ZF6 Drain/Fill plug torque - ZR-1 Net Registry Forums

Josh · 05-04-2014

What is the proper torque for the drain/fill plugs on the ZF6?
Is there a difference warm vs. cold?
Any sealant on the threads?

My 90 FSM says 26 ft-lb in one place, and 34 ft-lb in another!

My 93 FSM says 26 ft-lb in one plane, and 36 ft-lb in another!

Thanks

XfireZ51 · 05-04-2014

Quote:

Originally Posted by Josh

What is the proper torque for the drain/fill plugs on the ZF6?
Is there a difference warm vs. cold?
Any sealant on the threads?

My 90 FSM says 26 ft-lb in one place, and 34 ft-lb in another!

My 93 FSM says 26 ft-lb in one plane, and 36 ft-lb in another!

Thanks

Tight and then a nudge.

LantanaTX · 05-04-2014

One grunt

mike100 · 05-04-2014

tite enuf to not come loose!

it isn't load bearing, just a plug. You probably can't get a torque wrench in there anyhow unless you buy the German Hazet socket for that.

XfireZ51 · 05-04-2014

I use a 17mm Allen wrench

Josh · 05-04-2014

Thanks guys.

For the fill plug I used a 17mm allen socket with a wrench on the hex (exhaust in the way of using a ratchet). I suppose a crow's foot could be used with a torque wrench this way if you really wanted an exact torque, but like y'all said it's just a fill plug...

Dynomite · 05-05-2014

There are several opinions on this but I use a very light coat of Permatex 300 Form A Gasket on both surfaces of mating parts of all assemblies in contact with oil or water (water pump, oil pan and oil filter housing assemblies). I always use a thin coat of Permatex on the oil pan drain plug, transmission plugs, and differential drain plug also. This not only helps seal the plugs but also acts as a thread locker (A little less bolt torque with a good sealant). Tighten just tight enough to NOT LEAK.

Use of thread Lubricants, Loctite and Sealants

George Maz · 08-11-2016

https://www.amazon.com/Sunex-3646-8-.../dp/B006JVU1ZI
stubby set, good quality for the price

Paul Workman · 08-11-2016

Lots of ways to skin a cat, I recon...

I use Teflon (plumber's) tape on the threads of all (oil drain) plugs - acts as a sealant AND as an anti-seize agent.

Torque...IDK the ft#, but tighten (by fingers), and then as Dom says, a little tug on the socket wrench.

Never had a leak, never had a plug become seized (so far!).

Oh, and thanks, George, for that LINK! (I'm a sucker for having just the right tool for any job

.)

05-04-2014	#1
Josh Join Date: Oct 2013 Location: Magnolia, TX Posts: 10	ZF6 Drain/Fill plug torque What is the proper torque for the drain/fill plugs on the ZF6? Is there a difference warm vs. cold? Any sealant on the threads? My 90 FSM says 26 ft-lb in one place, and 34 ft-lb in another! My 93 FSM says 26 ft-lb in one plane, and 36 ft-lb in another! Thanks __________________ [B][I]Josh[/I][/B] 1990 ZR-1 #2875 [COLOR="Red"]Red[/COLOR]/Black 4.10s 1993 LT1 6-Speed [COLOR="DarkGreen"]Polo Green[/COLOR]/Beige [B]"A government big enough to give you everything you want, is big enough to take away everything you have."[/B]

05-04-2014	#3
LantanaTX Join Date: Mar 2014 Location: Lantana, TX Posts: 134	Re: ZF6 Drain/Fill plug torque One grunt __________________ [SIGPIC][/SIGPIC]1991 #0663

05-04-2014	#4
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: ZF6 Drain/Fill plug torque tite enuf to not come loose! it isn't load bearing, just a plug. You probably can't get a torque wrench in there anyhow unless you buy the German Hazet socket for that.

05-04-2014	#5
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,669	Re: ZF6 Drain/Fill plug torque I use a 17mm Allen wrench __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

05-04-2014	#6
Josh Join Date: Oct 2013 Location: Magnolia, TX Posts: 10	Re: ZF6 Drain/Fill plug torque Thanks guys. For the fill plug I used a 17mm allen socket with a wrench on the hex (exhaust in the way of using a ratchet). I suppose a crow's foot could be used with a torque wrench this way if you really wanted an exact torque, but like y'all said it's just a fill plug... __________________ [B][I]Josh[/I][/B] 1990 ZR-1 #2875 [COLOR="Red"]Red[/COLOR]/Black 4.10s 1993 LT1 6-Speed [COLOR="DarkGreen"]Polo Green[/COLOR]/Beige [B]"A government big enough to give you everything you want, is big enough to take away everything you have."[/B]

05-05-2014	#7
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,788	Re: ZF6 Drain/Fill plug torque There are several opinions on this but I use a very light coat of Permatex 300 Form A Gasket on both surfaces of mating parts of all assemblies in contact with oil or water (water pump, oil pan and oil filter housing assemblies). I always use a thin coat of Permatex on the oil pan drain plug, transmission plugs, and differential drain plug also. This not only helps seal the plugs but also acts as a thread locker (A little less bolt torque with a good sealant). Tighten just tight enough to NOT LEAK. Use of thread Lubricants, Loctite and Sealants __________________ Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 05-05-2014 at 03:43 AM.

08-11-2016	#9
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: ZF6 Drain/Fill plug torque Lots of ways to skin a cat, I recon... I use Teflon (plumber's) tape on the threads of all (oil drain) plugs - acts as a sealant AND as an anti-seize agent. Torque...IDK the ft#, but tighten (by fingers), and then as Dom says, a little tug on the socket wrench. Never had a leak, never had a plug become seized (so far!). Oh, and *thanks, George, for that LINK! (I'm a sucker for having just the right tool for any job.) __________________ Good carz, good food, good friendz = the best of timez!* 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry Last edited by Paul Workman; 08-11-2016 at 09:16 AM.