Mechanics

WHAT WOULD CAUSE WHITE SMOKE TO COME OUT OF MY EXHAUST

1995 Honda Civic • 4 cylinder FWD Manual • 220,000 miles

I recently had to replace my engine when I replaced it I changed all belts, hoses, cleaned the surface of the head and the block, and put all news gaskets in. When I went to go start it up is was running fine and than a couple of minutes later it starting blowing white smoke out from the exhaust in thick clouds.
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Apac408
August 18, 2012.



Ok I replaced the valve seals, valve cover gasket, but I need to replace the o rings that go underneath the cam carriers but cant seem to find them at any auto store. Would anyone happen to know what size they are so I can just buy some universal ones?


Tiny
Apac408
Aug 21, 2012.
You can get 3 out of the 4 but the 3rd cylinder is a special one with an additional loop for the oil pressure hole. Remove the O-ring and got to the seal shop. They can measure the size for you.

Did you try the dealer?


KHLow2008
Aug 21, 2012.
Okay so I got the o rings installed now new problem I cracked the camshaft carrier and in doing so found that one of the rods in the rocker arm assembly is bent. I am replacing the whole assembly but one question I do have is what sequence do I tighten the bolts in since when I did it the first time it cracked my camshaft carrier.


Tiny
Apac408
Aug 21, 2012.
If a camshaft carrier is bad, you would need to replace the cylinder head assy as cam carriers are cylinder head specific.

If you do not replace the cylinder head, you would have to test the bearing clearance for the camshaft journals. Install the camshaft carrier without the rocker arms first and tighten to specification. Manually turn the camshaft to test if it turns easily. It MUST.

Tightening sequence is not the main cause of you breaking the cam carrier. You did not tighten them evenly. You should be tightening them a few turns for each screw and ensure the carriers are seated correctly.


KHLow2008
Aug 21, 2012.
I cant just get a whole new rocker arm assembly and put it on


Tiny
Apac408
Aug 21, 2012.
The cam carrier bearing caps might not match and this would result in the camshaft seing up sooner or later.

If you must, reuse whatever camcarrier bearings caps possible and for the new ones you are putting in, perform the test as I outlined. If it is tight, remove the locking guide for the cap and after holding all other carriers, tighten this one last and see if it improves.


KHLow2008
Aug 21, 2012.
Okay I replaced the whole entire rocker arm assembly and it fit perfect and I also replaced the valve seals, but when I go to start it it will start when I give it gas but once I let off it dies is this a problem with timing and also too I am still getting blue smoke coming out from my exhaust how long should I let it run for to see if it gets any better


Tiny
Apac408
Aug 25, 2012.
The blue smoke might be there for a few days depending on the running time. At least 1/2 and hour to see any difference.

Not the timing. Maybe the idling speed is too low. Did you adjust the valve clearances according to specs?


KHLow2008
Aug 25, 2012.
Dam I knew I forgot something all adjust the valves and post any differences


Tiny
Apac408
Aug 25, 2012.
Ok I adjusted the valve clearances and the car started nice and fine still smoking but I did notice that oil is leaking around the cylinder head I'm thinking the gasket I got isn't doing its job which is probably causing oil to go into the cylinders what do you guys think


Tiny
Apac408
Aug 26, 2012.
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