Internal rattle??? - IMBOC
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post #1 of 34 (permalink) Old 08-19-2016, 03:59 PM Thread Starter

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Internal rattle???

I am new to this sight and new Bullitt owner. I have a tapping\cackling noise coming from passenger side valve cover from what the shop and I can tell by just listening to it. Is there a right up on changing the lash adjusters and the cam followers? It has a new cam and springs from previous owner shop installed. I heard that the adjuster can wear out and the whole thing move up n down which causes that noise. I am prepared to change all followers and adjusters. Any help would be great. I want to do it all myself like I do with all my cars. I just need some info.
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post #2 of 34 (permalink) Old 08-19-2016, 05:13 PM
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new cam, should be new cams if changed unless just one was an issue. how many miles on the motor? were the guides changed too?

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post #3 of 34 (permalink) Old 08-21-2016, 01:18 PM

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This was my old Bullitt. The cams were installed when the car had ~70,000 miles by Brenspeed back in 2013. They recommended replacing valve springs, which were done at the same time. They didn't mention replacing any of the followers or guides and they weren't on the receipt, so I assume still all stock. It had just under 80,000 miles when I sold the car earlier this year. I've spoken to Jacob about this and recommended he come here for more info as I'm just not savvy when it comes to the internal workings of these mod motors. Is this a common thing? In all the posts I've read on here over the years, this hasn't really come up all that much.
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post #4 of 34 (permalink) Old 08-21-2016, 01:42 PM
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sound can travel easily. first step would be to use a stethoscope to try to narrow down exactly where the sound is coming from. if not one of those, a long screwdriver will work, just not as well.
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post #5 of 34 (permalink) Old 08-23-2016, 12:55 PM Thread Starter

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Thanks itsabullitt for the help.
I have passenger side valve cover off and all followers and adjusters now. Currently working on driver side. So basically I cant do sound test. The noise can only be heard from the top. I was told from a shop that previously worked on this car that the sound is coming from valve train. How do I tell if the adjusters or followers are bad? Should I just replace them and see if sound goes away? Is there other ways to tell if something else may be wrong with it? As stated by itsabullitt the cams and springs are new but factory followers and adjusters.
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post #6 of 34 (permalink) Old 08-23-2016, 02:48 PM

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My first thought was exhaust leak at the header, especially if there's a cackle. I chased a rattle down that sounded like the engine letting go, but luckily was just the aftermarket shifter knob. Hopefully this fixes it for you, but that's where I would go next if the noise is still there.
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post #7 of 34 (permalink) Old 08-23-2016, 03:00 PM
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you can still do a sound test by listening at the head, front cover, etc.

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post #8 of 34 (permalink) Old 08-23-2016, 03:53 PM

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Also, what weight oil are you running? These mod motors have tight tolerances and need a lighter weight oil. I always ran the recommended 5w20.

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post #9 of 34 (permalink) Old 08-23-2016, 09:56 PM

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assuming the sound's frequency speeds up with rpm?


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post #10 of 34 (permalink) Old 08-24-2016, 08:48 AM Thread Starter

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I am using Mobil 1 5w20 and was recently changed. The sound frequency doesn't really change. At idle I hear nothing. I can rev it and slightly hear it. Put it under a load at about 2000 you can hear it. Cruising down the highway at a constant speed sound is constant. Put a little in the gas it goes away or let off it goes away. NO lose of power at all. With the inconsistency its hard to tell what is making the sound which is why I took it by the shop to get their opinion. Which is why I started with the passenger side valve cover. My problem is I don't know how to tell if any of those parts are bad. I know a decent amount about cars but cant figure this out. Is there certain brands any of you would recommend on followers and adjuster? I would still like to know what you all think on the issue. I am afraid that I will change them and still have the noise. There is no signs I can physically see to determine the problem. How do you tell if a follower or adjuster is bad? Could spark plugs or injectors make noise? Thanks in advance for the help.
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post #11 of 34 (permalink) Old 08-24-2016, 02:13 PM Thread Starter

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Are the Trick Flow adjusters and followers that LMR sells a good buy?
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post #12 of 34 (permalink) Old 08-24-2016, 02:55 PM
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injectors can make noise. again, use the stethoscope to listen.

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post #13 of 34 (permalink) Old 08-25-2016, 08:35 AM Thread Starter

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How do I use a stethoscope if injectors, followers, adjusters, coils, and plugs are removed?
Serpent what is your thoughts on Brand of followers and adjusters? Are the trick flow from LMR better or equal to OEM?
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post #14 of 34 (permalink) Old 08-25-2016, 10:50 AM
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OEM. Call Steve at Tasca Ford Parts.


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post #15 of 34 (permalink) Old 08-25-2016, 11:22 AM
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Quote:
Originally Posted by Jacob Staples View Post
How do I use a stethoscope if injectors, followers, adjusters, coils, and plugs are removed?
Serpent what is your thoughts on Brand of followers and adjusters? Are the trick flow from LMR better or equal to OEM?
I did not realize you had removed all that stuff. obviously now, you can't use the stethoscope to determine where the noise was coming from. car has to run so you can listen.

I have no experience with the trick flow followers and adjusters so cannot comment.

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