How much pressure is in the transmission cooler hoses leading to the radiator

On 1 Nov 2006 13:39:26 -0800, "Comboverfish" <comboverfish@yahoo.com>
wrote:[color=blue]
>Ray O wrote:[/color]
[color=blue][color=green]
>> Where have you been? We can use your help for those few posters who actually
>> have problems![/color]
>
>I typically only reply to rec.auto.tech but sometimes a poster will
>query multiple groups so my reply and followups go to all groups
>involved.
>
>The Toyota group has really turned me off for a while now with the OT
>junk and those few idiot regulars that try to ruin it for everyone. At
>rec.auto.tech the idiots are easier to shoe away, or so it seems :)[/color]

Simple enough to fix - but first, you'll have to get a real
newsreader, as Google Groups doesn't offer any forms of filtering.
<cough [url]www.forteinc.com[/url] cough>

Then you warm up the Twit Filter in the offline news reader
software, and plonk all the people who are normally way off in left
field, and wouldn't know a clue if it walked up with a name tag on and
introduced itself.

Set the filter with a 30-60-90 day timeout if you think they may
develop a clue in time.

I have 18 entries in my filters for a.a.toyota at the moment (many
for one person) and all of the political threads that have turned into
inane shoutfests marked "Ignore", and I feel much better.

Doesn't take much to pull the Signal/Noise ratio out of the mud.

--<< Bruce >>--

Pardon me. My previous post should have appeared
in an Off-Topic thread, not this one.


--
Posted via a free Usenet account from [url]http://www.teranews.com[/url]

Comboverfish wrote:[color=blue]
> Mark wrote:[color=green]
> > Mark wrote:[color=darkred]
> > > I just replaced the radiator on my 95 Camry 4 cyl. I used new hoses
> > > for the upper and lower radiator feeds and 2 new hoses for the
> > > transmission cooler. I had a little trouble with the new transmission
> > > cooler hoses engaging them as far onto the fitting as I would like.
> > > The clamp is defnintly on over the bump in the fitting. I believe
> > > these hoses are not under high pressure.
> > > Is this correct? How much pressure is on the trany fluid that passes
> > > through the tranny cooler hoses?
> > >
> > > thanks
> > >
> > > Mark[/color][/color]
>
> I have never measured it directly, but I believe the cooler circuit
> runs about 10 to 30 psi. You should be OK if the clamp is past the
> tubing flare, but I can't help but wonder how you had any difficulty
> replacing the hoses. The factory hoses go back on quite easily, and
> new hose (of the correct ID) fits easily as well.
>
> That said, the cooler circuit can move fluid at a high rate of volume.
> If the hose pops off it won't take long to drain the sump.
>
> Toyota MDT in MO[/color]

they were generic hoses for tranny coolers,,, they were snug and I just
didn't get them inserted as far over the flare as I would have liked,
but they are on far enough that the clamp is fully past the flare so I
should be ok, just my usual bit of paranioa after a big job...
wondering about what I may have done wrong...

thanks


Mark

Comboverfish wrote:[color=blue]
> Ray O wrote:
>[color=green]
> > I don't recall ever seeing a spec on cooler pressure either, just line
> > pressures.
> >
> > Where have you been? We can use your help for those few posters who actually
> > have problems![/color]
>
> I typically only reply to rec.auto.tech but sometimes a poster will
> query multiple groups so my reply and followups go to all groups
> involved.
>
> The Toyota group has really turned me off for a while now with the OT
> junk and those few idiot regulars that try to ruin it for everyone. At
> rec.auto.tech the idiots are easier to shoe away, or so it seems :)
>
> Good to hear from you, Ray.
>
> Toyota MDT in MO[/color]

thanks guys, I'm sure its fine, just a bit of after job paranoia on my
part...

Mark

"Mark" <makolber@yahoo.com> wrote in message
news:1162438038.839910.300110@b28g2000cwb.googlegroups.com...[color=blue]
>
> Comboverfish wrote:[color=green]
>> Ray O wrote:
>>[color=darkred]
>> > I don't recall ever seeing a spec on cooler pressure either, just line
>> > pressures.
>> >
>> > Where have you been? We can use your help for those few posters who
>> > actually
>> > have problems![/color]
>>
>> I typically only reply to rec.auto.tech but sometimes a poster will
>> query multiple groups so my reply and followups go to all groups
>> involved.
>>
>> The Toyota group has really turned me off for a while now with the OT
>> junk and those few idiot regulars that try to ruin it for everyone. At
>> rec.auto.tech the idiots are easier to shoe away, or so it seems :)
>>
>> Good to hear from you, Ray.
>>
>> Toyota MDT in MO[/color]
>
> thanks guys, I'm sure its fine, just a bit of after job paranoia on my
> part...
>
> Mark[/color]

I checked the factory service manual for a 1997 Avalon, and pressures at the
test port range from 58~66 PSI in drive at idle to as high as 269 PSI in
reverse at stall speed. Of course, that kind of pressure does not travel
down the hoses to the transmission cooler, and a look at the transmission
oil pan will tell you that it is not designed to handle that kind of
pressure. There is no specification published for transmission cooler line
pressure. My guess is around 20 ~ 30 PSI.

Unless you have totally botched the hose installation, it shouldn't fail
catastrophically and will leak before it pops off so just keep an eye out
for leaks.
--

Ray O
(correct punctuation to reply)

Bruce L. Bergman wrote:
[color=blue]
> Simple enough to fix - but first, you'll have to get a real
> newsreader, as Google Groups doesn't offer any forms of filtering.
> <cough [url]www.forteinc.com[/url] cough>
>
> Then you warm up the Twit Filter in the offline news reader
> software, and plonk all the people who are normally way off in left
> field, and wouldn't know a clue if it walked up with a name tag on and
> introduced itself.
>
> Set the filter with a 30-60-90 day timeout if you think they may
> develop a clue in time.
>
> I have 18 entries in my filters for a.a.toyota at the moment (many
> for one person) and all of the political threads that have turned into
> inane shoutfests marked "Ignore", and I feel much better.
>
> Doesn't take much to pull the Signal/Noise ratio out of the mud.
>
> --<< Bruce >>--[/color]

Thanks Bruce,

I am aware of newsreaders and filters, but I do so much of my posting
at work on a public terminal that Google Groups is the only way to go.
It's really easy to see the idiots and avoid their posts, but they
often turn even a proper topic into crap to the point that answering
the OP is fruitless. You can thank 'Gary Burnwhore' for keeping me
away from alt.toyota for the most part. Good luck with that waste of
skin...

Toyota MDT in MO

Mark wrote:[color=blue]
> Comboverfish wrote:[color=green]
> > Mark wrote:[color=darkred]
> > > Mark wrote:
> > > > I just replaced the radiator on my 95 Camry 4 cyl. I used new hoses
> > > > for the upper and lower radiator feeds and 2 new hoses for the
> > > > transmission cooler. I had a little trouble with the new transmission
> > > > cooler hoses engaging them as far onto the fitting as I would like.
> > > > The clamp is defnintly on over the bump in the fitting. I believe
> > > > these hoses are not under high pressure.
> > > > Is this correct? How much pressure is on the trany fluid that passes
> > > > through the tranny cooler hoses?
> > > >
> > > > thanks
> > > >
> > > > Mark[/color]
> >
> > I have never measured it directly, but I believe the cooler circuit
> > runs about 10 to 30 psi. You should be OK if the clamp is past the
> > tubing flare, but I can't help but wonder how you had any difficulty
> > replacing the hoses. The factory hoses go back on quite easily, and
> > new hose (of the correct ID) fits easily as well.
> >
> > That said, the cooler circuit can move fluid at a high rate of volume.
> > If the hose pops off it won't take long to drain the sump.
> >
> > Toyota MDT in MO[/color]
>
> they were generic hoses for tranny coolers,,, they were snug and I just
> didn't get them inserted as far over the flare as I would have liked,
> but they are on far enough that the clamp is fully past the flare so I
> should be ok, just my usual bit of paranioa after a big job...
> wondering about what I may have done wrong...
>
> thanks
>
>
> Mark[/color]
Always rub some fluid on the inside of the hose before pushing it on
the fitting and you will find it goes on easier and further. Do not use
KY jelly.

[color=blue]
> Always rub some fluid on the inside of the hose before pushing it on
> the fitting and you will find it goes on easier and further. Do not use
> KY jelly.[/color]

thanks

Mark