EV-27 woke her up
Stellar HDF Member
Joined: Jan 2015
Posts: 2,504
Likes: 150
From: ct
I think that truly depends on what lifters you use...
When you got to a more advanced camshaft, ramps lift etc. I really Don't think a standard lifter is gonna suffice. There's a reason S&S cost more.....
You know, don't expect a caddy when you bought a valiant.....
When you got to a more advanced camshaft, ramps lift etc. I really Don't think a standard lifter is gonna suffice. There's a reason S&S cost more.....
You know, don't expect a caddy when you bought a valiant.....
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,091
Likes: 7,611
From: Poolville
Slant Six was a great motor... Couldn't kill it however you could hear the lifters coming down the street. They first came out with solid lift. Noisy as hell but very reliable.....
Anyways think about what I said. If you preload your lifters to .140" and they remain quiet then the plunger is not leaking by, as well as the check ball bearing. Now If your lifter is quiet at .125" but noisy at .140" then the lifter is loosing it's pump and then that lifter would require more oil in it to keep it from collapsing (or a bigger cushion). It's very possible that some lifters have less clearance between the plunger and the lifter body not allowing the lifter to collapse hence the caddy or a valiant.. Because the tolerance is different between all the manufacturers out there some lifters will do better than others at keeping their fluid in them...
So preload will make a difference, if lifter "A" is a cheaper lifter and not manufactured to closer tolerances than lifter "B" which will cost more, then lifter "B" will be less likely to loose it's prime or pump and be quieter than lifter "A" under higher preloads...
Anyways think about what I said. If you preload your lifters to .140" and they remain quiet then the plunger is not leaking by, as well as the check ball bearing. Now If your lifter is quiet at .125" but noisy at .140" then the lifter is loosing it's pump and then that lifter would require more oil in it to keep it from collapsing (or a bigger cushion). It's very possible that some lifters have less clearance between the plunger and the lifter body not allowing the lifter to collapse hence the caddy or a valiant.. Because the tolerance is different between all the manufacturers out there some lifters will do better than others at keeping their fluid in them...
So preload will make a difference, if lifter "A" is a cheaper lifter and not manufactured to closer tolerances than lifter "B" which will cost more, then lifter "B" will be less likely to loose it's prime or pump and be quieter than lifter "A" under higher preloads...
Tourer
Joined: Jun 2013
Posts: 317
Likes: 48
From: Minnesota
You'll be rolling in green backs in no time😏!
Seasoned HDF Member
Joined: Apr 2010
Posts: 9,560
Likes: 7,907
From: Long Island, New York
I put the EV27 in my bike at approximately 30k miles with a Mikuni 42. Reused the stock push rods (removed rockers) and replaced lifters with new OEM from HD. Very quiet and hauls the mail for sure.
Anytime I think my bikes are making funny noises, I take the Flathead for a ride, everything else is Rolls Royce quiet after that.
Anytime I think my bikes are making funny noises, I take the Flathead for a ride, everything else is Rolls Royce quiet after that.
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1/2crazedbikr
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Aug 29, 2013 04:47 AM
