Smoke at start up

[Kanadakid]

My F 90 has been sitting in the garage since end of November. Has pleanty of stabil in it to keep the gas from evaporating and keep it fresh.<br /><br />Throughout the winter I take it out at least once a month to run it and keep from sitting.<br /><br />Upon starting today it initially blew a nice puff of blue smoke. The engine was stored in the fully down poisition. I'm using full synthetic oil M1.<br /><br />Rod /JB should this happen on cold start up after sitting for a month ? Since this doesn't happen with car during cold winter wondering why oil would be slipping past the rings.<br /><br /><br />Thanks,<br /><br />Kid

 

[Silvertip]

Re: Smoke at start up

More than likely oil is getting past the valve stem seals. If it were getting past the rings the engine would use oil and probably smoke a little whether warm or cold. A little puff at start up is not a significant concern. If your auto engine sat on end the lower cylinders would likely puff as well.

 

[Kanadakid]

Re: Smoke at start up

Up,<br /><br />Yes I did a search today and found all the posts and solutions of slightly trimming the engine after shutdown. <br /><br />I tried to serch this on the site before posting but the history only went back 30 days. It seems to be back up and running again.<br /><br />Thanks for taking time to reply.<br /><br />Kid

 

[210reata]

Re: Smoke at start up

Has pleanty of stabil in it to keep the gas from evaporating and keep it fresh.<br />

Stabil is part of the problem in my opinion - I have had carbs gum and fail becuase of that product. Try Sea Foam - never had a lick of problems as a result!<br /><br />Good Luck!

 

[rodbolt]

Re: Smoke at start up

kanadakid.<br /> its most likly due to leaving it trimmed down, I prefer trimmed down for storage but with the cylinders horizontal or the spark plug end lower than the crank end its normal to have some oil seep by.<br /> those engines have no valve seals as they are horizontal and especially if left trimmed down oil runs away from the valve.