possible obstuction inside the motor.

olemiss318 · April 25th, 2010, 11:03 PM

This is my first motor build and im building the motor with someone who hasn't ever done a 4.6. The heads are on but the cams are off. We're prepairing to time the motor and it won't turn freely.

----Is there anything simple that im missing that would keep the motor from turning freely besides an obstruction inside the cylinder?

F8L GT · April 25th, 2010, 11:05 PM

you dont have spark plugs in it do you? if so take them out

olemiss318 · April 25th, 2010, 11:07 PM

no the sparkplugs are out

F8L GT · April 25th, 2010, 11:08 PM

sounds like you need to take it back apart and check all your tolerances again

olemiss318 · April 25th, 2010, 11:34 PM

I haven't taken the short block apart all i have done is swapped a stock head with a stock head.

F8L GT · April 25th, 2010, 11:35 PM

well take the heads back off and see how it turns over and go from there

sharkbait · April 25th, 2010, 11:45 PM

why are you swapping a stock head on there??

Put a Pi head on there before you regret it.

olemiss318 · April 25th, 2010, 11:54 PM

i bought the car from a drug auction they claimed the motor was bad so i decided to risk it and just get the motor running well shortly after the motor locked up. I havent taken the motor apart to see why yet but i bought a motor out of a wrecked mustang that was hit hard. the left head cracked the face plate and the oil filter adapter plate and along with bending the pullys
The block has no visible damage

what is a pi swap

F8L GT · April 26th, 2010, 12:09 AM

pi swap is putting heads cams and intake on your shortblock out of a 99-04 gt

olemiss318 · April 26th, 2010, 12:11 AM

thank you
and is it that much of a difference?

F8L GT · April 26th, 2010, 12:12 AM

its a huge difference

jasons_98gt · April 26th, 2010, 12:22 AM

the bottom end isnt seized is it?

F8L GT · April 26th, 2010, 12:23 AM

Originally Posted by jasons_98gt

the bottom end isnt seized is it?

i would hope we wouldve tried tuning it over first before putting the heads on to make sure

jasons_98gt · April 26th, 2010, 12:23 AM

or could have done some possible internal damage if the car was hit that hard damn!

olemiss318 · April 26th, 2010, 12:31 AM

the motor will turn but it stops at almost a full turn and i dont want to force it and do any damage so thats where i am now

F8L GT · April 26th, 2010, 12:33 AM

i say pull the heads off and try turning it over

April 25th, 2010, 11:03 PM	#1
olemiss318 Newbie Join Date: Apr 2010 Posts: 6 iTrader: 0 reviews	possible obstuction inside the motor. This is my first motor build and im building the motor with someone who hasn't ever done a 4.6. The heads are on but the cams are off. We're prepairing to time the motor and it won't turn freely. ----Is there anything simple that im missing that would keep the motor from turning freely besides an obstruction inside the cylinder?

April 25th, 2010, 11:05 PM	#2
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	you dont have spark plugs in it do you? if so take them out __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

April 25th, 2010, 11:08 PM	#4
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	sounds like you need to take it back apart and check all your tolerances again __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

April 25th, 2010, 11:35 PM	#6
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	well take the heads back off and see how it turns over and go from there __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

April 25th, 2010, 11:45 PM	#7
sharkbait Hooo Ha Ha 1997 Mustang GT 11.65 @ 115 Join Date: Apr 2009 Location: Pasadena MD Posts: 9,743 iTrader: 10 reviews	why are you swapping a stock head on there?? Put a Pi head on there before you regret it. __________________ 410rwhp 520rwtq @ 12.9 psi

April 25th, 2010, 11:07 PM	#3
olemiss318 Newbie Join Date: Apr 2010 Posts: 6 iTrader: 0 reviews	no the sparkplugs are out

April 25th, 2010, 11:34 PM	#5
olemiss318 Newbie Join Date: Apr 2010 Posts: 6 iTrader: 0 reviews	I haven't taken the short block apart all i have done is swapped a stock head with a stock head.

April 25th, 2010, 11:54 PM	#8
olemiss318 Newbie Join Date: Apr 2010 Posts: 6 iTrader: 0 reviews	i bought the car from a drug auction they claimed the motor was bad so i decided to risk it and just get the motor running well shortly after the motor locked up. I havent taken the motor apart to see why yet but i bought a motor out of a wrecked mustang that was hit hard. the left head cracked the face plate and the oil filter adapter plate and along with bending the pullys The block has no visible damage what is a pi swap

April 26th, 2010, 12:09 AM	#9
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	pi swap is putting heads cams and intake on your shortblock out of a 99-04 gt __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

April 26th, 2010, 12:11 AM	#10
olemiss318 Newbie Join Date: Apr 2010 Posts: 6 iTrader: 0 reviews	thank you and is it that much of a difference?

April 26th, 2010, 12:12 AM	#11
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	its a huge difference __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

April 26th, 2010, 12:22 AM	#12
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	the bottom end isnt seized is it?

April 26th, 2010, 12:23 AM	#14
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	or could have done some possible internal damage if the car was hit that hard damn!

April 26th, 2010, 12:31 AM	#15
olemiss318 Newbie Join Date: Apr 2010 Posts: 6 iTrader: 0 reviews	the motor will turn but it stops at almost a full turn and i dont want to force it and do any damage so thats where i am now

April 26th, 2010, 12:33 AM	#16
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	i say pull the heads off and try turning it over __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

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