C4 speedo cable leaking

fastsvo · 09-09-2001, 12:25 PM

Just to double check before I go under the car...these things have an O-ring to them right? I know it's not loose. Any sealing tips? THanks.

Rev · 09-09-2001, 03:01 PM

I think you're right about the O-ring seal. That clip just retains the cable and speedo gear in the tranny. Don't over tighten that little bolt either and break it off like I did. It was a b!tch to get out with an easy-out under the car.

Rev

fastsvo · 09-09-2001, 04:11 PM

What about those pan bolts? I have a slight leak from the bolts and the gasket. Could I put teflon tape on them?

Rev · 09-09-2001, 05:18 PM

Those are other ones that you don't want to over tighten as they can break off easily. Sometimes it looks like those are leaking when they may not be. The shifter shaft I think has an O-ring and maybe the downshift shaft as well. Also there's an O-ring where the dip stick tube enters the tranny case. All these are potential leak sites. Then there's also the cooling lines that come and go to the radiator. It's very difficult to determine the actual leak origin. I've spent hours under there and still not found where these pesky leaks come from.

Rev

------------------
'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.

[This message has been edited by Rev (edited 09-09-2001).]

PKRWUD · 09-09-2001, 08:02 PM

If the pan is leaking, tightening the bolts probably won't do any good, nor will teflon. But, as long as you're there, why not pull the pan and change the filter? With the pan off, check it for straight edges (people tightening the bolts trying to stop leaks often bend the pan, causing the leaks to get worse), and correct as necessary. Install a new gasket and refill. Just don't over tighten the pan bolts!

Take care
~Chris

------------------
Retired Moderator
MustangNet

My site: JimPorterRacing

RACECAR spelled backwards is RACECAR

HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!

gp001 · 09-09-2001, 09:28 PM

You might want to check where the metal housing is crimped onto the outer tubing. I had one leak there. It took me forever to actually find it.

------------------
347 (Coast High short block), 279/284, TFS TW heads, Stealth, 750 Holley, Flowtech hdrs, Dr. Gas X, 2 Chmbr Flowmaster, MSD 6AL-Dist.& SS coil, March serpentine pulley system, Art Carr C-4 (Soon to be a Richmond 6 spd), Currie 9" w/3.50, alum Drv Shft, susp mods, Total Control subframes & tower braces, Trans Am Racing power dual master, 4 wheel disc, 17x8 Torqthrust II's
Something up my sleeve

In a 66 coupe

09-09-2001, 09:56 PM

being it's the speedo cable it , is probably a o- ring .if someome used plyer's to tighten it & cut the rubber ck that first good , luck,

------------------

[This message has been edited by mustang marty gt (edited 09-09-2001).]

09-09-2001, 12:25 PM	#1
fastsvo Registered Member Join Date: Jul 1999 Posts: 44	C4 speedo cable leaking Just to double check before I go under the car...these things have an O-ring to them right? I know it's not loose. Any sealing tips? THanks.

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09-09-2001, 03:01 PM	#2
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	I think you're right about the O-ring seal. That clip just retains the cable and speedo gear in the tranny. Don't over tighten that little bolt either and break it off like I did. It was a b!tch to get out with an easy-out under the car. Rev

09-09-2001, 04:11 PM	#3
fastsvo Registered Member Join Date: Jul 1999 Posts: 44	What about those pan bolts? I have a slight leak from the bolts and the gasket. Could I put teflon tape on them?

09-09-2001, 05:18 PM	#4
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Those are other ones that you don't want to over tighten as they can break off easily. Sometimes it looks like those are leaking when they may not be. The shifter shaft I think has an O-ring and maybe the downshift shaft as well. Also there's an O-ring where the dip stick tube enters the tranny case. All these are potential leak sites. Then there's also the cooling lines that come and go to the radiator. It's very difficult to determine the actual leak origin. I've spent hours under there and still not found where these pesky leaks come from. Rev ------------------ '66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph 1/4 mi. [This message has been edited by Rev (edited 09-09-2001).]

09-09-2001, 08:02 PM	#5
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	If the pan is leaking, tightening the bolts probably won't do any good, nor will teflon. But, as long as you're there, why not pull the pan and change the filter? With the pan off, check it for straight edges (people tightening the bolts trying to stop leaks often bend the pan, causing the leaks to get worse), and correct as necessary. Install a new gasket and refill. Just don't over tighten the pan bolts! Take care ~Chris ------------------ Retired Moderator MustangNet My site: JimPorterRacing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!

09-09-2001, 09:28 PM	#6
gp001 Registered Member Join Date: Nov 2000 Location: So. Cal. Posts: 244	You might want to check where the metal housing is crimped onto the outer tubing. I had one leak there. It took me forever to actually find it. ------------------ 347 (Coast High short block), 279/284, TFS TW heads, Stealth, 750 Holley, Flowtech hdrs, Dr. Gas X, 2 Chmbr Flowmaster, MSD 6AL-Dist.& SS coil, March serpentine pulley system, Art Carr C-4 (Soon to be a Richmond 6 spd), Currie 9" w/3.50, alum Drv Shft, susp mods, Total Control subframes & tower braces, Trans Am Racing power dual master, 4 wheel disc, 17x8 Torqthrust II's Something up my sleeve In a 66 coupe

09-09-2001, 09:56 PM	#7
mustang marty gt Guest Posts: n/a	being it's the speedo cable it , is probably a o- ring .if someome used plyer's to tighten it & cut the rubber ck that first good , luck, ------------------ [This message has been edited by mustang marty gt (edited 09-09-2001).]