Engine Knock
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Novice
Joined: Sep 2021
Posts: 16
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From: Wisconsin
I’ve checked the push rods several times before tearing it down because I thought the same thing ! Now that it is a part I am going to mic every thing and see what clearances are will post back thanks for all the input
Thread Starter
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Novice
Joined: Sep 2021
Posts: 16
Likes: 1
From: Wisconsin
I’ll start from the beginning early summer I replaced everything in the cam chest with all screaming eagle parts 203 cams rode all summer no issues this winter I did the 95 inch jugs and pistons that’s when the noise started ! I replaced the lifters before the tear down once motor got hot noise came back now I’m back to square one cam chest out bike completely tore down! I see no damage anywhere except the scoring in cylinders and ring gaps lining up not sure where to go from here
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Joined: Mar 2010
Posts: 21,014
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From: Poolville
I’ll start from the beginning early summer I replaced everything in the cam chest with all screaming eagle parts 203 cams rode all summer no issues this winter I did the 95 inch jugs and pistons that’s when the noise started ! I replaced the lifters before the tear down once motor got hot noise came back now I’m back to square one cam chest out bike completely tore down! I see no damage anywhere except the scoring in cylinders and ring gaps lining up not sure where to go from here
Like Max said in post #4 then later in the thread, are you sure you had the pistons in correctly, meaning the arrows point to the intake side. If thats the case then the arrows should be pointing to the center of the engine/intake manifold. I would guess because the intake valve is of larger diameter than exhaust, that intake valve would then be hitting the outside edge of the exhaust valve relief if the piston was installed backwards. Not to be a jerk but did you really check them?
Ride safe!
Ride safe!
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Joined: May 2017
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From: NorCal
OP says both arrows point forward.
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From: poway
It's not.. They both need to point forward as the reason for the arrow is to ensure piston offset not valve relief.
From a 2001 SM.
4. See Figure 3-29. Place piston over rod end so that the
arrow stamped at the top of the piston points toward the
front of the engine.
It's not.. They both need to point forward as the reason for the arrow is to ensure piston offset not valve relief.
From a 2001 SM.
4. See Figure 3-29. Place piston over rod end so that the
arrow stamped at the top of the piston points toward the
front of the engine.
From a 2001 SM.
4. See Figure 3-29. Place piston over rod end so that the
arrow stamped at the top of the piston points toward the
front of the engine.
Ride safe!