Chatter noise after dod delete
Thread Starter
On The Tree
Joined: Feb 2013
Posts: 190
Likes: 6
Chatter noise after dod delete I recently took on the task of doing a dod delete in my 08 silverado. I did the following
3 bolt 4x timing gear
stock 3 bolt 5.3 cam
Plugged lifter valley holes with lpe plugs
dod delete valley cover
Btr lifters
Disabled dod in ecm.
Only items I reused were pushrods and rockers.
After going over everything I filled it fluids I fired it up and nothing but chatter from up top. Has anyone gone through this? Is there something I missed?
3 bolt 4x timing gear
stock 3 bolt 5.3 cam
Plugged lifter valley holes with lpe plugs
dod delete valley cover
Btr lifters
Disabled dod in ecm.
Only items I reused were pushrods and rockers.
After going over everything I filled it fluids I fired it up and nothing but chatter from up top. Has anyone gone through this? Is there something I missed?
Thread Starter
On The Tree
Joined: Feb 2013
Posts: 190
Likes: 6
TECH Fanatic
Joined: Jan 2009
Posts: 1,063
Likes: 475
From: Bostwick, GA.
* A NON-DOD CAMSHAFT IS REQUIRED!
* MANUFACTURER WARRANTY ON JOHNSON OR COMP LIFTERS ONLY! OTHER BRAND LIFTERS DO NOT COME WITH A MANUFACTURER WARRANTY.
* Pushrod length can vary any time you change valvetrain components including, cam, lifters, heads, etc. Due to this, pushrod length should always be measured once all new components are installed. If you are unsure if you need a different pushrod length or need an educated estimate when ordering, please give us a call.
I recently took on the task of doing a dod delete in my 08 silverado. I did the following
3 bolt 4x timing gear
stock 3 bolt 5.3 cam
Plugged lifter valley holes with lpe plugs
dod delete valley cover
Btr lifters
Disabled dod in ecm.
Only items I reused were pushrods and rockers.
After going over everything I filled it fluids I fired it up and nothing but chatter from up top. Has anyone gone through this? Is there something I missed?
3 bolt 4x timing gear
stock 3 bolt 5.3 cam
Plugged lifter valley holes with lpe plugs
dod delete valley cover
Btr lifters
Disabled dod in ecm.
Only items I reused were pushrods and rockers.
After going over everything I filled it fluids I fired it up and nothing but chatter from up top. Has anyone gone through this? Is there something I missed?
The factory DOD camshaft has 8 lobes designed for DOD lifters. It’s not compatible with std lifters. It will work, but not correctly. Lifespan of that cam could be drastically shortened…
How did you plug the DOD towers? If you threaded and used pipe plugs (not sure what lpe plugs are), you’ll never get the tap shavings out of the towers without disassembling the engine.
Always measure pushrod length when changing lifters, or cam, or both.
Hopefully you’ve simply got a pushrod length issue as Old Buzzard has already suggested, and all is well.
TECH Fanatic
Joined: Jan 2009
Posts: 1,063
Likes: 475
From: Bostwick, GA.
"stock 3 bolt 5.3 cam"
Scott,
I noted this when I made the post and "assumed" it is a non-DOD shaft.
Maybe it's not and ....
The lpe is likely LPE. It's a pop rivit deal.
Lingenfelter Performance Engineering L960225305 Lingenfelter Performance Engineering DOD Delete Blind Sealing Plugs | Summit Racing
Scott,
I noted this when I made the post and "assumed" it is a non-DOD shaft.
Maybe it's not and ....
The lpe is likely LPE. It's a pop rivit deal.
Lingenfelter Performance Engineering L960225305 Lingenfelter Performance Engineering DOD Delete Blind Sealing Plugs | Summit Racing
Thread Starter
On The Tree
Joined: Feb 2013
Posts: 190
Likes: 6
"stock 3 bolt 5.3 cam"
Scott,
I noted this when I made the post and "assumed" it is a non-DOD shaft.
Maybe it's not and ....
The lpe is likely LPE. It's a pop rivit deal.
Lingenfelter Performance Engineering L960225305 Lingenfelter Performance Engineering DOD Delete Blind Sealing Plugs | Summit Racing
Scott,
I noted this when I made the post and "assumed" it is a non-DOD shaft.
Maybe it's not and ....
The lpe is likely LPE. It's a pop rivit deal.
Lingenfelter Performance Engineering L960225305 Lingenfelter Performance Engineering DOD Delete Blind Sealing Plugs | Summit Racing
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Thread Starter
On The Tree
Joined: Feb 2013
Posts: 190
Likes: 6
A few things to note here…
The factory DOD camshaft has 8 lobes designed for DOD lifters. It’s not compatible with std lifters. It will work, but not correctly. Lifespan of that cam could be drastically shortened…
How did you plug the DOD towers? If you threaded and used pipe plugs (not sure what lpe plugs are), you’ll never get the tap shavings out of the towers without disassembling the engine.
Always measure pushrod length when changing lifters, or cam, or both.
Hopefully you’ve simply got a pushrod length issue as Old Buzzard has already suggested, and all is well.
The factory DOD camshaft has 8 lobes designed for DOD lifters. It’s not compatible with std lifters. It will work, but not correctly. Lifespan of that cam could be drastically shortened…
How did you plug the DOD towers? If you threaded and used pipe plugs (not sure what lpe plugs are), you’ll never get the tap shavings out of the towers without disassembling the engine.
Always measure pushrod length when changing lifters, or cam, or both.
Hopefully you’ve simply got a pushrod length issue as Old Buzzard has already suggested, and all is well.
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TECH Senior Member
Joined: Jul 2009
Posts: 8,032
Likes: 661
It’s not required to have it done. Mast Motorsports told me it’s not needed when I swapped to a 98-02 f-body pan. Some people swap to a standard volume and pressure pump too.
Last edited by Jimbo1367; Jul 29, 2024 at 12:57 PM.
Gotcha now. The oil pan mod is popular but not necessary, as Jimbo pointed out, and it would have nothing to do with your chatter noise. Have you isolated the noise to a particular area of the engine?