Coolant/crankcase issue.

Reply Subscribe

Thread Tools

Search this Thread

May 23, 2011 | 11:16 PM

oChristiano

Thread Starter

TECH Resident

iTrader: (6)

Joined: Sep 2008

Posts: 793

Likes: 2

From: SoCal, SFV

Coolant/crankcase issue.

Fired up my Z28 after recently finishing putting in a new 42k mile long block in it. Let it run/idle never even got to operating temp and found coolant in my crankcase. While it was out I regasketed everything new head bolts new intake/head gaskets etc. Torque down heads in 3 passes to 65ft lbs in the proper order. I have no oil in my radiator and all my coolant ended up in the block, radiator was dry. Could it be the heads are warped/cracked? Or the block? I almost positive it isn't my gaskets as there is no oil in my radiator..probably going to tear everything off tomorrow to have the heads checked..

Any info/ideas/insight?

May 23, 2011 | 11:46 PM

jr79

Registered User

Joined: Apr 2011

Posts: 21

Likes: 0

Before I'd tear it back down, did you tear the engine completely down or just replace headgaskets? Are you using coolant? Have you psi tested the coolant system to verify your loosing coolant?

May 24, 2011 | 05:20 AM

RamAir95TA

TECH Senior Member

iTrader: (2)

Joined: May 2005

Posts: 9,467

Likes: 8

From: South Jersey

Quote:

Originally Posted by jr79

Before I'd tear it back down, did you tear the engine completely down or just replace headgaskets? Are you using coolant? Have you psi tested the coolant system to verify your loosing coolant?

Did you even read his post?

May 24, 2011 | 05:54 AM

SS RRR

Village Troll

iTrader: (2)

Joined: Oct 2002

Posts: 11,111

Likes: 598

From: Jackstandican

Heads could most definitely be cracked or warped. Slight possibility the block may be cracked around a water jacket as well.

May 24, 2011 | 05:57 AM

jr79

Registered User

Joined: Apr 2011

Posts: 21

Likes: 0

Quote:

Originally Posted by RamAir95TA

Did you even read his post?

Sorry really tired last didnt read the whole thing or just missed it.

May 24, 2011 | 04:36 PM

oChristiano

Thread Starter

TECH Resident

iTrader: (6)

Joined: Sep 2008

Posts: 793

Likes: 2

From: SoCal, SFV

Quote:

Originally Posted by SS RRR

Heads could most definitely be cracked or warped. Slight possibility the block may be cracked around a water jacket as well.

How can I check aluminum heads for cracks? They can't be magnafluxed(SP?) right? I'm hoping one of the heads might just be warped..I have a set I know is good just need to swap one valve.