[Healeys] PCV installation BJ8

[Michael Salter]

That particular PCV valve was selected because that is it's orientation in
its OEM use and it is spring closed.

M

On Tue., Mar. 22, 2022, 12:51 p.m. Harold Manifold, <manifold at telus.net>
wrote:

> Michael,
>
>
>
> Nice job done on the PCV system. I have been trying different
> configurations as well and agree finding the right PCV valve is important.
> Is the Toyota PCV you used gravity to close (i.e. should be mounted
> vertically) or spring to close so it will work in all orientations. Most of
> the PCV valves I have come across should be mounted vertically and mine
> would be horizontal.
>
>
>
> Thanks,
>
>
>
> Harold
>
>
>
> *From: *Michael Salter via Healeys <healeys at autox.team.net>
> *Sent: *Tuesday, March 22, 2022 9:28 AM
> *To: *Bob Spidell <bspidell at comcast.net>; healeys at autox.team.net
> *Subject: *Re: [Healeys] PCV installation BJ8
>
>
>
> Well the system that I installed on my BN1 using a Toyota Pathfinder valve
> was somewhat effective but certainly not perfect. Not easy to see in the
> attached pic.
>
> I found that at normal cruise the ccp ranged between +2" and -3".
>
> Lifting off the throttle momentarily would establish the -3" pressure
> which would hold until the engine was taken back to idle. After that the
> pressure would fluctuate as one accelerated through the gears then
> establish at around 0 in at steady speed until the throttle was closed,
> then back to -3".
>
> I'm fairly sure that these figures are a consequence of the type of PCV
> valve used but it is impossible to get specific information about various
> valves.
>
> M
>
>
>
> On Tue., Mar. 22, 2022, 12:00 p.m. Bob Spidell, <bspidell at comcast.net>
> wrote:
>
> Hmmmmm ... looks like the hard plastic tube you get with oil suction
> pumps. So, what does it reveal?
> bs
>
> On 3/22/2022 8:52 AM, Michael Salter wrote:
>
> It's actually quite easy to test on the highway.
>
> I made this very basic manometer and plugged the end of the tube into the
> dipstick hole.
>
> Drive around with a passenger watching the displacement of the water in
> the tube ...  very revealing.
>
>
>
> M
>
>
>
> On Tue., Mar. 22, 2022, 11:15 a.m. Bob Spidell, <bspidell at comcast.net>
> wrote:
>
> I started with the BCS kit, so I have the sealing washer on the dipstick,
> and I put a screw in the hole in the oil filler cap (I didn't think solder
> would stick on the oily cap, and I wanted 'reversible' at the time). At
> idle, you can feel a vacuum if you put the palm of your hand over the oil
> filler hole (haven't tried it on the highway).
>
> On 3/21/2022 10:43 PM, i erbs wrote:
>
> Did you do anything else? Just ran the pvc to the manifold? That's it?
> What about the hole in the oil cap? I have a bj8 manifold on my bt7 engine.
> I get a lot of blowby into my rear air filter. Had Rocker arm checked...all
> good.
>
> Ira Erbs
> 1959 AH 100-6
> 1967 MGB
> Milwaukie, Or
>
>
>
> On Mon, Mar 21, 2022, 5:31 PM Bob Spidell <bspidell at comcast.net> wrote:
>
> Here's how my mechanic did it. Best to balance both carbs, but using the
> unused port on the manifold works OK too.  I ran that way for many
> years; the thread is some sort of Brit thread, I drilled and tapped it
> for an American one.
>
> On 3/21/2022 10:51 AM, Michael DiVito via Healeys wrote:
> > Planning to install a PCV on my BJ8 and having trouble finding the right
> hardware to connect to the manifold. The plug in the manifold where I will
> connect the PCV is 3/8” with a fine thread pattern. Does anyone know where
> I might purchase a suitable connector which has the correct 3/8” threaded
> end for the manifold connection and a 1/2” barbed end for connection to the
> PCV?  Also if anyone has already done a PCV install advice appreciated.
> >
> > Michael P. DiVito
>
>
>
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