Roller lifters, Anyone tried them? |
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Roller lifters, Anyone tried them? |
r_towle |
Oct 26 2015, 09:31 PM
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#1
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Has anyone tried roller lifters in a type 4, or any flat motor?
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Bills914-4 |
Oct 31 2015, 12:34 PM
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#2
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Member Group: Members Posts: 310 Joined: 1-March 08 From: suburbs of Miami FL. Member No.: 8,762 Region Association: South East States |
Maybe I'm not seeing something but those roller lifters don't have the oil groove around
the body (to allow the oil up thru the push rods to rockers) and they don't look like they have any wear marks on the body dia. , maybe I'm wrong & this is not finished being set up (IMG:style_emoticons/default/confused24.gif) , plus they will need some form of locking the rotation . |
r_towle |
Oct 31 2015, 02:09 PM
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#3
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Maybe I'm not seeing something but those roller lifters don't have the oil groove around the body (to allow the oil up thru the push rods to rockers) and they don't look like they have any wear marks on the body dia. , maybe I'm wrong & this is not finished being set up (IMG:style_emoticons/default/confused24.gif) , plus they will need some form of locking the rotation . That is the part I don't believe is required, locking the rotation. What force would make them twist if they are in constant contact with the camshaft. If they are touching all the time they would be forced to stay square. For oil, it's possible there is a hole in the middle, not sure, no other pics. |
scott_in_nh |
Oct 31 2015, 03:39 PM
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#4
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Senior Member Group: Members Posts: 808 Joined: 10-December 10 From: Hampton, NH Member No.: 12,471 Region Association: North East States |
Maybe I'm not seeing something but those roller lifters don't have the oil groove around the body (to allow the oil up thru the push rods to rockers) and they don't look like they have any wear marks on the body dia. , maybe I'm wrong & this is not finished being set up (IMG:style_emoticons/default/confused24.gif) , plus they will need some form of locking the rotation . That is the part I don't believe is required, locking the rotation. What force would make them twist if they are in constant contact with the camshaft. If they are touching all the time they would be forced to stay square. For oil, it's possible there is a hole in the middle, not sure, no other pics. Rich my Buell has a sportster based motor with roller lifters/cams. It uses pins to keep the lifters inline and one of them failed. The lifter turned sideways, ground away on the cam and wheel and when it got hot enough to seize the lifter, the piston hit and bent the exhaust valve. You would need caster to have them point the right way by themselves. |
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