Aluminum Oil Pan Questions ?

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BearKiller
Posts: 180
Joined: Wed Nov 07, 2012 12:27 am
First and Last Name: George Riley
Location: Poverty Springs KY 2018 Wettest State in the Nation

Aluminum Oil Pan Questions ?

Post by BearKiller »

As per the picture:
Oil Drain Plug_Torque Values.png
Oil Drain Plug_Torque Values.png (23.47 KiB) Viewed 1926 times
I am assuming the size column is the bolt diameter; am I correct ?

Also, for the oil-pan torque values, it lists Sheet-metal at 200 inch-lbs, Cast Iron at 35 Foot-lbs, but the Aluminum section is blank.
What is the torque value for an aluminum oil-pan ?

Thanks for reading and all help is appreciated.

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SWilliams
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First and Last Name: Steve Williams
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Re: Aluminum Oil Pan Questions ?

Post by SWilliams »

Hmm, never use a torque wrench on a drain plug yet. Just snug it down so it doesn't leak.
Owner of an 1863, 2263 (1863 W 22hp engine!) 2084 and a 2 - 2284s.


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BearKiller
Posts: 180
Joined: Wed Nov 07, 2012 12:27 am
First and Last Name: George Riley
Location: Poverty Springs KY 2018 Wettest State in the Nation

Re: Aluminum Oil Pan Questions ?

Post by BearKiller »

I have the thick aluminum oil-pan.
It says 35 ft-lbs for cast-iron pan on cast-iron block; this is aluminum pan screwing into cast-iron block.
With new lock-washers on the Grade-5 3/8x16 bolts, I made a best-guess and torqued them to 372 in-lbs; a bit under the 420 in-lbs (35 ft-lbs)
When I removed the pan bolts, I used a 1/4" ratchet, about 5-1/2" long, and easily backed them out with one hand.
Replacing them with a somewhat longer 3/8" torque wrench, the last few increments up to 372 in-lbs were lifting the engine off the bench and I had to brace the wrench against a block so I could use one hand on the wrench and hold the engine down with the other.
I know they are quite a bit tighter than they had been; so, hopefully, they will be good for a long time.

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