Re: Changing valve seals - putting air into cylinder - hear airleaking - help
 

Correct.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

William Oliveri wrote:
>
> So, am I worrying about nothing then? Just because I'm hearing air and
> feeling air out the pcv valve hose then this is ok. In other words, the
> cylinder should not completely contain the air. This is normal? I'm
> freaking and thinking all the rings are bad because I hear air. Please
> correct me.
>
> Thanks,
>
> Bill

Re: Changing valve seals - putting air into cylinder - hear airleaking - help
 

Correct.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

William Oliveri wrote:
>
> So, am I worrying about nothing then? Just because I'm hearing air and
> feeling air out the pcv valve hose then this is ok. In other words, the
> cylinder should not completely contain the air. This is normal? I'm
> freaking and thinking all the rings are bad because I hear air. Please
> correct me.
>
> Thanks,
>
> Bill

Re: Changing valve seals - putting air into cylinder - hear air leaking - help
 

You'll always get some leaking by the rings, even in a brand new engine.
There is a small gap of .020-.030" left where the ring ends almost come
together. If you do a leakdown test as per my earlier post, it will tell you
how much you are losing. A stock type rebuild will have as much as 8%
leakdown when it is brand new. This doesn't mean that anything was done
wrong, it's just the way it is. A racing engine will have less leakdown
(usually 2-3% for a well built race engine) when the engine is new because
they use tighter ring end gaps and a smoother bore finish when the engine is
honed. Now if you hear a large rush of air coming out the tailpipe or intake
and the valves are closed, then there is a problem. Also, your radiator
shouldn't look like Old Faithful either. ;).

Chris



"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bv1n3r$munk5$1@ID-193866.news.uni-berlin.de...
> So, am I worrying about nothing then? Just because I'm hearing air and
> feeling air out the pcv valve hose then this is ok. In other words, the
> cylinder should not completely contain the air. This is normal? I'm
> freaking and thinking all the rings are bad because I hear air. Please
> correct me.
>
> Thanks,
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@cox.net> wrote in message
> news:401458E6.1AEEEF39@cox.net...
> > Yes, you hear lots of air, but as I remember I was able to change
> > the seal I'm working on before the compressor starts.
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Poured about a table spoon down #1, cranked it over a few times by
hand
> > > (found TDC twice) and tested again. Still I'm hearing the air.
> > >
> > > I should not be hearing air, right? It sounds like I'm filling a tank
> with
> > > air.
> > >
> > > Just to let you know, I'm finding the compression stroke by sticking
my
> > > finger in the spark plug hole and turning the crank. When I feel
> pressure
> > > against my finger then I know I'm on the compression stroke and then
> look
> > > for the timing mark to reach TCD or just before.
>
>

Re: Changing valve seals - putting air into cylinder - hear air leaking - help
 

You'll always get some leaking by the rings, even in a brand new engine.
There is a small gap of .020-.030" left where the ring ends almost come
together. If you do a leakdown test as per my earlier post, it will tell you
how much you are losing. A stock type rebuild will have as much as 8%
leakdown when it is brand new. This doesn't mean that anything was done
wrong, it's just the way it is. A racing engine will have less leakdown
(usually 2-3% for a well built race engine) when the engine is new because
they use tighter ring end gaps and a smoother bore finish when the engine is
honed. Now if you hear a large rush of air coming out the tailpipe or intake
and the valves are closed, then there is a problem. Also, your radiator
shouldn't look like Old Faithful either. ;).

Chris



"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bv1n3r$munk5$1@ID-193866.news.uni-berlin.de...
> So, am I worrying about nothing then? Just because I'm hearing air and
> feeling air out the pcv valve hose then this is ok. In other words, the
> cylinder should not completely contain the air. This is normal? I'm
> freaking and thinking all the rings are bad because I hear air. Please
> correct me.
>
> Thanks,
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@cox.net> wrote in message
> news:401458E6.1AEEEF39@cox.net...
> > Yes, you hear lots of air, but as I remember I was able to change
> > the seal I'm working on before the compressor starts.
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Poured about a table spoon down #1, cranked it over a few times by
hand
> > > (found TDC twice) and tested again. Still I'm hearing the air.
> > >
> > > I should not be hearing air, right? It sounds like I'm filling a tank
> with
> > > air.
> > >
> > > Just to let you know, I'm finding the compression stroke by sticking
my
> > > finger in the spark plug hole and turning the crank. When I feel
> pressure
> > > against my finger then I know I'm on the compression stroke and then
> look
> > > for the timing mark to reach TCD or just before.
>
>

Re: Changing valve seals - putting air into cylinder - hear air leaking - help
 

You'll always get some leaking by the rings, even in a brand new engine.
There is a small gap of .020-.030" left where the ring ends almost come
together. If you do a leakdown test as per my earlier post, it will tell you
how much you are losing. A stock type rebuild will have as much as 8%
leakdown when it is brand new. This doesn't mean that anything was done
wrong, it's just the way it is. A racing engine will have less leakdown
(usually 2-3% for a well built race engine) when the engine is new because
they use tighter ring end gaps and a smoother bore finish when the engine is
honed. Now if you hear a large rush of air coming out the tailpipe or intake
and the valves are closed, then there is a problem. Also, your radiator
shouldn't look like Old Faithful either. ;).

Chris



"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bv1n3r$munk5$1@ID-193866.news.uni-berlin.de...
> So, am I worrying about nothing then? Just because I'm hearing air and
> feeling air out the pcv valve hose then this is ok. In other words, the
> cylinder should not completely contain the air. This is normal? I'm
> freaking and thinking all the rings are bad because I hear air. Please
> correct me.
>
> Thanks,
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@cox.net> wrote in message
> news:401458E6.1AEEEF39@cox.net...
> > Yes, you hear lots of air, but as I remember I was able to change
> > the seal I'm working on before the compressor starts.
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Poured about a table spoon down #1, cranked it over a few times by
hand
> > > (found TDC twice) and tested again. Still I'm hearing the air.
> > >
> > > I should not be hearing air, right? It sounds like I'm filling a tank
> with
> > > air.
> > >
> > > Just to let you know, I'm finding the compression stroke by sticking
my
> > > finger in the spark plug hole and turning the crank. When I feel
> pressure
> > > against my finger then I know I'm on the compression stroke and then
> look
> > > for the timing mark to reach TCD or just before.
>
>

Re: Changing valve seals - putting air into cylinder - hear airleaking - help
 

The valves can leak too....

When you have the old seal off, dab a little oil around the valve stem
to see how many bubbles come up.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"L.W.(ßill) ------ III" wrote:
>
> Correct.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > So, am I worrying about nothing then? Just because I'm hearing air and
> > feeling air out the pcv valve hose then this is ok. In other words, the
> > cylinder should not completely contain the air. This is normal? I'm
> > freaking and thinking all the rings are bad because I hear air. Please
> > correct me.
> >
> > Thanks,
> >
> > Bill

Re: Changing valve seals - putting air into cylinder - hear airleaking - help
 

The valves can leak too....

When you have the old seal off, dab a little oil around the valve stem
to see how many bubbles come up.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"L.W.(ßill) ------ III" wrote:
>
> Correct.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > So, am I worrying about nothing then? Just because I'm hearing air and
> > feeling air out the pcv valve hose then this is ok. In other words, the
> > cylinder should not completely contain the air. This is normal? I'm
> > freaking and thinking all the rings are bad because I hear air. Please
> > correct me.
> >
> > Thanks,
> >
> > Bill

Re: Changing valve seals - putting air into cylinder - hear airleaking - help
 

The valves can leak too....

When you have the old seal off, dab a little oil around the valve stem
to see how many bubbles come up.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"L.W.(ßill) ------ III" wrote:
>
> Correct.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > So, am I worrying about nothing then? Just because I'm hearing air and
> > feeling air out the pcv valve hose then this is ok. In other words, the
> > cylinder should not completely contain the air. This is normal? I'm
> > freaking and thinking all the rings are bad because I hear air. Please
> > correct me.
> >
> > Thanks,
> >
> > Bill

Re: Changing valve seals - putting air into cylinder - hear air leaking - help
 

Yeah, I'm working on building my own Leak Down Tester. Bout halfway there.

Thanks,


"c" <c@me.org> wrote in message
news:PT_Qb.110970$fq1.100016@twister.rdc-kc.rr.com...
> You'll always get some leaking by the rings, even in a brand new engine.
> There is a small gap of .020-.030" left where the ring ends almost come
> together. If you do a leakdown test as per my earlier post, it will tell
you
> how much you are losing. A stock type rebuild will have as much as 8%
> leakdown when it is brand new. This doesn't mean that anything was done
> wrong, it's just the way it is. A racing engine will have less leakdown
> (usually 2-3% for a well built race engine) when the engine is new because
> they use tighter ring end gaps and a smoother bore finish when the engine
is
> honed. Now if you hear a large rush of air coming out the tailpipe or
intake
> and the valves are closed, then there is a problem. Also, your radiator
> shouldn't look like Old Faithful either. ;).
>
> Chris
>
>
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:bv1n3r$munk5$1@ID-193866.news.uni-berlin.de...
> > So, am I worrying about nothing then? Just because I'm hearing air and
> > feeling air out the pcv valve hose then this is ok. In other words, the
> > cylinder should not completely contain the air. This is normal? I'm
> > freaking and thinking all the rings are bad because I hear air. Please
> > correct me.
> >
> > Thanks,
> >
> > Bill
> >
> >
> > "L.W. (ßill) ------ III" <----------@cox.net> wrote in message
> > news:401458E6.1AEEEF39@cox.net...
> > > Yes, you hear lots of air, but as I remember I was able to change
> > > the seal I'm working on before the compressor starts.
> > > God Bless America, ßill O|||||||O
> > > mailto:-------------------- http://www.----------.com/
> > >
> > > William Oliveri wrote:
> > > >
> > > > Poured about a table spoon down #1, cranked it over a few times by
> hand
> > > > (found TDC twice) and tested again. Still I'm hearing the air.
> > > >
> > > > I should not be hearing air, right? It sounds like I'm filling a
tank
> > with
> > > > air.
> > > >
> > > > Just to let you know, I'm finding the compression stroke by sticking
> my
> > > > finger in the spark plug hole and turning the crank. When I feel
> > pressure
> > > > against my finger then I know I'm on the compression stroke and then
> > look
> > > > for the timing mark to reach TCD or just before.
> >
> >
>
>

Re: Changing valve seals - putting air into cylinder - hear air leaking - help
 

Yeah, I'm working on building my own Leak Down Tester. Bout halfway there.

Thanks,


"c" <c@me.org> wrote in message
news:PT_Qb.110970$fq1.100016@twister.rdc-kc.rr.com...
> You'll always get some leaking by the rings, even in a brand new engine.
> There is a small gap of .020-.030" left where the ring ends almost come
> together. If you do a leakdown test as per my earlier post, it will tell
you
> how much you are losing. A stock type rebuild will have as much as 8%
> leakdown when it is brand new. This doesn't mean that anything was done
> wrong, it's just the way it is. A racing engine will have less leakdown
> (usually 2-3% for a well built race engine) when the engine is new because
> they use tighter ring end gaps and a smoother bore finish when the engine
is
> honed. Now if you hear a large rush of air coming out the tailpipe or
intake
> and the valves are closed, then there is a problem. Also, your radiator
> shouldn't look like Old Faithful either. ;).
>
> Chris
>
>
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:bv1n3r$munk5$1@ID-193866.news.uni-berlin.de...
> > So, am I worrying about nothing then? Just because I'm hearing air and
> > feeling air out the pcv valve hose then this is ok. In other words, the
> > cylinder should not completely contain the air. This is normal? I'm
> > freaking and thinking all the rings are bad because I hear air. Please
> > correct me.
> >
> > Thanks,
> >
> > Bill
> >
> >
> > "L.W. (ßill) ------ III" <----------@cox.net> wrote in message
> > news:401458E6.1AEEEF39@cox.net...
> > > Yes, you hear lots of air, but as I remember I was able to change
> > > the seal I'm working on before the compressor starts.
> > > God Bless America, ßill O|||||||O
> > > mailto:-------------------- http://www.----------.com/
> > >
> > > William Oliveri wrote:
> > > >
> > > > Poured about a table spoon down #1, cranked it over a few times by
> hand
> > > > (found TDC twice) and tested again. Still I'm hearing the air.
> > > >
> > > > I should not be hearing air, right? It sounds like I'm filling a
tank
> > with
> > > > air.
> > > >
> > > > Just to let you know, I'm finding the compression stroke by sticking
> my
> > > > finger in the spark plug hole and turning the crank. When I feel
> > pressure
> > > > against my finger then I know I'm on the compression stroke and then
> > look
> > > > for the timing mark to reach TCD or just before.
> >
> >
>
>