MGB & GT Forum
Oil Filter Head Torque
Posted by Davew70mgb
Davew70mgb
Dave Windisch
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May 29, 2015 07:22 PM
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May 29, 2015 07:54 PM
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May 29, 2015 08:14 PM
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Just tight enough to stop it from leaking!
The housing is made of aluminum, and with a big bolt head like that it is tempting to overtorque it - possibly breaking the casting. The good news is that there is some give in the rubber which provides protection against this.
My advice is to tighten it a little beyond snug, then observe if it leaks. If so, tighten a little more and recheck.
Where I've had leakage is on the bolt head. Make sure you have a copper or plastic washer underneath. I found a plastic washer intended for an oil pan drain plug that was the right size. It sealed better than the copper for me.
Terry Ingoldsby
terry.ingoldsby@DCExperts.com
The housing is made of aluminum, and with a big bolt head like that it is tempting to overtorque it - possibly breaking the casting. The good news is that there is some give in the rubber which provides protection against this.
My advice is to tighten it a little beyond snug, then observe if it leaks. If so, tighten a little more and recheck.
Where I've had leakage is on the bolt head. Make sure you have a copper or plastic washer underneath. I found a plastic washer intended for an oil pan drain plug that was the right size. It sealed better than the copper for me.
Terry Ingoldsby
terry.ingoldsby@DCExperts.com
Davew70mgb
Dave Windisch
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May 29, 2015 08:19 PM
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I saw that but it looked to me like 15 ft lb was for the center bolt of the canister. The sheet I have says "oil filter center bolt" Also notes that it's for 18G/18GA (early CBB). My engine is 18 GH and has a spin on filter. I need the spec for the filter head, the adapter part, to the block.
Davew70mgb
Dave Windisch
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May 29, 2015 08:23 PM
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ohlord
Rob C
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1957 Land Rover Series I "EYEYIYI"
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May 29, 2015 09:47 PM
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12ft lb your wrench isn't that accurate so for a bolt that seals a gasket rely on "Mechanic tight" offer it up flush and give it enough to be just snug.
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Home of Project "INCARN8'
1957 Series 1 Land Rover electric VEHICLE CONVERSION
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VIETNAM 1969-1972
May 29, 2015 09:56 PM
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In reply to # 2999631 by ingoldsb
Just tight enough to stop it from leaking!
The housing is made of aluminum, and with a big bolt head like that it is tempting to overtorque it - possibly breaking the casting. The good news is that there is some give in the rubber which provides protection against this.
My advice is to tighten it a little beyond snug, then observe if it leaks. If so, tighten a little more and recheck.
Where I've had leakage is on the bolt head. Make sure you have a copper or plastic washer underneath. I found a plastic washer intended for an oil pan drain plug that was the right size. It sealed better than the copper for me.
The housing is made of aluminum, and with a big bolt head like that it is tempting to overtorque it - possibly breaking the casting. The good news is that there is some give in the rubber which provides protection against this.
My advice is to tighten it a little beyond snug, then observe if it leaks. If so, tighten a little more and recheck.
Where I've had leakage is on the bolt head. Make sure you have a copper or plastic washer underneath. I found a plastic washer intended for an oil pan drain plug that was the right size. It sealed better than the copper for me.
The tip about using a plastic washer rather than the copper one is sound advice. I chased that leak/drip for a while until trying the plastic. It worked!
Speedracer
Hap Waldrop
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May 30, 2015 05:37 AM
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Yep, just GAS specs (good and snug) as mentioned any attempt to over torque this bolt could result in damage to the filter housing. To add to that a 1/2" torque wrench would be useless at such a low torque value, anything less then 25 foot pounds, you would be well advised to put your torque wrench back in the tool box
Hap Waldrop
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May 30, 2015 05:42 AM
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I started a recent thread on a similar topic for my 78. My issue was how to get the old gasket out of the engine block (solved with lots of spraying brake cleaner on the petrified gasket remains and waiting a few hours). In my thread someone posted the torque - 12 to 15 I think he said - as a related helpful hint.
Now my issue is a drip every five seconds from the Whitworth size nut where you had to take the rubber hose off the filter adapter before removing it.
Now my issue is a drip every five seconds from the Whitworth size nut where you had to take the rubber hose off the filter adapter before removing it.
dickmoritz
Dick Moritz
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May 30, 2015 08:04 AM
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In reply to # 2999845 by dbster
Now my issue is a drip every five seconds from the Whitworth size nut where you had to take the rubber hose off the filter adapter before removing it.
Now my issue is a drip every five seconds from the Whitworth size nut where you had to take the rubber hose off the filter adapter before removing it.
Try loosening the fitting and rotating the hose end fitting a little so that it is square to the oil filter adapter. Sometimes that will help the ball-shaped fitting end seat a little better, and may also dislodge any tiny bit of debris that may be trapped between the hose fitting and the oil filter adapter.
Dick
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dickmoritz
Dick Moritz
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May 30, 2015 08:07 AM
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Dave,
Be absolutely certain that there's not an old square-cut o-ring hiding in the recess where the oil filter adapter mounts. These tend to petrify over time, and can easily be overlooked when R&R-ing the oil filter adapter. You can use a punch or awl and a MFH tp dig out old o-rings, and make sure you see shiny metal when you're done...
Dick
Errabundi Saepe, Semper Certi
(Often wrong, but always certain)
Be absolutely certain that there's not an old square-cut o-ring hiding in the recess where the oil filter adapter mounts. These tend to petrify over time, and can easily be overlooked when R&R-ing the oil filter adapter. You can use a punch or awl and a MFH tp dig out old o-rings, and make sure you see shiny metal when you're done...
Dick
Errabundi Saepe, Semper Certi
(Often wrong, but always certain)
Davew70mgb
Dave Windisch
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Topic Creator (OP)
May 30, 2015 10:23 AM
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May 31, 2015 01:51 AM
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Speedracer
Hap Waldrop
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May 31, 2015 06:08 AM
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Yep, the old o rings get petrified, I use a pick to get them out, a thin bladed knife would work too.
Hap Waldrop
Acme Speed Shop
864-370-3000
Website: www.acmespeedshop.com
hapwaldrop@acmespeedshop.com
Hap Waldrop
Acme Speed Shop
864-370-3000
Website: www.acmespeedshop.com
hapwaldrop@acmespeedshop.com
Member Services:
MG/ Triumph Performance Street Engines -
Cylinder Head Porting for street performance and race -
DIY Engine Rebuild Kits With Free Tech Advice -
VTO alloy wheels for British Sports Cars, and others
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