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IBCC cores are blowing out at the partings causing scrap cores and scrap castings if the cores aren't caught in the core room. 1) Install a seal around the towers in the lower corebox and seals in the drawbacks in the area of the cam/housing coreprints. See attachments. 2) On the cover of the IBCC there are keepers that hold the drawbacks in place when the corebox is closed, machine additional clearance in the lower 1/4" of the keepers. Burrs are occurring in the lower 1/4" which may be holding up the cover. This was tried with PPCR# PS08-17 and there have been no blow outs on the partings in 700 cycles.

File Attachments:

	File Name	Description	User Name	Upload Date
Delete	PS0817.ppt	Add IBCC seals	Appold, Brian (qz0qsm)	8/19/2008 2:21:21 PM
Delete	PS0817b.ppt	2)Add IBCC seals	Appold, Brian (qz0qsm)	8/19/2008 2:24:48 PM

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Primary Part Information:   Select*

Program	Part Type	Part #	Design Phase	Location	PTE	Status
GEN IV	Block	12571048	Prod	Saginaw	Appold, Brian	Complete - Approved

Impacted Part Information:

Program	Part Type	Part #	Design Phase	Location	PTE	Status
GEN IV	Block	12577461	Prod	Saginaw	Appold, Brian	Complete - Approved

Location Information:

Location	TM	Approval Date	Priority	Status
Saginaw	Bujouves, Jim	8/20/2008 7:21:48 AM	Normal	Approved