HarleyTechTalk

Technical Forums => Twin Cam => Topic started by: aalsalem on April 20, 2021, 11:54:54 PM

Title: squeaky scratching sound in the engine
Post by: aalsalem on April 20, 2021, 11:54:54 PM
Hi, i have a Dyna low rider S with the 110Ci engine and am getting a squeaky scratching sound in the engine, it doesn't necessarily increase when I increase the RPMs it's sort of stays constant.
Now I've took off the rocker covers thought maybe I'd have a broken and rocker arm but everything seems to be well.

so before I start tearing the engine down the engine, you guys have any ideas ?

I've checked there is nothing loose on the bike so I've checked the exhaust parts etc. .... :scratch:

thanks for any help
Title: Re: squeaky scratching sound in the engine
Post by: Don D on April 21, 2021, 02:00:46 AM
You have likely lost a lifter roller.
Title: Re: squeaky scratching sound in the engine
Post by: Pete_Vit on April 21, 2021, 07:26:45 AM
check - cut open the oil filter see if there's any metal in the filter and what color, that should tell you if there's a bearing issue or something else.
on my Evo, I had a similar sound, turned out to be cam bearings - best of luck
Title: Re: squeaky scratching sound in the engine
Post by: aalsalem on April 22, 2021, 02:24:52 AM
Quote from: HD Street Performance on April 21, 2021, 02:00:46 AM
You have likely lost a lifter roller.

thank for the info, opened it up and spot on a bad roller lifter

thanks
Title: Re: squeaky scratching sound in the engine
Post by: Propflux01 on April 22, 2021, 03:29:57 AM
Quote from: aalsalem on April 22, 2021, 02:24:52 AM
Quote from: HD Street Performance on April 21, 2021, 02:00:46 AM
You have likely lost a lifter roller.

thank for the info, opened it up and spot on a bad roller lifter

thanks

Any damage to the cam?
Title: Re: squeaky scratching sound in the engine
Post by: Don D on April 25, 2021, 05:43:22 AM
Its almost a given the cam is bad. Collateral damage