Oil 'pan' question>>> - ZR-1 Net Registry Forums

ZR1Vette · 01-17-2008

This weekend going to change out all the fluids so while I have car up on a lift wanted to check out everything... what is the torque spec and tightening sequence for the oil pan bolts?

Here is what I am using for fluids:
Amsoil AMO for engine with Bosch 3401 filter
Mobil 1 syn 75-90W with GM Limited Slip Additive for diff
BMW sourced Castrol TWS 10-60W for tranny
Power flush cooling system

Already changed out power steering fluid (GM spec) and brake fluid ...

I should be ready then and now to Virginia State emissions inspection

...

Michael

tomtom72 · 01-17-2008

oil pan bolts 20 lb/ft

I just kind of do the "X" thing from the center everytime I'm under there.

Aurora40 · 01-17-2008

Yeah, there is no tightening sequence in the FSM. FYI, the small bolts at the very front have a different torque value than the rest. Not that I could get a torque wrench on them anyways.

Thanks for the reminder on the power steering. I've changed all the other fluids, but haven't touched that one.

01-17-2008

The front bolts you can get only by removing the K rail support pieces, which isn't that big of a deal to remove. the front two bolts are 89 in lbs. The others are 20 ft lbs. Don't forget some are double nutted as they hold brackets and shields, so remove those to access the real bolt that holds the pan secure.

And there is no set torque pattern.

guinnessdood · 01-17-2008

Quote:

Originally Posted by Jeffvette

double nutted

Man oh man...it's been a long time since I experienced that!!!

tccrab · 01-17-2008

Quote:

Originally Posted by guinnessdood

Man oh man...it's been a long time since I experienced that!!!

lbszr · 01-17-2008

If you want to do a sequence there's one in the factory supplement 90-93. Think it's showing a 93 pan.

01-17-2008	#1
ZR1Vette Join Date: Dec 2007 Location: Reston, Virginia Posts: 939	Oil 'pan' question>>> This weekend going to change out all the fluids so while I have car up on a lift wanted to check out everything... what is the torque spec and tightening sequence for the oil pan bolts? Here is what I am using for fluids: Amsoil AMO for engine with Bosch 3401 filter Mobil 1 syn 75-90W with GM Limited Slip Additive for diff BMW sourced Castrol TWS 10-60W for tranny Power flush cooling system Already changed out power steering fluid (GM spec) and brake fluid ... I should be ready then and now to Virginia State emissions inspection ... Michael Last edited by ZR1Vette; 01-17-2008 at 07:21 AM.

01-17-2008	#2
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: Oil 'pan' question>>> oil pan bolts 20 lb/ft I just kind of do the "X" thing from the center everytime I'm under there. __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

01-17-2008	#3
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,713	Re: Oil 'pan' question>>> Yeah, there is no tightening sequence in the FSM. FYI, the small bolts at the very front have a different torque value than the rest. Not that I could get a torque wrench on them anyways. Thanks for the reminder on the power steering. I've changed all the other fluids, but haven't touched that one. __________________ Bob Saveland Former owner of #2517 [IMG]http://a.random-image.net/aurora40/vette.jpg[/img]

01-17-2008	#4
Jeffvette Guest Posts: n/a	Re: Oil 'pan' question>>> The front bolts you can get only by removing the K rail support pieces, which isn't that big of a deal to remove. the front two bolts are 89 in lbs. The others are 20 ft lbs. Don't forget some are double nutted as they hold brackets and shields, so remove those to access the real bolt that holds the pan secure. And there is no set torque pattern.

01-17-2008	#7
lbszr Join Date: Nov 2006 Location: dayton,ohio Posts: 425	Re: Oil 'pan' question>>> If you want to do a sequence there's one in the factory supplement 90-93. Think it's showing a 93 pan. __________________ [FONT=Comic Sans MS][COLOR=red]"I wanna go fast!!"[/COLOR][/FONT] [FONT=Comic Sans MS][COLOR=#ff0000]-- Ricky Bobby[/COLOR][/FONT]