[Fot] Crankcase Venting - testing

[TR4 Tony]

Hi

I haven't found the need for vacuuming and in fact I think it introduces
another element of unreliability into the manifold, which I cannot tolerate
when rallying as the opportunities to repair are so limited 'in the
field/forests'.

Perhaps this is something just for track cars which get short bursts of uses
At constant high revs ?? I can't see any such system holding out with constant
use in an endurance environment where revs vary between idle and maximum
regularly.

Also, if you are running in wet conditions or extremes of temperature I would
expect a greater failure rate. Again, this is the world of rallying.

Regards

Tony

Sent from my iPhone

On 1 Feb 2013, at 14:06, Christopher Bock <SeaCubeCo at aol.com> wrote:

> I think  positive crankcase ventilation is the system and partial control
> valve is a tool in that process
>
> Terminology can be off but getting it to work is important.
>
> Chris
>
>
> On Feb 1, 2013, at 8:49 AM, EDWARD BARNARD <edwardbarnard at prodigy.net>
wrote:
>
>>
>> Chris: I do believe you mean:
>> PCV: Positive Crankcase Ventilation
>>
>> --- On Fri, 2/1/13, Christopher Bock <SeaCubeCo at aol.com> wrote:
>>
>> From: Christopher Bock <SeaCubeCo at aol.com>
>> Subject: Re: [Fot] Crankcase Venting - testing
>> To: "MadMarx" <tr4racing at googlemail.com>
>> Cc: "<fot at autox.team.net>" <fot at autox.team.net>
>> Date: Friday, February 1, 2013, 7:17 AM
>>
>> Just joking.
>>
>> PVC. Poly vinyl chloride.  White plastic tubing
>>
>> PCV. Particle control valve.
>>
>> Just having fun with.
>>
>> It is a great read
>> Chris
>>
>> On Feb 1, 2013, at 7:30 AM, "MadMarx" <tr4racing at googlemail.com> wrote:
>>
>>> I've just taken over the phrase.
>>>
>>> I'm talking about a valve which use the exhaust system to vent the
>>> crankcase.
>>>
>>> No idea if it is called PVC or PCV?
>>>
>>> Cheers
>>> Chris
>>>
>>> -----UrsprC<ngliche Nachricht-----
>>> Von: Christopher Bock [mailto:SeaCubeCo at aol.com]
>>> Gesendet: Freitag, 1. Februar 2013 13:27
>>> An: MadMarx
>>> Cc: <fot at autox.team.net>
>>> Betreff: Re: [Fot] Crankcase Venting - testing
>>>
>>> Are we talking about PVC or PCV?
>>>
>>> Chris
>>>
>>> On Feb 1, 2013, at 2:31 AM, "MadMarx" <tr4racing at googlemail.com> wrote:
>>>
>>>> How to test a PVC valve?
>>>>
>>>> After I had these several failures I've checked the valve before each
> run:
>>>>
>>>> - I pull the hose from the valve cover
>>>> - blow by mouth into the hose (to operate the valve)
>>>> - and suck back
>>>>
>>>> On sucking the valve has to block, totally block the sucking back. If
>>>> there is gentle blow by the valve is gone.
>>>>
>>>> My HD valve construction can be easy made by people who has a lathe.
>>>> The dimensions aren't important.
>>>> You can take the normal PVC valve as pattern.
>>>>
>>>> The spring is the important part. I used a snippet of a SU carb spring
>>>> for valve operating.
>>>>
>>>> Installed:
>>>> https://lh4.googleusercontent.com/-tEf8uoPfIBo/UJJmlQug4SI/AAAAAAAABhI
>>>> /GcSEH
>>>> 3d4wnU/s983/20121101_130726.jpg
>>>>
>>>>
>>>>
>>>> Cheers
>>>> Chris
>>>> _______________________________________________
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>>>>
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>>
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