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Oil Filter Bolt Torque
Posted by: jsvaldez05 ()
Date: November 06, 2018 07:18AM

Hey everyone - I'm new to the forum here and looking for a little help. I recently changed the oil for the first time on my newly acquired Corvair (1965 500 Coupe) and attempted to torque the bolt on the filter to the shop manual specifications of 15-20 ft. lbs., only I seem to have stripped the threads in the filter before getting to that torque spec.

I'm going to attempt to change the oil filter again today, but was wondering if anyone had a good torque spec. for that bolt? I've searched the forum and didn't find anything with an actual number, just many of the typical "1/4 - 1/2 turn past contact" suggestions. I'm a little particular, so specific numbers are very appreciated! smiling smiley

Also, any great ideas on how to get the old, stripped filter off?

Thanks!!

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Re: Oil Filter Bolt Torque
Posted by: MattNall ()
Date: November 06, 2018 07:24AM

Welcome to the CCF!

Hold the filter and keep it from turning as you push down...while backing the bolt out..





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Oil Filter Bolt Torque
Posted by: jsvaldez05 ()
Date: November 06, 2018 07:51AM

Thanks Matt! I figured that would be the best way to go about it - hopefully the bolt works its way out easily!!

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Re: Oil Filter Bolt Torque
Posted by: Timothy Shortle ()
Date: November 06, 2018 07:54AM

What kind of filter are you using? I am sure I always go over the suggested torque value. I don't use a torque wrench.
Just a 6 point socket and a 3/8 ratchet. I always make sure the old seal is not still there.

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Re: Oil Filter Bolt Torque
Posted by: jsvaldez05 ()
Date: November 06, 2018 08:17AM

The first time I used an AC Delco that came with the car when I bought it. No idea how old the filter was, but it was brand new in the box...although the box did look a little aged.

I ordered a new Wix filter from O'Reilly's for the second go round. I will certainly check to ensure the old seal doesn't stay stuck on the housing.

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Re: Oil Filter Bolt Torque
Posted by: cnicol ()
Date: November 06, 2018 08:27AM

15-20 foot-pounds? That seems really high. Where did you find that number? I just cruised the manual and didn't see a number. Most oil filters are tightened by feel. "Just a little past snug"

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later
2+2 gnatsuM 5691

+17 Tons of parts

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Re: Oil Filter Bolt Torque
Posted by: jsvaldez05 ()
Date: November 06, 2018 08:30AM

Under Engine Component Torques, 5th page from the end of the book on the backside of the page, halfway down.

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Re: Oil Filter Bolt Torque
Posted by: American Mel ()
Date: November 06, 2018 08:34AM

WoW!
In all these years, I have NEVER even thought to "torque" an oil filter!
As Craig said, "Just a little past snug" has always been perfect for a No-Leak filter change on my car.

.
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

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Re: Oil Filter Bolt Torque
Posted by: Wagon Master ()
Date: November 06, 2018 08:39AM

For a better picture of what happened....what tool were you tightening the bolt with when it stripped?

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Re: Oil Filter Bolt Torque
Posted by: cnicol ()
Date: November 06, 2018 08:43AM

OK, I see the spec now. I've been looking at that page for many, many years and NEVER thought to look for an oil filter bolt torque since they're usually tightened by feel.

The late model oil filter torque value is likely an error. (There are several on that page)

In the '61 base manual (similar "large" manual for early models), the oil filter bolt torque is listed at 45-65 INCH-pounds, which converts to 3.75 to 5.4 ft-pounds.

This lower value seems correct to me.

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later
2+2 gnatsuM 5691

+17 Tons of parts

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Re: Oil Filter Bolt Torque
Posted by: jsvaldez05 ()
Date: November 06, 2018 08:54AM

I was using a 1/2" drive torque wrench. I was concerned that this torque spec. may have been an error. 45-65 in. lbs. sounds much more reasonable - I will give that a try...thanks for the help!!

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Re: Oil Filter Bolt Torque
Posted by: RobertC ()
Date: November 06, 2018 11:37AM

As Craig stated, most do it by "feel".

When I first started doing oil changes, I used a torque wrench (3/8" drive) and torqued to 15 ft lbs.

Now, I just do "pretty snug" plus a quarter turn.

You do need to check the threads of the oil filter bolt to see if the threads are wearing down. After many, many oil changes, you can strip the threads on the oil filter bolt.

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Re: Oil Filter Bolt Torque
Posted by: MonzaJPD61 ()
Date: November 07, 2018 06:33PM

1961 Shop Manual below Fig. 2-2
9-15 ft.lbs.

B'ham, AL
1961 Monza coupe 98hp, 4spd
1963 Monza coupe 102hp, pg
Vulcan Corvair Enthusiasts

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Re: Oil Filter Bolt Torque
Posted by: MonzaJPD61 ()
Date: November 07, 2018 06:47PM

1961 Shop Manual
1. Section 12-8 Torque Specifications
oil filter to adapter 9-15 ft lbs

B'ham, AL
1961 Monza coupe 98hp, 4spd
1963 Monza coupe 102hp, pg
Vulcan Corvair Enthusiasts

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Re: Oil Filter Bolt Torque
Posted by: Lane66m ()
Date: November 07, 2018 07:04PM

1965 Shop manual, Specifications page 4

7/16-20 Crankcase LH. to RH 50-55 ft. lbs.
Oil Filter 15-20 ft. lbs.


Looks like someone writing the manual was using the steel bolt size to determine the torque, instead of the oil filter manufacturers recommendation for the torque.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp





Edited 1 time(s). Last edit at 11/07/2018 07:06PM by Lane66m.

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Re: Oil Filter Bolt Torque
Posted by: MattNall ()
Date: November 07, 2018 07:22PM

5/16" fine is not 50-55...


Grade 8 plated is 20 ft. lb.

Surely the bolt is grade 5?





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Oil Filter Bolt Torque
Posted by: Lane66m ()
Date: November 07, 2018 07:23PM

7/16 bolt not 5/16, Matt.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


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Re: Oil Filter Bolt Torque
Posted by: joelsplace ()
Date: November 07, 2018 07:31PM

You could do it like a spin on. Contact +3/4 to 1 turn. I do it by feel also.

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Re: Oil Filter Bolt Torque
Posted by: 66vairman ()
Date: November 07, 2018 07:41PM

Robert C made a good point about worn bolt threads.

The other issue I run into is OUT OF CALIBRATION click torque wrenches. A fellow in our club broke off and stripped out a few engine bolts with a torque wrench. I asked him if he set the wrench to ZERO after each use. No he had left it set very high and stored it that way for a couple of months. I checked it and it was way off.

For lower torque values the good ol beam and pointer torque wrench is a good choice.

The WIX is a good filter.

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Re: Oil Filter Bolt Torque
Posted by: joelsplace ()
Date: November 07, 2018 07:43PM

I doubt too many 1/2" torque wrenches can handle that low a setting very accurately.

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