No Top End Oiling

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No Top End Oiling

Post  JohnSwenson on June 22nd 2015, 5:30 pm

A really good engine shop just rebuilt my A460 engine, installing new A460 heads and the first roller cam I have ever used. I was a die hard solid flat tappet guy. Installed the engine and went prime the oil system before firing up, and got only an occasional drop of oil out of a few of the push rods. have not pulled the manifold yet, but I read on another blog of a guy having the same problem with a new roller installation in a Windsor. Most of the guys on that forum thought it was probably the lifter oil hole being to high to match the lifter bore slot. Anyone ever have this problem, and if so what is the easiest fix?
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Re: No Top End Oiling

Post  Lem Evans on June 22nd 2015, 6:14 pm

Which lifters do you have?

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Re: No Top End Oiling

Post  Lem Evans on June 22nd 2015, 6:41 pm

On the right is Keith Fulp's Crower lifters with the nano groove from the oil band to the edge orfice.....as delivered from Crower.


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Re: No Top End Oiling

Post  Lem Evans on June 22nd 2015, 6:53 pm

This a picture of the Crane ultra pro lifter with a similar groove...hard to see....as delivered from Crane.


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Re: No Top End Oiling

Post  Wheelie58 on June 22nd 2015, 11:35 pm

.....and if your lifters do not have the factory groove, it is easy to make one. A small dremel tool makes it simple. Washing everything just takes some time.
Nice pics, Lem!
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Re: No Top End Oiling

Post  JohnSwenson on June 23rd 2015, 10:25 am

Thanks, Lem. Need to get this thing going and test those A-heads you sent me, and see if they out perform my old Eddy heads.
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Re: No Top End Oiling

Post  IDT-572 on June 23rd 2015, 2:22 pm

JohnSwenson wrote:Thanks, Lem.  Need to get this thing going and test those A-heads you sent me, and see if they out perform my old Eddy heads.

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Re: No Top End Oiling

Post  Curt on June 23rd 2015, 5:47 pm

If its the really good machine shop south of town, you'd better check and make sure the galley plugs are in. I'll guarantee you if it is that shop he didn't check tolerance between the lifter and the bore.
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Re: No Top End Oiling

Post  10.0 on June 24th 2015, 4:39 am

May try turning motor 1/8 turn at a time and prime oil system
If you get all rockers to oil[not all at same time]
it'll probly be fine.
I've done that in the past and got along just fine
The alternative is to notch lifters[start small if you do]

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