Supplemental PCV system?

[jblackburn]

Mmm tasty. I'm still smelling burning oil from mine but I can't figure out where it's coming from, so I'm considering rigging something like this up this weekend.

[mindshadow]

This, sir, is redneckery at its finest. As an Alabama citizen I salute you (and may try this on my own car until it warms up enough for me to do the PCV job).

[t5rrr]

This, sir, is redneckery at its finest. As an Alabama citizen I salute you (and may try this on my own car until it warms up enough for me to do the PCV job).

[VolvoViking]

This is great! I was just thinking along the same lines today.

Just one question: What did you do with the hose that used to go to your flame trap? Does that run in to your peanut jar as well, or are you bypassing the original oil separator?

[t5rrr]

This is great! I was just thinking along the same lines today.

Just one question: What did you do with the hose that used to go to your flame trap? Does that run in to your peanut jar as well, or are you bypassing the original oil separator?

My earlier post showing the hose routing has the exit hose coming out of the peanut butter jar going back to the flame trap housing. I rotated the housing's hose elbow to point towards the front of the car for this purpose.

[rcannon]

My 97T smokes too but doesn't seem to build up pressure. I get the condensation on the dipstick. When under load, you can put your finger over the dipstick tube hole and stop the smoke and there seems to be very little force behind it, which tells me it is getting sucked into the engine.

I also tried to see how plugged it was by putting compressed air in the dipstick pipe without the engine running. Running the engine could damage the seal lip because it would be gripping the shaft if there was air pressure on the lip. But lip seals can take a lot of pressure if static. When I put some air pressure in the crankase I could hear the air flowing into the inlet. When I released the pressure (about 40psi with some leaking - I used a rag to seal along with the compressed air blow tube ) the decay rate was about 2s to bleed off. I'm curious what the decay rate for a new one is like. Maybe this could be an objective test to see how plugged the system is.

[rcannon]

I have since found a way to measure the pressure- using a manometer or tube with water in it. Just get a 1/2" clear tube and put some water in it in a U shape, and measure the difference in water height. (Attach to dipstick tube) Mine was very low, less than 1", even under load. That's fine I would think.

[1997volvo850]

t5rrr:

I've been working on a similar auxiliary PCV system for my 1997 Volvo 850 GLT Turbo, Just found this
thread via Justin.

I don't have the flame trap but the PTC valve.

Do you modify the flame trap or are you plugging into the flame trap as is?

As others have mentioned I also have smoke out my dipstick but no pressure buildup. I believe this is
due to my PCT valve being clear and any slight increase in pressure pushes the additional blow by into
the air intake hose.

Your setup looks similar in that excess gas from your dipstick gets pushed through the flame trap.

I'm working on a design for an auxiliary or supplemental system too. The only difference is that I want
to increase the vacuum draw on the PCT valve or add an additional vacuum source.

[t5rrr]

I remove the white honeycomb "filter" from the flametrap housing and stuck it back in the intake tube. So the excess gases from both dipstick and vapor canister gets routed through the tee, into the PB jar and back into the intake.

[KRUZNBY]

What type of hoses are recommended to carry oil ladened gasses? My understanding is the silicon is not recommended as it can deteriorate in the presence of excessive oil.