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Tech Talk => Engine Mechanical / Electrical => Topic started by: SomeThingWilder on April 28, 2016, 07:15:09 PM

Title: Ticking from rocker arm
Post by: SomeThingWilder on April 28, 2016, 07:15:09 PM

So i cant get rid of a "ticking" coming from cylinder 1 exhuast rocker arm. I know the roller rockers tick but for some reason this one seem to be the loudest.  My buddy and i have pulled the valve cover while its running to make sure its getting oil out of its peep hole which it is...checked to make sure it was  Adjusted it to zero lash and still ticks loud. Its a 468 bbc  any thoughts? 

Title: Re: Ticking from rocker arm
Post by: jimpen on April 28, 2016, 07:34:50 PM

Solid or hydraulic?


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Title: Re: Ticking from rocker arm
Post by: Bunger on April 28, 2016, 07:39:10 PM

Could it be the lifter?


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Title: Re: Ticking from rocker arm
Post by: SomeThingWilder on April 28, 2016, 07:39:46 PM

Hydraulic

Title: Re: Ticking from rocker arm
Post by: SomeThingWilder on April 28, 2016, 07:50:46 PM

Brand new engine all brand new parts engine has only been ran in driveway for maybe 20-25 mins to adjust carb and make sure no leaks on water/fuel lines

Title: Re: Ticking from rocker arm
Post by: jimpen on April 28, 2016, 08:12:27 PM

They need zero then have a turn.


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Title: Re: Ticking from rocker arm
Post by: SomeThingWilder on April 28, 2016, 08:23:33 PM

Thats what i did my engine builder told me it should be 5/8 turn . Maybe im just super paranoid from not really ever hearing a roller motor up close. I know its the last valve/rocker to receive oil from pump?

Title: Ticking from rocker arm
Post by: jimpen on April 28, 2016, 08:25:56 PM

Quote from: SomeThingWilder on April 28, 2016, 08:23:33 PM

Thats what i did my engine builder told me it should be 5/8 turn . Maybe im just super paranoid from not really ever hearing a roller motor up close. I know its the last valve/rocker to receive oil from pump?

. If you hear something I would be worried. Can you run it by you builders shop?


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Title: Re: Ticking from rocker arm
Post by: GT Jets on April 28, 2016, 08:30:50 PM

Quote from: SomeThingWilder on April 28, 2016, 08:23:33 PM

Thats what i did my engine builder told me it should be 5/8 turn . Maybe im just super paranoid from not really ever hearing a roller motor up close. I know its the last valve/rocker to receive oil from pump?

With the engine off, back the rocker off and press the pushrod into the lifter ands see if it feels springy.

Have you checked the obvious?
Is the pushrod wearing on the guidplate? Is the rocker stud straight? Hope is the contact on the valve stem? Is the rocker arm contacting the rotator?

Who's rocker arms?  Got a picture?

Can you tell if it's clicking on the "up" stroke or down?

GT

Title: Re: Ticking from rocker arm
Post by: SomeThingWilder on April 28, 2016, 08:34:40 PM

Quote from: jimpen on April 28, 2016, 08:25:56 PM

. If you here something I would be worried. Can you run it by you builders shop?


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he's  actually out in Parker. 

Title: Re: Ticking from rocker arm
Post by: SomeThingWilder on April 28, 2016, 08:46:45 PM

Quote from: GT Jets on April 28, 2016, 08:30:50 PM

With the engine off, back the rocker off and press the pushrod into the lifter ands see if it feels springy.

Have you checked the obvious?
Is the pushrod wearing on the guidplate? Is the rocker stud straight? Hope is the contact on the valve stem? Is the rocker arm contacting the rotator?

Who's rocker arms?  Got a picture?

Can you tell if it's clicking on the "up" stroke or down?

GT

- havent check the springy deal
-pushrod not wearing
-stud is straight 
-Harland Sharp arms no pictures can get some tomorrow  and i cant tell if it is up or down.

Title: Re: Ticking from rocker arm
Post by: Blue2184 on April 29, 2016, 04:50:46 AM

I had the same deal with my set of hydraulic lifters, come to find out according to the manufacture I was running the wrong weight oil? Might check with the manufacture?


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Title: Re: Ticking from rocker arm
Post by: SomeThingWilder on April 29, 2016, 09:32:17 AM

Quote from: Blue2184 on April 29, 2016, 04:50:46 AM

I had the same deal with my set of hydraulic lifters, come to find out according to the manufacture I was running the wrong weight oil? Might check with the manufacture?


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humm very interesting.  Will call them on way home

Title: Re: Ticking from rocker arm
Post by: YellowJacket on April 29, 2016, 03:24:43 PM

Bent pushrod?

Title: Re: Ticking from rocker arm
Post by: 77 - eliminator on April 29, 2016, 05:59:13 PM

Maybe try it on another stud see if it does it there