Cold startup rattle
Road Warrior
Joined: May 2007
Posts: 1,434
Likes: 384
From: Arkansastan
The Lucas will do nothing for the engine.
I do find it odd to be normal. The only time Ive ever heard a lifter rattle is when the wife’s 103 sat for two unridden months, and then, only a 5-10 second period. I’ve had 6 Harley’s, from evo to M8, only the 103 rattled. This with a variety of stock and aftermarket lifters between the engines. Just my experience.
I do find it odd to be normal. The only time Ive ever heard a lifter rattle is when the wife’s 103 sat for two unridden months, and then, only a 5-10 second period. I’ve had 6 Harley’s, from evo to M8, only the 103 rattled. This with a variety of stock and aftermarket lifters between the engines. Just my experience.
Last edited by propflux01; Nov 17, 2022 at 02:59 PM.
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,672
Likes: 11,459
From: State of Confusion
and if it did it would just be compensating for a weakness elsewhere..if using the prescribed fluids then they contain everything the engine needs already.....as HD even states about the use of additives being unnecessary ..'blended with an additive package already included. Other additives are not needed and may not be compatible and in fact, oil additives may actually dilute the correct formulation' ......would be like adding sugar to a can of Coca Cola to try and 'improve' it
Seasoned HDF Member
Joined: Oct 2010
Posts: 5,297
Likes: 2,392
From: Florida
and if it did it would just be compensating for a weakness elsewhere..if using the prescribed fluids then they contain everything the engine needs already.....as HD even states about the use of additives being unnecessary ..'blended with an additive package already included. Other additives are not needed and may not be compatible and in fact, oil additives may actually dilute the correct formulation' ......would be like adding sugar to a can of Coca Cola to try and 'improve' it
Tourer
Joined: Jun 2018
Posts: 308
Likes: 127
From: ON Canada
Are you even reading the responses? Consensus is that lifter rattle that goes quiet within 2 minutes is normal on a cold start. Personally my M8 is less than 10 seconds, OEM and also now the Wood Knight Prowler lifters in the StageII. All things mechanical like Lifters do go bad, so have the pushrods and lifters checked if you’re still confused/concerned…🤷
Road Warrior
Joined: May 2007
Posts: 1,434
Likes: 384
From: Arkansastan
the MOCO and a few here say it’s normal. I don’t think it is. I sure don’t hear all the ford/Chevy/etc V8 lifters clacking for ten seconds when they start up, but that’s just me. Personally, if it were a recurring problem, I would just replace them and be done with it. Especially with the reputation of “C” lifters.
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Seasoned HDF Member
Joined: Oct 2010
Posts: 5,297
Likes: 2,392
From: Florida
Are you even reading the responses? Consensus is that lifter rattle that goes quiet within 2 minutes is normal on a cold start. Personally my M8 is less than 10 seconds, OEM and also now the Wood Knight Prowler lifters in the StageII. All things mechanical like Lifters do go bad, so have the pushrods and lifters checked if youre still confused/concerned
🤷
Grand HDF Member
Joined: May 2010
Posts: 3,599
Likes: 5,175
From: SWMO
and if it did it would just be compensating for a weakness elsewhere..if using the prescribed fluids then they contain everything the engine needs already.....as HD even states about the use of additives being unnecessary ..'blended with an additive package already included. Other additives are not needed and may not be compatible and in fact, oil additives may actually dilute the correct formulation' ......would be like adding sugar to a can of Coca Cola to try and 'improve' it