5.4 swap
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From: Texarkana
5.4 swap
Hello, I'm getting ready to drop in a "new" to me 5.4 in my 2001 f-250. I found the engine very cheap and I know the guy I bought it from replaced the head gaskets and timing chain guides. When I picked it up, we dropped the pan and didn't see a speck of metal in either the pan or on the pick up screen to the oil pump.
I'm posting this because I have two questions;
1) is there anything I should address and/or replace before I drop this motor in?
2) I've read that the PI heads are keepers, how can I tell if this engine has them?
Thanks for any help.
I'm posting this because I have two questions;
1) is there anything I should address and/or replace before I drop this motor in?
2) I've read that the PI heads are keepers, how can I tell if this engine has them?
Thanks for any help.
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Joined: Nov 2007
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From: Roanoke, VA
The cylinder head surface has to be meticulously cleaned with a plastic scraper and chemicals. It is best to use the Motorcraft "special service" head gaskets. Now is the time to confirm before putting it in with all the labor involved. If he did not replace the TTY head bolts I would redo it. The factory had a difficult time sealing these heads from oil leaks and that may be the reason he worked on it. I would also replace the timing chain tensioners, preferably with the cast iron tensioners. Was the pan gasket replaced after inspection?
These engines sell for a high price at the salvage yards if they are good.
These engines sell for a high price at the salvage yards if they are good.
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From: muskegon mi.
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From: Texarkana
haven't replaced the pan gasket yet, but will, just dropped it to look at the insides then load it and go.
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From: Roanoke, VA
Yes that is the only place I know of unless you find them on-line.
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From: Texarkana
Just went out to look at the engine, I found the PI casting, thanks Redford. also took a rag and rubbed the gunk that was covering a sticker on the valve cover and found it reads " complies with 2004 EPA..." blah blah
. So I'm guessing this is an '03-'04. Yay for me (?)
. So I'm guessing this is an '03-'04. Yay for me (?)
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From: Roanoke, VA
That will work, newer meets the EPA requirements. If you got a good deal on this engine I would, depending on the skill level of the other guy, replace the HG's and bolts after getting a machine shop to check the heads. Lot of R&R labor to find out it leaks and cannot be driven. This is a difficult engine to seal for professionals. If new bolts were not used and torqued properly an otherwise good engine could be ruined once it goes through some heat cycles.
You can consider it a good investment to confirm the engine or just hope for the best. Did he say why he decided to not use such a valuable engine that has an $800 core charge? He replaced HG's but did not clean the valve covers? Makes you wonder how much time he spent cleaning the heads? One speck of dirt or metal flake near the high pressure oil gallery, up to 100psi, has proven many times to cause a massive oil leak up to a quart per 100 miles on the Modular's.
It's your baby.
Jesse.
ASE Master Tech
You can consider it a good investment to confirm the engine or just hope for the best. Did he say why he decided to not use such a valuable engine that has an $800 core charge? He replaced HG's but did not clean the valve covers? Makes you wonder how much time he spent cleaning the heads? One speck of dirt or metal flake near the high pressure oil gallery, up to 100psi, has proven many times to cause a massive oil leak up to a quart per 100 miles on the Modular's.
It's your baby.
Jesse.
ASE Master Tech
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From: Texarkana
Another question, I was swapping the wiring harness from the old engine to the new. Temp. sensor is on the crossover (?) on the front top of the old engine, but not the new. Where is it located?
