Engine Knock
Thread Starter
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Novice
Joined: Sep 2021
Posts: 16
Likes: 1
From: Wisconsin
Engine Knock
Need some help guys I have a 2005 road king 88 with 20000 miles on her I installed new cam shafts cam plate high flow oil pump .
Now I decided to put the S/E 95 big bore kit in got it all together changed oil ran the bike once up to operating temp I get A knock
sounds like its in the rear jug? Only when warm if I throttle the bike the noise goes away Im at a loss any ideas? Please help!!
oh yeah compression is good motor runs perfect !
Now I decided to put the S/E 95 big bore kit in got it all together changed oil ran the bike once up to operating temp I get A knock
sounds like its in the rear jug? Only when warm if I throttle the bike the noise goes away Im at a loss any ideas? Please help!!
oh yeah compression is good motor runs perfect !
Grand HDF Member
Joined: Sep 2017
Posts: 4,359
Likes: 1,219
From: Dubuque, IA
Need more info. What cams, lifters, push rods and adjustment if applicable, etc.
You say you did a 95 bore and took it for a ride...I assume you did heat cycles and break in miles? Or broke in on a dyno first? A video of it running making the noise would sure help.
You say you did a 95 bore and took it for a ride...I assume you did heat cycles and break in miles? Or broke in on a dyno first? A video of it running making the noise would sure help.
Thread Starter
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Novice
Joined: Sep 2021
Posts: 16
Likes: 1
From: Wisconsin
It has 203 cams adjustable push rods S/E lifters ! I put the motor back together and started it on the rack as soon as it got warm is when I heard the new sound . Bike never left the rack I shut it down let it cool and restarted once back to operating temp the knock came back I can try and post a video when I get back to the shop
Thread Starter
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Novice
Joined: Sep 2021
Posts: 16
Likes: 1
From: Wisconsin
Bike still on rack with the same noise once it gets warm!! I did a comp test both jugs at 175 I just can’t figure it out I even changed the lifters just to be sure re did the adjustable push rods 4 times has perfect oil pressure runs great until hot ! I do not know how to post the sound clip I took of it running please help
Thread Starter
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Novice
Joined: Sep 2021
Posts: 16
Likes: 1
From: Wisconsin
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Seasoned HDF Member
Joined: Dec 2005
Posts: 19,997
Likes: 8,065
From: poway
Pushrod adjustment.
Wrong size head gasket.
O ring on head gasket oil passage. Should not have one.
Wrong size head gasket.
O ring on head gasket oil passage. Should not have one.
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Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
What was your piston to cylinder wall clearance..? according to the video it sounds like a tight piston when hot.. Check the cylinder wall for scuffing.. You can purchase a bore scope pretty cheap today...