Let’s guess what is broken - updated

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Aug 28, 2019 | 06:07 PM

j-mart32

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Let’s guess what is broken - updated

Was getting the car tuned and everything was “going well”. Tuner was going around the block cleaning up the cruising AFR and this noise came in. He shut it down and rolled into driveway.

Can’t pull the valve covers till Later tonight after work

Last edited by j-mart32; Aug 30, 2019 at 09:17 PM.

Aug 28, 2019 | 06:13 PM

Dren

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Intrigued..

Aug 28, 2019 | 06:17 PM

LilJayV10

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Left rear taillight is out

Aug 28, 2019 | 06:22 PM

j-mart32

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Aug 28, 2019 | 06:24 PM

j-mart32

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Video posted. Sorry on delay, new to vids and doing this via phone

Aug 28, 2019 | 06:32 PM

s30.hybrid

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Sounds like a valve event... something top end. Maybe a broken spring or rocker arm.

Aug 28, 2019 | 06:37 PM

98CayenneT/A

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Im going rocker arm came loose.

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Aug 28, 2019 | 06:51 PM

j-mart32

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I’m hoping top end and something stupid. The noise is a hollow sound and rhythm is weird for sure. It had been making good pulls with no issues and then did this at 17% throttle 🤦🏻dum♂️

Aug 28, 2019 | 06:55 PM

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j-mart32

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I should include that it’s a decent top end. Jesel rockers, pac 1208x springs, motel 5850 lifters. Hoping rocker is loose like someone mentioned

Aug 28, 2019 | 09:50 PM

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j-mart32

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Another question for when I get home to check it out some. If the top end looks ok, I’m gunna disconnect the coils/ injectors and turn it over. How much oil pressure should I see when cranking the engine over?

Aug 28, 2019 | 10:33 PM

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LLLosingit

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With the spark plugs out I usually see 35-50 on used engines.

Aug 28, 2019 | 11:05 PM

#13

j-mart32

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Quote:

Originally Posted by LLLosingit

With the spark plugs out I usually see 35-50 on used engines.

How about with plugs in, coils disconnected ?

headed home now to start checking stuff. Starting at flex plate/ bolts

Aug 29, 2019 | 12:59 AM

#14

j-mart32

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Aug 29, 2019 | 07:46 AM

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Mavn

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This is why stock rockers >

Aug 29, 2019 | 08:28 AM

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ddnspider

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Quote:

Originally Posted by Mavn

This is why stock rockers >

We don't need no mountain lift and rawkers....stock FTW.

Aug 29, 2019 | 08:44 AM

#17

j-mart32

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Aug 29, 2019 | 09:48 AM

#18

KCS

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Quote:

Originally Posted by j-mart32

Thats pretty crazy. I wonder how that could have happened.

Aug 29, 2019 | 10:12 AM

#19

j-mart32

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Quote:

Originally Posted by KCS

Thats pretty crazy. I wonder how that could have happened.

You and me both. Trashed three of them. Shaft was snapped and so was the top of the bolts so they are still in there.

Hoping the damage is limited to here though, and the cam is OK