Tick or Tap? any and all input please.

[syn-]

http://www.youtube.com/watch?v=n7yWAG-eY9Y

So in short I got this motor off a 96 ranger that had 96K on the clock. Yet the block and one of the heads has reman. stamp. The head that has the stamp is actually the one I hear this noise coming from. It does not do it when I start the truck it comes after about 3-4mins after the truck has been started. The guy who first started the motor said it had a bad lifter tap, but they got it to quiet down to this. Somethings its not as loud and I have to go to the passenger wheel well to hear it or under the passenger side to hear it better. Also I did rev the motor this morning and it seems to speed up with the truck but I can barely hear it till the rev comes back down. My thoughts, its bad lifter, oil sending unit is going, or maybe oil pump? With all that said, the truck drives much better than my last motor (cracked heads) and pulls harder from a stop. Though depending on outside temp. depends on how peppy it feels.

Motor has all new ford gaskets and was cleaned thoroughly, except for the head gaskets.

 

[Brian Johnson]

Get a mechanical 0il pressure gage and test the actual oil pressure at the temperature you are hearing the noise. that will eliminate the engine oil pressure in general. there could be a pressure problem at one of the lifters. you could have a bad lifter, rocker, or a push rod problem.