Lifter pumping up
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Road Master
Joined: Aug 2007
Posts: 942
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From: Grew up in Texas, moved to AZ
Lifter pumping up
Guys, my new stock 80" Evo engine has Mid-west lifters with stock push rods and Woods-6 cam. If I let her sit for a week or on a long days ride with several stops, when I go to start her, the front exhaust lifter is making a racket (valve train noise) for about a minute until it is pumped up again. Is this going to hurt anything? Mr. Too lazy to fix this right now.
Stellar HDF Member
Joined: Jul 2011
Posts: 2,583
Likes: 115
From: Boston, MA
I'll sound like a broken record on this, but....
I spoke with Mr. Bob Wood over the phone. He said that yes the W6 is considered a drop-in cam but it is not truly. He said to me to use adjustable pushrods or NOT to call him about a noisy drivetrain. I was changing base gaskets so I upgraded an ev23 that was in there already. The W6 is certainly noisy but what it is not is a simple drop-in.
Call him directly, he'll answer the phone!
I spoke with Mr. Bob Wood over the phone. He said that yes the W6 is considered a drop-in cam but it is not truly. He said to me to use adjustable pushrods or NOT to call him about a noisy drivetrain. I was changing base gaskets so I upgraded an ev23 that was in there already. The W6 is certainly noisy but what it is not is a simple drop-in.
Call him directly, he'll answer the phone!
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,024
Likes: 7,549
From: Poolville
Lifters will bleed down after a while. That's why it's always a good thing to let it warm up... install adjustable pushrods as Tee&Vee suggested and set the preload to .130"-.140"... And on an all stock Evo the W6 is not a great choice. That cam prefers 10.0:1 comp... 8.5:1 will make it a real dog on bottom..
One other thing, if it starts to bleed down to quickly you might want to consider S&S lifters..
One other thing, if it starts to bleed down to quickly you might want to consider S&S lifters..
Last edited by 98hotrodfatboy; Sep 16, 2019 at 07:01 PM.
Stellar HDF Member
Joined: Jul 2011
Posts: 2,583
Likes: 115
From: Boston, MA
Lifters will bleed down after a while. That's why it's always a good thing to let it warm up... install adjustable pushrods as Tee&Vee suggested and set the preload to .130"-.140"... And on an all stock Evo the W6 is not a great choice. That cam prefers 10.0:1 comp... 8.5:1 will make it a real dog on bottom..
One other thing, if it starts to bleed down to quickly you might want to consider S&S lifters..
One other thing, if it starts to bleed down to quickly you might want to consider S&S lifters..
I thought Harley fixed the quick bleed down with the "B" Lifters a few years back.??? I've been wrong before...
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