[Mgs] Gulp Valve Question

Max Heim max_heim at sbcglobal.net
Sat Jun 16 19:23:51 MDT 2007


Maybe, from a technical standpoint, but I really doubt it *effectively*
lowers the octane. Unless you have a major crankcase pressurization problem,
like bad rings, you'd only be talking a few parts per million of oil --
you're probably gettng more than that through the valvestem seals.

I wouldn't consider that a factor whatsoever.


--

Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires


on 6/16/07 6:01 PM, Rick Lindsay at rolindsay at yahoo.com wrote:

> My solution has been to block off the entire valve as
> it is a potential source of vacuum leak.  The less
> green just rout the crankcase breather, via a long
> hose, down under the car.  Why?  Adding oil vapor back
> to the inlet charge the lowers the effective octane.
> 
> rick
> 
> --- RampantNM at aol.com wrote:
> 
>> I've removed the smog pump from my 74.5 BGT this
>> morning  and will put the
>> plugs in the head shortly (thanks Larry).  One
>> question,  probably already asked
>> and answered, but what should I do about the gulp
>> valve?  Block it off?
>> Remove it and plug the intake manifold  hose?
>>  
>> Also, there is no EGR are valve evident from the
>> front timing cover hose to
>> the inlet on the intake....any aftermarket thoughts
>> on one I could find at
>> Autozone or PepBoys today?
>>  
>> Robert Houston


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