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 :D

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Originally Posted by olmate

Tony,

She is fine; not cranky at all - starts and runs well (less the puff of smoke of course).
I do have a holden carby on it tho, using a paper filter. Running nice and lean without a hitch.

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What do you have in the way of a crankcase ventilation system? Is it possible you are getting a drop of oil from the crankcase into the inlet manifold on startup that way?

John

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 :D:D:D:D

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

Quote:

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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 :D:D:D:D

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

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

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

Tony