[Healeys] PCV installation BJ8

[Bob Spidell]

Looks like a clean install to me (I like the 'aftermarket' heat shield; 
I have one made for a 100M on the shelf if I do get around to installing 
PCV on my BN2). How did you seal up the road draft tube? Any noticeable 
effect on oil consumption/drips?).


On 3/22/2022 9:24 AM, Michael Salter wrote:
> 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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>
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