Thread: Smoke at start up

G'day Olmate

One of the reasons for this is that since these engines were designed 1950's the oil qualitly has greatly improved, and the oils are now generally thinner, 20w-40w, so when hot starting (after use) there will be a small amount of oil that has by-passed the valve stem seals, this is and always has been a design problem with this motor,the original "O"ring was not a success and the umbrella was not a lot better, if it only puffs blue smoke for about 1/4-1/2 sec on startup don't worry, my motor has done this for the last 140,000miles I run Penrite 20w-40w everday driving oil, it holds it's viscousity well and gives good oil pressure when hot,and I have had no lube problems, but change it regularly.

Puff of smoke on start up= oil lube to rockers OK

Originally Posted by olmate

Problem fixed....

And I expect to hear the laughter very loud and clear

Simple matter of changing the oil (got rid of the flash synthetic stuff) I put the mineral based oil in her and she is as good as gold

Thanks Ivan - I thought that I was doing the right thing by using a good quality oil. She is a different car now

You will save a fortune So it has cleared the smoke on a warm start up?
If so you have done very well

So you now run a 20/50? I run 20/50 in all my Rangies and Series with no dramas.

Tony