Classic Mustangs List Archive

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Mail From: Klaus Breuer (email redacted)

Hi everybody!

I'm the happy owner of a 1968 289 Mustang Coupe, and am having lots
of fun with it. Seems that I'm turning up at work with black hands
every morning

I was messing about under the hood (can you *believe* that the left
export brace was actually loose?) when I noticed a very old rubber
hose connecting from an area on top of the engine just behind the air
filter to a metal pipe, which disappeared over the transmission out
of sight.
The metal pipe was not held down by anything and moved about. When I
pulled (carefully!) at it, it readily came away in my hand.

It has a rubber hose at the lower end as well, and is *filthy*. The
rubber hose connecting it to the motor had been cut and messed with, and
it looks as if it had leaked oil on the engine block.

Now that thingy is on my desk (somewhat cleaner), and I have absolutely
no idea what it is. I have the nasty feeling that my little Pony will
pine for it if I don't put it back properly, but I don't even know
where it's supposed to connect at the bottom (trans?).

Can anybody help me out?

Also, the connection from the left headers to the exhaust pipe has come
a bit loose (nasty rough sound), and I simply can't tighten the inner
of the two nuts holding it down - how on earth can I work a nut which is
*right next* to the exhaust pipe?

Ciao,
Klaus
---
"What, I need a *reason* for everything?" -- Calvin
"Should I or shouldn't I? Too late, I did!" -- Hobbes

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This read-only message was archived from a public mail list.
Mail From: speegle (email redacted)

Klaus Breuer wrote:

> I was messing................(SNIP
> The metal pipe was not held down by anything and moved about. When I
> pulled (carefully!) at it, it readily came away in my hand.
>
> It has a rubber hose at the lower end as well, and is *filthy*. The
> rubber hose connecting it to the motor had been cut and messed with, and
> it looks as if it had leaked oil on the engine block.
>
> Can anybody help me out?
>
Is your car an automatic and is the metal tubing a fairly small (approx
1/8" in dia)?

If so its likely the vacuum line to the transmission modulator

Jeff Speegle
MCA ANHJ

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This read-only message was archived from a public mail list.
Mail From: Klaus Breuer (email redacted)

Hi!

speegle wrote:
>
> Klaus Breuer wrote:
>
> > I was messing................(SNIP
> > The metal pipe was not held down by anything and moved about. When I
> > pulled (carefully!) at it, it readily came away in my hand.
> >
> > It has a rubber hose at the lower end as well, and is *filthy*. The
> > rubber hose connecting it to the motor had been cut and messed with, and
> > it looks as if it had leaked oil on the engine block.
> >
> > Can anybody help me out?
> >
> Is your car an automatic and is the metal tubing a fairly small (approx
> 1/8" in dia)?

Yes, exactly.

> If so its likely the vacuum line to the transmission modulator

Ummm...what's that and what does it do? What happens if I leave it
off for a few days?

Thanks for your quick reply!

Ciao,
Klaus
---
"What, I need a *reason* for everything?" -- Calvin
"Should I or shouldn't I? Too late, I did!" -- Hobbes

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This read-only message was archived from a public mail list.
Mail From: David L. Burkhead (email redacted)

----- Original Message -----
From: Klaus Breuer <(email redacted)>
To: <(email redacted)>
Sent: Tuesday, April 27, 1999 11:01 PM
Subject: [CM:16831] Strange pipe behind the engine?


> Hi everybody!

Hello back.

> I'm the happy owner of a 1968 289 Mustang Coupe, and am having lots
> of fun with it. Seems that I'm turning up at work with black hands
> every morning

Well, I do most of my tinkering at night--before showering--and there
are some good soaps for getting the grease off.

> I was messing about under the hood (can you *believe* that the left
> export brace was actually loose?) when I noticed a very old rubber
> hose connecting from an area on top of the engine just behind the air
> filter to a metal pipe, which disappeared over the transmission out
> of sight.
> The metal pipe was not held down by anything and moved about. When I
> pulled (carefully!) at it, it readily came away in my hand.

You have an automatic transmission, right?

> It has a rubber hose at the lower end as well, and is *filthy*. The
> rubber hose connecting it to the motor had been cut and messed with, and
> it looks as if it had leaked oil on the engine block.

> Now that thingy is on my desk (somewhat cleaner), and I have absolutely
> no idea what it is. I have the nasty feeling that my little Pony will
> pine for it if I don't put it back properly, but I don't even know
> where it's supposed to connect at the bottom (trans?).

I believe you have just disconnected the vacuum kickdown to the
transmission. This is the doodad that lets the transmission know that
you've tromped on the gas (by reduced vacuum) and causes it to shift into a
lower gear for passing or otherwise accelerating. Without it, your
transmission will think you're at wide open throttle all the time and will
shift very late. This translates into the engine revving high and is not
good to do on a regular basis.

The bottom end is connected, via a short length of vacuum hose, to the
vacuum modulator valve on the transmission. The top end connects, through
another length of vacuum hose, to the vacuum tree on the manifold. I don't
know about connections in between.


> Can anybody help me out?
>
> Also, the connection from the left headers to the exhaust pipe has come
> a bit loose (nasty rough sound), and I simply can't tighten the inner
> of the two nuts holding it down - how on earth can I work a nut which is
> *right next* to the exhaust pipe?

Actually, that sounds to me like a blown doughnut gasket. As for
tightening the nut, I use a ratchet, a couple of extensions, and a couple of
U-joint connectors. That gives me the clearance to work on it. However,
sometimes I've had them freeze up (the heat environment there is pretty
severe). The last time that happened, I took it into an exhaust shop, being
afraid of breaking something.

David L. Burkhead "Dum vivimus, vivamus!"
Advanced Surface Microscopy, Inc. "While we live, let us LIVE!"
mailtoemail redacted)
a1.com/asm
Space -- Japanese Animation -- History -- Science Fiction
'72 Mustang
disclaimer: none of the opinions in this message are necessarily
those of ASM, Inc.



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This read-only message was archived from a public mail list.
Mail From: Klaus Breuer (email redacted)

Rehi!

> > I'm the happy owner of a 1968 289 Mustang Coupe, and am having lots
> > of fun with it. Seems that I'm turning up at work with black hands
> > every morning
>
> Well, I do most of my tinkering at night--before showering--and there
> are some good soaps for getting the grease off.

I know. So do I. And then I do it again in the mornings

> > I was messing about under the hood (can you *believe* that the left
> > export brace was actually loose?) when I noticed a very old rubber
> > hose connecting from an area on top of the engine just behind the air
> > filter to a metal pipe, which disappeared over the transmission out
> > of sight.
> > The metal pipe was not held down by anything and moved about. When I
> > pulled (carefully!) at it, it readily came away in my hand.
>
> You have an automatic transmission, right?

Correct, yes.

[snip]

> I believe you have just disconnected the vacuum kickdown to the
> transmission. This is the doodad that lets the transmission know that
> you've tromped on the gas (by reduced vacuum) and causes it to shift into a
> lower gear for passing or otherwise accelerating. Without it, your
> transmission will think you're at wide open throttle all the time and will
> shift very late. This translates into the engine revving high and is not
> good to do on a regular basis.

This explains the different feel on the drive back! Felt nice, though.

> The bottom end is connected, via a short length of vacuum hose, to the
> vacuum modulator valve on the transmission. The top end connects, through
> another length of vacuum hose, to the vacuum tree on the manifold. I don't
> know about connections in between.

There aren't any. Hey, thanks for the info! Do you perhaps also know
approximately where the vacuum modulator valve on a 3-speed auto trans
is? An about location would be enough (didn't see anything when I
crawled about underneath).

> > Also, the connection from the left headers to the exhaust pipe has come
> > a bit loose (nasty rough sound), and I simply can't tighten the inner
> > of the two nuts holding it down - how on earth can I work a nut which is
> > *right next* to the exhaust pipe?
>
> Actually, that sounds to me like a blown doughnut gasket. As for
> tightening the nut, I use a ratchet, a couple of extensions, and a
[snip]

Well, yes, I have a *very* nice socket set, but I can't fit a socket
over the nut, as it actually touches the exhaust pipe. Similarily, I
can't use a wrench. Kinda frustrating...

Thanks for your help!

Ciao,
Klaus
---
"What, I need a *reason* for everything?" -- Calvin
"Should I or shouldn't I? Too late, I did!" -- Hobbes

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This read-only message was archived from a public mail list.
Mail From: Rick Larson (email redacted)

Klaus,
>
> Rehi!
>
> > > I'm the happy owner of a 1968 289 Mustang Coupe, and am having lots
> > > of fun with it. Seems that I'm turning up at work with black hands
> > > every morning
> >
> > Well, I do most of my tinkering at night--before showering--and there
> > are some good soaps for getting the grease off.
>
> I know. So do I. And then I do it again in the mornings

I just carry a gallon of water and some liquid soap in the trunk ;-).

rick
--
Rick Larson (email redacted)

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This read-only message was archived from a public mail list.
Mail From: HiHoo Silver (email redacted)


>Well, yes, I have a *very* nice socket set, but I can't fit a socket
>over the nut, as it actually touches the exhaust pipe. Similarily, I
>can't use a wrench. Kinda frustrating...
>

Try loosiening the other nut first. I had a heck of a time on my 64
1/2 289 too. I ended up using a thin walled, deep socket and a crows
foot. Good Luck!


HiHoo Silver !!
64 1/2 Coupe








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This read-only message was archived from a public mail list.
Mail From: Pacific Tomato - Mike Benishek (email redacted)


>(snip)Do you perhaps also know
>approximately where the vacuum modulator valve on a 3-speed auto trans
>is? An about location would be enough (didn't see anything when I
>crawled about underneath).


Klaus --
You should look on the passenger side near the right rear corner of the
trans fluid pan. Look for a round thing-a-ma-jig that has a vacuum hose
connection at the end. That's your vacuum modulator. The hose slips on to
the rear connector.

Mike Benishek
Ellenton, Florida
73 ragtop





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This read-only message was archived from a public mail list.
Mail From: Matt Moore (email redacted)


On Wed, 28 Apr 1999, Pacific Tomato - Mike Benishek wrote:

> >(snip)Do you perhaps also know
> >approximately where the vacuum modulator valve on a 3-speed auto trans
> >is? An about location would be enough (didn't see anything when I
> >crawled about underneath).
>
> You should look on the passenger side near the right rear corner of the
> trans fluid pan. Look for a round thing-a-ma-jig that has a vacuum hose
> connection at the end. That's your vacuum modulator. The hose slips on to
> the rear connector.

For what its worth I just replaced that hose on my 66 C4 last week. The
darn thing rotted away after only 33 years! (cheap crap). You may have to
remove the vacuum modulator in order to get the hose off or on. The
proximity to the lower trans mount makes it a tight fit (at least on mine).
If so, watch out for a short rod (less than 1 inch long) that will fall
out when you remove the modulator. Make sure you put it back in.

-----------------------------------------------------------------------
Matt Moore N3LPH Bucks County Community College
E-mail: (email redacted) Swamp Road Newtown PA 18940
-----------------------------------------------------------------------
Windows 95: A 32-bit patch for a 16-bit GUI shell running on top of an
8-bit operating system written for a 4-bit processor by a 2-bit company
who cannot stand 1 bit of competition.


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