Ecessive crank case Blow by?

DiscoKids

Well-known member
Oct 16, 2006
248
0
South Carolina
04 D2
110K or so
valve cover gaskets changed
when they changed the valve cover gaskets they said the lower intake gaset had an oil leak.

We then took it to a different place due to the fact that they said they didn't know how to change that.

My mom got the following done
randr Cylinder head gasket done
oil pan gasket done
timing cover gasket done
front crank seal done

done by http://a-aauto.com. They said it was good to go and she drives it home. The next morning she wakes up and there is a puddle of oil underneath her car. She gets it towed back, and they say that the problem is the excessive crank case blow by. :eek: :banghead:. Any thought on what they are talking about or what could be the problem, would really help.

pressure is blowing out the lower intake gaskets they changed that 4 times they said.

Thanks guys,
any knowledge would help us.
 

jafir

Well-known member
May 4, 2011
1,628
0
Northwest Arkansas
I'm going to call bogus. They probably just don't know how to install them correctly.

Blow-by just means that the rings are so weak that the combustion gasses are getting past them in larger than normal amounts and creating too much pressure. If this were the case, oil would go the other direction too, and you'd have fouled spark plugs too. Normally the PCV system should be able to take care of any pressure in the crankcase. You could pull out the oil separator and breather tube and make sure they aren't plugged.
 

seventyfive

Well-known member
Jan 3, 2010
4,280
100
over there
DiscoKids said:
04 D2
110K or so
valve cover gaskets changed
when they changed the valve cover gaskets they said the lower intake gaset had an oil leak.

We then took it to a different place due to the fact that they said they didn't know how to change that.

My mom got the following done
randr Cylinder head gasket done
oil pan gasket done
timing cover gasket done
front crank seal done

done by http://a-aauto.com. They said it was good to go and she drives it home. The next morning she wakes up and there is a puddle of oil underneath her car. She gets it towed back, and they say that the problem is the excessive crank case blow by. :eek: :banghead:. Any thought on what they are talking about or what could be the problem, would really help.

pressure is blowing out the lower intake gaskets they changed that 4 times they said.

Thanks guys,
any knowledge would help us.

where was the puddle? take a picture where the leak is. if they did the pan and didn't do the crux seals it may be puking where the old crux seals were trimmed, i.e. rear main area. get under the truck and see if there is oil dripping where the oil pan is mated to the bell housing.
 

carlosz

Well-known member
Apr 20, 2004
581
0
Annandale,Va
if it is worse than before the repairs I would say the shop fudged the job, I would reconsider having them look back at their own work.