5.0 engine tapping

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5.0 engine tapping

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Ford Forum >> Ford Cars >> Ford Mustang >> 5.0 engine tapping

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5.0 engine tapping - 9/30/2006 2:27:23 PM

eriksmith

Posts: 1
Joined: 9/30/2006
Status: offline

I bought the car non-running. The kid that had it before me flooded the engine with antifreeze while trying to put a larger throttle body and egr plate on. After this the engine started tapping.

I believe it has collapsed lifters, so I replaced them. Meanwhile I removed the heads and rebuilt them... regrinding the valve seats, replacing the valve seals, etc... I changed the oil and motor flushed the engine a few times hoping it would remove the remaining antifreeze. After all of this, it is still tapping.

Any suggestions on what to do next?

Post #: 1

RE: 5.0 engine tapping - 10/24/2006 1:38:40 AM

mike69

Posts: 12
Joined: 10/22/2006
Status: offline

hows the cam look could there be any cracks or a bad bearing.

(in reply to eriksmith)

Post #: 2

RE: 5.0 engine tapping - 11/10/2006 10:23:27 PM

mustanglover66

Posts: 3
Joined: 11/9/2006
Status: offline

+1 It could also be a washed lobe on the cam

(in reply to mike69)

Post #: 3

RE: 5.0 engine tapping - 1/2/2007 7:33:21 PM

cobra79

Posts: 59
Joined: 11/14/2006
Status: offline

If he hydrauliced the engine it could have a cracked piston or rod bearing out.

(in reply to mustanglover66)

Post #: 4

RE: 5.0 engine tapping - 1/2/2007 9:12:25 PM

wheelsup68

Posts: 431
Joined: 10/30/2006
Status: offline

Are you sure the bottom end is good? Did not wash out the main bearings did it? May have a stuck piston ring from the coolant in cylinders. I would do compression check just to be sure. May have to fill cylinder with oil through plug holes to free up.

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