V288/FV308 PCV Install (Best4x4 Mod)
Camel Trophy
Joined: Dec 2009
Posts: 3,883
Likes: 951
From: Charlotte
Instead of a wood screw I may try to bend a short hook on the end of a piece of coat hanger wire, insert that through the hole I drill, and pull up.
All this got me to thinking about the effect of some plastic bits from the oil separator falling onto the top of the head. I expect they'd either get washed away and eventually trapped in the oil filter or just sit there on the top of the head. Doesn't seem like something to get all worked up about. Or could they clog or block and oil passage and result in a bearing or something else being oil-starved? What do you guys think?
Last edited by mln01; Oct 8, 2019 at 03:25 PM.
Camel Trophy
Joined: May 2016
Posts: 3,969
Likes: 859
From: Britainistan, UK
Camel Trophy
Joined: Dec 2009
Posts: 3,883
Likes: 951
From: Charlotte
After a couple days of soaking and coaxing the oil separator came out today, although I broke off the top of it yesterday with my needle-nose pliers. It wasn't clogged at all; just a little gunked up. I ordered the PCV valve today. It's supposed to arrive the day after tomorrow.
Camel Trophy
Joined: Dec 2009
Posts: 3,883
Likes: 951
From: Charlotte
The PCV valve arrived today and I installed it, but I have an observation to share and a question.
First the observation. I was at first concerned that the hose end of the PCV valve was too large for the hose to fit since its diameter is significantly larger than the hose end of the brass fitting I installed 10 years ago, but I'm happy to report the hose slid right on with little effort. The moral of the story is that you shouldn't be concerned that the diameter of the PCV valve appears to be too large.
And now the question. I understand that on some (many?) trucks the oil separator gets clogged causing increased pressure that leads to oil leaks past the gaskets, but that wasn't the case on my truck.
So my question is this -- why not just remove the oil separator and skip installing the PCV valve? If the oil separator is not clogged there is nothing restricting the flow of crankcase gasses to the intake manifold and vice versa, so why is a PCV valve needed? I read there's something out there about protecting the engine in case of backfire, but is that even a thing with fuel injection (maybe it is; I don't know)? And the oil separator doesn't address that. Or does it? I'm genuinely curious about these questions. Thanks.
First the observation. I was at first concerned that the hose end of the PCV valve was too large for the hose to fit since its diameter is significantly larger than the hose end of the brass fitting I installed 10 years ago, but I'm happy to report the hose slid right on with little effort. The moral of the story is that you shouldn't be concerned that the diameter of the PCV valve appears to be too large.
And now the question. I understand that on some (many?) trucks the oil separator gets clogged causing increased pressure that leads to oil leaks past the gaskets, but that wasn't the case on my truck.
So my question is this -- why not just remove the oil separator and skip installing the PCV valve? If the oil separator is not clogged there is nothing restricting the flow of crankcase gasses to the intake manifold and vice versa, so why is a PCV valve needed? I read there's something out there about protecting the engine in case of backfire, but is that even a thing with fuel injection (maybe it is; I don't know)? And the oil separator doesn't address that. Or does it? I'm genuinely curious about these questions. Thanks.
Last edited by mln01; Oct 14, 2019 at 12:40 PM.