BluePrint 383 just mounted, fresh install and first problem

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Apr 23, 2017 | 10:55 AM

ricks_road54

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[SOLVED] BluePrint 383 just mounted, fresh install and first problem

Hi,

I just finish to mount the blueprint 383 crate engine 430HP full roller... But even if the motor start correctly and run "great".

I have a really strange noise. Any advice, what you thinking about it?

Thanks

Last edited by ricks_road54; Apr 26, 2017 at 05:26 PM.

Apr 23, 2017 | 11:06 AM

cv67

Team Owner

Joined: Oct 2004

Posts: 81,241

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From: altered state

St. Jude Donor '05

Uh oh not good..(sounds like valvetrain)first off call blueprint...(are all these motors run before shipping curious)
How is the oil pressure?

If good, remove the valvecovers one at a time restart see if its still there
sometimes the rockers can touch the inside of the valve cover depending

Last edited by cv67; Apr 23, 2017 at 11:06 AM.

Apr 23, 2017 | 11:31 AM

drwet

Melting Slicks

Joined: Dec 2009

Posts: 3,235

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From: Thunder Bay

Hard to be sure from a video, but it doesn't sound serious to me. I'd be looking for something rubbing somewhere. Fan blade on the shroud, flywheel on the bellhousing shield, etc. Take your stethoscope and see if you can figure out where its coming from.

Apr 23, 2017 | 01:26 PM

MCMLXIX

Racer

Joined: Jan 2004

Posts: 303

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From: los angeles ca

Did you check the rod to oil pan clearance?
A lot of 383's sound like that when you don't.

Apr 23, 2017 | 01:30 PM

cv67

Team Owner

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From: altered state

St. Jude Donor '05

good call on the pan

Apr 23, 2017 | 01:45 PM

vannmike

Racer

Joined: Apr 2015

Posts: 412

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From: Carrollton, Georgia

Quote:

Originally Posted by ricks_road54

Call them. I have had there 396 sbc for a little over a year, there very helpful and stand by there product.

Apr 23, 2017 | 03:13 PM

Bloodzone

Burning Brakes

Joined: May 2014

Posts: 884

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From: Rhine Georgia

Quote:

rockers can touch the inside of the valve cover

What he said.

Apr 23, 2017 | 09:03 PM

mrichi

Instructor

Joined: Jan 2012

Posts: 216

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From: Tanunda South Australia

That does not sound good, could just pull the valve covers and have a look

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Apr 24, 2017 | 02:56 PM

Jebbysan

Dr. Detroit

Joined: Mar 2012

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From: New Braunfels Texas

Sounds like flexplate rubbing.....is this an auto trans car?

Jebby

Apr 24, 2017 | 03:35 PM

#10

Danish Shark

Burning Brakes

Joined: Aug 2008

Posts: 878

Likes: 55

From: Deep South Denmark

Listen under the car, if it's the oil pan (which it sounds like) it will sound much worse under the car.

/Karsten

Apr 24, 2017 | 04:14 PM

#11

Buccaneer

Safety Car

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From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...

Quote:

Originally Posted by Jebbysan

Sounds like flexplate rubbing.....is this an auto trans car?

Jebby

It doesn't sound like valvetrain noise, but does sound more like flexplate if auto or pan noise. Good luck.

Apr 24, 2017 | 04:54 PM

#12

Big2Bird

Le Mans Master

Joined: Dec 2006

Posts: 8,837

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Quote:

Originally Posted by Buccaneer

It doesn't sound like valvetrain noise, but does sound more like flexplate if auto or pan noise. Good luck.

Yep. I have heard them hit the pan, hit the valve covers, tap a windage tray. It sounds like that to me. Nothing horrible, just a PITA to fix on a new build.

Apr 24, 2017 | 05:56 PM

#13

gdh

Le Mans Master

Joined: Jan 2000

Posts: 8,721

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From: Canada

I had a rocker hitting the valve cover on a new ZZ383, didn't sound like that. Pull the valve covers and check for wear then move on to other areas that have been suggested.

Apr 24, 2017 | 06:16 PM

#14

barnes # 02

Cruising

Joined: Sep 2016

Posts: 14

Likes: 0

From: SUMMITVILLE Indiana

I have installed too long of torque converter bolts and they stuck through the flex plate and rubbed, made that same sound

Apr 25, 2017 | 05:30 PM

#15

ricks_road54

Thread Starter

Intermediate

Joined: Feb 2015

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Quote:

Originally Posted by mrichi

That does not sound good, could just pull the valve covers and have a look

I just remove them and check flexplate. It seems that all is ok on them... Today i made an oil filter and oil change. Tomorrow i will initiate oil. And try to run again.

It's not the FAN because it is electric and with or without him, i have the noise...

Last edited by ricks_road54; Apr 25, 2017 at 05:31 PM. Reason: add pictures

Apr 25, 2017 | 05:34 PM

#16

ricks_road54

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If problem persist i try to disengage the converter from flexplate

Apr 25, 2017 | 05:53 PM

#17

gdh

Le Mans Master

Joined: Jan 2000

Posts: 8,721

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From: Canada

Any metal filings in the oil filter?

Apr 25, 2017 | 06:09 PM

#18

MCMLXIX

Racer

Joined: Jan 2004

Posts: 303

Likes: 28

From: los angeles ca

With the engine running.
Rub your hand on the side of the oil pan up near the flange.
Start at the oil filter.

Apr 25, 2017 | 07:55 PM

#19

Big2Bird

Le Mans Master

Joined: Dec 2006

Posts: 8,837

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Quote:

Originally Posted by ricks_road54

Any Shiney spots inside the valve covers? Doesn't take much.

Apr 26, 2017 | 05:25 PM

#20

ricks_road54

Thread Starter

Intermediate

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Solved !

Quote:

Originally Posted by Big2Bird

Any Shiney spots inside the valve covers? Doesn't take much.

No metal filling in the oil filterand in the oil. No shiney spot.

We solve the problem using a drill with the correct tip to start the oil pump (during 10-15 minutes). After oil perspire by rocker. We start again the engine. No more noise

Just after use a stromboscopic light to make my advance right (8°, BluePrint recommande 32-34° @ 3500trs. How many @750trs?).

My Corvette will be ready soon to take the road

Thanks for your assistance.

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