I have a mid 80s 6.2l diesel engine and i think i have some sort of problem. At high rpm it seems that there is oil misting out of the cdr. What causes this problem and how do i fix it. Also the little f hose on the bottom of the cdr is gone and dont know where to get one ,so it isnt hooked to the intake. It just dumps on the mainfold, but the mainfold isnt wet. it is wet all over fuel pump and fender well. I put a new front and rear main seal in.

The CDR regulates the crankcase pressure. The mist you see is the blowby gasses coming from the crankcase. Vacuum from the manifold operates the CDR, which creates a controlled vacuum in the case. Without the CDR, blow by gasses create a positive pressure in the case and can blow oil out of the seals. If you cant find the right part, go to the auto parts and show them what you need. Sometimes you can find a hose with a 90* bend. You may have to cut it.
If the CDR was working you probably wouldn't have had to change the seals.

Oh yea,:welcome2:!

i looked around for that rubber y but couldn't find it on any sites. sls is bang on with the cdr description. you may need to locate a used one. you'd think something like that wouldn't be so difficult to find

I'm sure he'll show up soon but until he does. Iamdave has a a pile of used CDR stuff, at least he did. If you give him a PM he's probably help you out.

i should too, but i haven't seen anything when i was going through my shed to find parts for dave

I found one at the junk yard.

i know 2 engines, that rubber piece was toast. but the third i think was ok. they don't last, they should be available lol

my damn dad burned mine after i put the turbo on. another remedy is a late model intake manifold with only 1 CDR hookup. then you dont need the F piece but the manifold would be harder to track down im sure.

The manifold with one CDR port simply has the port on one side. Not sure of any other difference though. I wonder if one could block the drivers side and run one tube?
Definitely better than no CDR.

nope you cant block one side or else only 4 cylinders are going to get the fumes. since the manifold is split(each side feeds 4 cylinders) and on the later models with the valve cover CDR they have an open plenum so the fumes go to all 8 cylinders.

you could get a plastic pcv tee and rupper hose it too each side

I cleaned the cdr with a solvent, I can blow air freely (from my lungs not compressed) from both ends of the ports of the cdr, is that suppost to happen? I am going to a local salvage place and see what i can find. If i can make or find and f hose i am getting the cdr and vlave cover off a turbo one, because i already have a turbo and everything to do it just need some motivation LOL.

yes thats how it works. it functions on a slight vacuum pressure. what turbo you putting in?, that changes how you want to route things

I am doing the 6.5l turbo setup. This engine is in a 1996 chevy 2500. I have all functioning gagues and shift fines.

don't get to elaborate then if you plan on swapping the turbo in soon. the 6.5 just feeds from the cdr( where ever you position it) and feeds between the air cleaner and turbo. it can't feed into the manifold anymore due to it being pressurized instead of a vacuum condition of air feeding through

Wow I can't believe 4320 didn't suggest making one out of paper mache and duct tape.

:hehe:

don't laugh, he's probably in the shop now trying to make it work out of paper towel rolls and jb weld

i dont like duct tape. crap isnt strong enough. JB weld, meh it works kinda, wont hold up either. i was wondering if you could just take a piece of heater hose, run it to the CDR, then put a T on the other end, then hook the 2 manifold bungs together.

i think thats what i said a few posts ago brent

you said PCV piping

a tee designed for the pcv system was what i meant, just need the right size. 3/4" i believe

be more specific. lol

hey we got a 6.2 diesel here at work hasnt been ran in two years ill steal that hose with the two prongs whatrs it to you hmmm? lol i put a 6.5 cdr on my truck today will that matter or what? if it does ill take the cdr off the work tug toooooo it looks newest!