Author Topic: Valve cover, Air pressure. Blue smoke (Read 2561 times)

Jet A · « **on:** October 05, 2008, 09:49:15 pm »

How much air coming out of the tube nubbin in the top of the valve cover? IM getting a fair amount of air and some slightly tinted blue air, maybe whitish. Anyway, tracking down another in my escapade. Seems like the number 3 cylinder is burning oil. has new rings, and new valve seals. but there was a little bit of oil in the injector hole after 10 min of running. and i can see a bit of blue haze coming out the tail pipe. Obviously the rings are not 100% seated. could i be getting some oil past the rings?

Got the pump timed though....

burn_your_money · « **Reply #1 on:** October 06, 2008, 07:31:46 am »

Are you sure you have the timing 100% correct? I thought my motor was kaput but I just had it timed way out. I was lazy and did the mark and pray method. Didn't work. Piles and piles of white/blue smoke.

Air coming out of the valve cover is normal, smoke is not. Since it's a fresh rebuild it may just be because the rings aren't seated

zukgod1 · « **Reply #2 on:** October 06, 2008, 10:00:36 am »

It takes a good 5k for the rings to get fully seated.
Usually good to go as far as oil consumption goes after the first 1500 miles.

Jet A · « **Reply #3 on:** October 07, 2008, 03:41:33 pm »

Pump is set at .0394"

So by the bently thats spot on for a td. granted while testing i am NA but i doubt that matters.

I am hoping its just the rings. I just didnt know how much air and slightly blue (more like a haze) smoke. I will give the rings a chance to seat and see how thing are going

Vincent Waldon · « **Reply #4 on:** October 07, 2008, 08:50:17 pm »

Remind me again how many miles you have on this engine ??

Couple of suggestions:

- Did you try to seat the rings... lots of short but hard pulls with time in between each one for the engine to cool ?

- using a dino oil or synthetic ?

Jet A · « **Reply #5 on:** October 09, 2008, 04:02:46 pm »

Unknown on the engine.

but the rebuild has 0 miles on it. just a start up and a couple of revs to check for correct pump timing and such.

Using dino for the first 10,000. delo 400, then going to synthetic. that way i can go 40,000 miles between oil changes.....YES I CAN!!!

Got a few morethings to take care of before i do hard pulls.

autoholic · « **Reply #6 on:** October 10, 2008, 02:19:58 pm »

Did you measure the cyls for roundness before installing new rings? It may take a while if your out of round to seat those rings.

Author Topic: Valve cover, Air pressure. Blue smoke (Read 2561 times)

autoholic