blue tinted exhaust. > > > > What is causing this? > > Blue exhaust = you're burning oil. Valve guides or piston rings. Both > are pretty rare failures on a PRV, but Bad Things Happen when an > engine is not run for many years. > > Dave Swingle > > > > To address comments privately to the moderating team, please address: > moderator@xxxx > > To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >