Mike Romain <romainm@sympatico.ca> wrote in
news:40E8195C.6EE027E8@sympatico.ca:

> That valve defaults in the open position with no vacuum applied in my
> 88.
>
> Don't forget the block drain, it is under the exhaust near the rear of
> the block.
>

Do I have to open that drain even with using the backflush kit?


--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K

"The examined life is no picnic." - Robert Fulghum

 

Pat Blank wrote:
>
> Mike Romain <romainm@sympatico.ca> wrote in
> news:40E8195C.6EE027E8@sympatico.ca:
>
> > That valve defaults in the open position with no vacuum applied in my
> > 88.
> >
> > Don't forget the block drain, it is under the exhaust near the rear of
> > the block.
> >
>
> Do I have to open that drain even with using the backflush kit?
>
> --
> pat -

If you only want to clean the rads out, then no. If you want to clean
the whole works out, then yes.

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

 

Pat Blank wrote:
>
> Mike Romain <romainm@sympatico.ca> wrote in
> news:40E8195C.6EE027E8@sympatico.ca:
>
> > That valve defaults in the open position with no vacuum applied in my
> > 88.
> >
> > Don't forget the block drain, it is under the exhaust near the rear of
> > the block.
> >
>
> Do I have to open that drain even with using the backflush kit?
>
> --
> pat -

If you only want to clean the rads out, then no. If you want to clean
the whole works out, then yes.

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

 

Pat Blank wrote:
>
> Mike Romain <romainm@sympatico.ca> wrote in
> news:40E8195C.6EE027E8@sympatico.ca:
>
> > That valve defaults in the open position with no vacuum applied in my
> > 88.
> >
> > Don't forget the block drain, it is under the exhaust near the rear of
> > the block.
> >
>
> Do I have to open that drain even with using the backflush kit?
>
> --
> pat -

If you only want to clean the rads out, then no. If you want to clean
the whole works out, then yes.

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

 

Pat Blank wrote:
>
> Mike Romain <romainm@sympatico.ca> wrote in
> news:40E8195C.6EE027E8@sympatico.ca:
>
> > That valve defaults in the open position with no vacuum applied in my
> > 88.
> >
> > Don't forget the block drain, it is under the exhaust near the rear of
> > the block.
> >
>
> Do I have to open that drain even with using the backflush kit?
>
> --
> pat -

If you only want to clean the rads out, then no. If you want to clean
the whole works out, then yes.

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

 

"DougW" <post.replies@invalid.address> wrote in
news:wmUFc.35623$Lh.19214@okepread01:

> Interesting. A heater core bypass valve. Haven't seen those
> in a looooong time. All it does is bypass the flow to your
> heater core when the heat isn't on.
>
> It would keep the flush from going throug your heater core
> unless you had the heat turned on. If all your after is the
> radiator and block it won't bother anything. IF you want to
> flush the heater core too, just turn the heat on.
>

Alright. While attempting to get the top heater hose off the valve, the
hose fitting snapped like a twig. So I had to remove the valve and run
both heater hoses to the firewall. Will this be a problem? I also
plugged the vacuum line going to the valve, is that the proper thing to
do?

Please forgive me for being a PITA. :/

--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K 235s

"The examined life is no picnic." - Robert Fulghum

 

"DougW" <post.replies@invalid.address> wrote in
news:wmUFc.35623$Lh.19214@okepread01:

> Interesting. A heater core bypass valve. Haven't seen those
> in a looooong time. All it does is bypass the flow to your
> heater core when the heat isn't on.
>
> It would keep the flush from going throug your heater core
> unless you had the heat turned on. If all your after is the
> radiator and block it won't bother anything. IF you want to
> flush the heater core too, just turn the heat on.
>

Alright. While attempting to get the top heater hose off the valve, the
hose fitting snapped like a twig. So I had to remove the valve and run
both heater hoses to the firewall. Will this be a problem? I also
plugged the vacuum line going to the valve, is that the proper thing to
do?

Please forgive me for being a PITA. :/

--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K 235s

"The examined life is no picnic." - Robert Fulghum

 

"DougW" <post.replies@invalid.address> wrote in
news:wmUFc.35623$Lh.19214@okepread01:

> Interesting. A heater core bypass valve. Haven't seen those
> in a looooong time. All it does is bypass the flow to your
> heater core when the heat isn't on.
>
> It would keep the flush from going throug your heater core
> unless you had the heat turned on. If all your after is the
> radiator and block it won't bother anything. IF you want to
> flush the heater core too, just turn the heat on.
>

Alright. While attempting to get the top heater hose off the valve, the
hose fitting snapped like a twig. So I had to remove the valve and run
both heater hoses to the firewall. Will this be a problem? I also
plugged the vacuum line going to the valve, is that the proper thing to
do?

Please forgive me for being a PITA. :/

--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K 235s

"The examined life is no picnic." - Robert Fulghum

 

"DougW" <post.replies@invalid.address> wrote in
news:wmUFc.35623$Lh.19214@okepread01:

> Interesting. A heater core bypass valve. Haven't seen those
> in a looooong time. All it does is bypass the flow to your
> heater core when the heat isn't on.
>
> It would keep the flush from going throug your heater core
> unless you had the heat turned on. If all your after is the
> radiator and block it won't bother anything. IF you want to
> flush the heater core too, just turn the heat on.
>

Alright. While attempting to get the top heater hose off the valve, the
hose fitting snapped like a twig. So I had to remove the valve and run
both heater hoses to the firewall. Will this be a problem? I also
plugged the vacuum line going to the valve, is that the proper thing to
do?

Please forgive me for being a PITA. :/

--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K 235s

"The examined life is no picnic." - Robert Fulghum

 

Pat Blank did pass the time by typing:

> Alright. While attempting to get the top heater hose off the valve, the
> hose fitting snapped like a twig. So I had to remove the valve and run
> both heater hoses to the firewall. Will this be a problem?

Nope. Not near as much as having that snap while you were on the road.

> I also
> plugged the vacuum line going to the valve, is that the proper thing to
> do?

Yep. Otherwise you will have a vac leak and that can cause all sort of
wonky things.

> Please forgive me for being a PITA. :/

Ok. :)

...seriously.. It's failure to ask questions that is bad. :)

--
DougW