cylinder head leak ? - 2003-04 Mach 1 Registry Owners Club

zaid · 06-23-2013, 07:57 PM

is it possible ? will it leak from the cylinder head bolt ?

DSG2003Mach1 · 06-23-2013, 08:14 PM

I blew a gasket on my lightning and it leaked out between the head and block so it can happen

zaid · 06-23-2013, 08:25 PM

Quote:

Originally Posted by DSG2003Mach1

I blew a gasket on my lightning and it leaked out between the head and block so it can happen

The machine shop checked the head before the install and they said it was fine. when I was cleaning the bolt passages in the block, there was coolant in one of them, I blew it off but was wondering if it the bold or maybe I need to re torque the head ? I was reading is some forums about a sealer used before the install ? I used Ford racing bolts and head gaskets brand new

blown03Mach1 · 06-23-2013, 08:34 PM

None of the head bolts on the 4.6 go into coolant passages. Only way you would be leaking is if the head is cracked or the head gasket is not sealing.

Btw no need for sealant on these head bolts. See above.

DSG2003Mach1 · 06-23-2013, 08:48 PM

Ya you don't need sealant... Head might have been checked but what about the block? May not have been cleaned properly, gasket might have been damaged, might not have been torqued properly etc

zaid · 06-23-2013, 09:26 PM

Quote:

Originally Posted by DSG2003Mach1

Ya you don't need sealant... Head might have been checked but what about the block? May not have been cleaned properly, gasket might have been damaged, might not have been torqued properly etc

everything was cleaned and torqued on the specs. block was cleaned at the machine shop.

06-23-2013, 07:57 PM	#1
zaid Registered User Join Date: Feb 2012 Location: Kettering, Ohio Posts: 71	cylinder head leak ? is it possible ? will it leak from the cylinder head bolt ? Attached Thumbnails

06-23-2013, 08:14 PM	#2
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: cylinder head leak ? I blew a gasket on my lightning and it leaked out between the head and block so it can happen __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

06-23-2013, 08:34 PM	#4
blown03Mach1 8LB YNER Join Date: Mar 2005 Location: Tampa Posts: 5,661	Re: cylinder head leak ? None of the head bolts on the 4.6 go into coolant passages. Only way you would be leaking is if the head is cracked or the head gasket is not sealing. Btw no need for sealant on these head bolts. See above. __________________ Just because you're winnin' Don't mean you're the lucky ones TR 2003 (Jezebel) sold Mar 12...

06-23-2013, 08:48 PM	#5
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: cylinder head leak ? Ya you don't need sealant... Head might have been checked but what about the block? May not have been cleaned properly, gasket might have been damaged, might not have been torqued properly etc __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

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