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EL engine block oil return valves 


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 Post subject: EL engine block oil return valves
Posted: Sat Dec 15, 2018 12:51 pm 
Fordmods Newbie

Age: 50

Posts: 5

Joined: 11th Dec 2018

Ride: ford

Location: melbourne
VIC, Australia

Hi all just a question in relation to the two what looks like oil return one way check valves in my EL block. Do people normally remove them or keep in place i noticed my EB block doesn't have them.
They are located in the oil feed holes to the cylinder head at tghe top of block.

 Post subject: Re: EL engine block oil return valves
Posted: Tue Dec 18, 2018 12:45 pm 
Getting Side Ways
User avatar

Age: 61

Posts: 869

Joined: 12th Aug 2007

Gallery: 22 images

Ride: AU2 XR8 ute & 91 EA bitsa

Location: Melbourne
VIC, Australia

The plugs in the oil return holes were installed to increase oil pressure for the hydraulic lifters. On startup, the lifters often rattle. Blocking them off, will reduce that (especially in cold weather). The engine reconditioner, that I use, gave me 3 to install during my engine rebuild.



AU2 XR8 with Raptor VL, ported Yella Terra GT40P heads, Scorpion 1.6 RRs, XE264HR-14 Comp Cam, ceramic coated Hurricane Headers, 60lb injectors, Walbro 255, 200cfi cats, 3" exhaust & Snow Performance water methanol injection

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