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Valve lifter oil return


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#1 platt-deutsch

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Posted 07 September 2008 - 06:22 PM

How does the oil get back to the pan from the lifter area.. Is there a drain hole in there? I have been loosing oil from that area.
1925 Dodge Bros. 14,000 miles
1930 Model A Ford Coupe

#2 simplyconnected

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Posted 07 September 2008 - 11:53 PM

It usually gets pumped up to the rocker arms from there, and yes, there are holes in the block, where oil drips down to the oil pan. Check your gaskets. They should all stop oil from leaking out.
"We've got to pause and ask ourselves: How much clean air do we need?"
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#3 dwollam

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Posted 08 September 2008 - 01:34 AM

Are we talking about a 25 DB 4 cyl. engine? If so, they are oiled by mist, later ones having hollow bolts or tubes so oil can be sucked up or splashed into the lifter area. Don't remember for sure if there are drain backs, but there are NO gaskets on the covers and yes they do leak a little (too much!). Also these are flatheads and do not have rocker arms. Nothing is actually "pumped" to the lifters on these.
1916 Model T Speedster
1920 DB Touring
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1926 GB 158" WB Truck
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