CDR question need quick response
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CDR question need quick response
ok im working on an 93 7.3 idi E350 been having high oil consumption problems. i removed the cdr valve soaked in gas and cleaned it up. i have a good idea this is where the problem is comming from the inside of the intake manifold is just dripping with oil. now one thing that dosent seem to make sense. is there is a spring but i pull the spring eather way it dosent seem like there is anything on eather side of the spring. i dont immagin there would be a spring there for no reason. maby whatever is supose to be there is missing? or stuck? what am i supose to be looking at.
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did mine yesterday. think were talking bout the same thing (looks like a tuna can or wwll gas mask can) if you got it cleaned up good enough you have the two larger diameter holes bout 1 1/4 id one in the center for the hose and one in the side for the valve cover. if you plug the side one and suck or blow (not compressed air) by mouth you should be able to feal/hear the valve actuating.or if yours is like mine and you got it really clean you should be able to see a tiny hole on the back side.plug the big ones and blow in that one same feal/hear. if you dont hear/feal sumptins wrong.
Post Fiend
Joined: Nov 2004
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From: Manitoba
Were there acumulations of little black pieces in the intake area.... if so replace the CDR valve.
There is nothing to adjust........ when engine intake vacuum gets high the CDR will close partially and slow down any air/oil mixture from being ingested. Of you have massive Blow Bye nothing can stop it. Cleaning regularly or replacing is best for good results. I will PM you some info.
There is nothing to adjust........ when engine intake vacuum gets high the CDR will close partially and slow down any air/oil mixture from being ingested. Of you have massive Blow Bye nothing can stop it. Cleaning regularly or replacing is best for good results. I will PM you some info.
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ok well at first it was almost imposible to get the diafram to move even after soaking for over an hour. but now closes without much effort you can hear it click when it closes. re installed, we will see if it fixes the oil consumpton problems
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From: Kent WA
Originally Posted by 884x4broncoII
ok well at first it was almost imposible to get the diafram to move even after soaking for over an hour. but now closes without much effort you can hear it click when it closes. re installed, we will see if it fixes the oil consumpton problems
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Cargo Master
Joined: Nov 2003
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From: Duluth, Mn.
I hate to say this, but it's not going to solve the problem.
To many peeps think that the CDR is a magical device. It's not. It's just a crankcase vent. There's not really anything that can go wrong with it. In 6 years of reading these forums, I've only read of one diaphram failing.
The problem is you have a high milage engine with worn rings,valves,seals. You have compression leaking into the crankcase. Pressurizing it. Then the oil vapors are sucked into the CDR/intake.
The only real fix is rebuilding the motor, to solve the comprssion loss.
Your other option is a Road Draft Tube.
To many peeps think that the CDR is a magical device. It's not. It's just a crankcase vent. There's not really anything that can go wrong with it. In 6 years of reading these forums, I've only read of one diaphram failing.
The problem is you have a high milage engine with worn rings,valves,seals. You have compression leaking into the crankcase. Pressurizing it. Then the oil vapors are sucked into the CDR/intake.
The only real fix is rebuilding the motor, to solve the comprssion loss.
Your other option is a Road Draft Tube.
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