<VV> Blow By Question

Frank DuVal corvairduval at cox.net
Wed May 29 00:32:20 EDT 2013


The old method we used was to remove the oil pan and cut the part of the 
dip stick tube off that sticks below the block. This does have the bad 
side effect of allowing the blowby gasses to get into the engine 
compartment and then pulled into the passenger compartment when the 
heater is on. The same thing will happen if you put a hole in the oil 
filler cap, but all you would need to correct it is to replace the cap.

You could run a hose from your hole in the cap to outside the engine 
compartment so fumes will not be sucked into the heater.

BTW, why would you check the oil with the engine running? It proves 
nothing. There is no data to compare running oil levels, and it just 
makes a mess!

Frank DuVal

On 5/28/2013 8:37 PM, Bob Gilbert wrote:
> I don't normally!
> Time is of the essence for this particular car as its going to be a gift in
> the next few days. So for now the problem will be "solved" with a small hole
> in the oil filler cap to relieve the crankcase pressure. It's not a
> permanent fix of course but does allow the car to be driven to its new home
> without oil spewing out of the dipstick tube.
> Regards,
> Bob
>
>
> -----Original Message-----
> From: harryyarnell [mailto:harryyarnell at verizon.net]
> Sent: May-28-13 5:11 PM
> To: 'Bob Gilbert'; virtualvairs at corvair.org
> Subject: RE: <VV> Blow By Question
>
> Never measure oil level with the engine running!
>
> -----Original Message-----
> From: virtualvairs-bounces at corvair.org
> [mailto:virtualvairs-bounces at corvair.org] On Behalf Of Bob Gilbert
> Sent: Tuesday, May 28, 2013 5:54 PM
> To: virtualvairs at corvair.org
> Subject: <VV> Blow By Question
>
> Hi,
>
> My friends 67 PG runs well, idles smoothly but is now exhibiting blow by at
> higher RPMS - to the point that oil comes out of the dip stick tube.
>
> I first detected the problem when I happened to check the oil level while
> the engine was running and noticed that it was well above the level when
> cold. At high RPMs it bubbles out the top of the tube.
>
>   
>
> Two questions:
>
> With the oil showing an inch or so above the full mark at 1500 RPMs is the
> engine still being properly lubricated?
>
> Directly related - it is safe to drive short distances until it can be
> fixed?
>
>   
>
> Regards,
>
> Bob



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