97 4.6L windsor top end rebuild issue...
#1
97 4.6L windsor top end rebuild issue...
Howdy,
I recently bought a 97 F150 (4.6L Windsor, Styleside, Extended Cab, 4x4). I picked it up for cheap due to the fact that it needed some work...mainly, it needed head gaskets, manifolds and a thorough tune-up (it has 160,000 miles). I've rebuilt my share of motors and was confident that I could do the job. That said, I've mainly been a Jeep guy so I am a bit new to the Ford motors in general.
I recently stripped the engine down to the block, cleaned and checked the valves, rockers, replaced valve seals (all within spec... according to Haynes) and reassembled the heads. I cleaned the block and checked the pistons and rings and all is well there too. I put the heads and fresh gaskets on along with new head bolts. I put the timing back together (according to the Haynes manual) and the crank turned freely two revolutions. I put the valve covers back on, intake, ect... I replaced the thermostat with a new one as well as new oem spark plugs and wires as well...put a new oil filter and oil pressure sending sensor on...filled the radiator and replaced the belt and tensioner...
So...here comes the panic!!!
I went ahead and tried to start it...and...I hear what appears to be a "valve slap" of some sort...the engine was turning over but wouldn't fire...so I let it sit for a second and checked for any leaks...I went to attempt to start it again and ... NOTHING!!!
I'm assuming that this is a timing issue but I'm not exactly familiar with Fords just yet...I'm hoping that someone here may have a few ideas so I can get this up and running! I'm sure that I'm forgetting something...
Thanks ahead of time!
D
I recently bought a 97 F150 (4.6L Windsor, Styleside, Extended Cab, 4x4). I picked it up for cheap due to the fact that it needed some work...mainly, it needed head gaskets, manifolds and a thorough tune-up (it has 160,000 miles). I've rebuilt my share of motors and was confident that I could do the job. That said, I've mainly been a Jeep guy so I am a bit new to the Ford motors in general.
I recently stripped the engine down to the block, cleaned and checked the valves, rockers, replaced valve seals (all within spec... according to Haynes) and reassembled the heads. I cleaned the block and checked the pistons and rings and all is well there too. I put the heads and fresh gaskets on along with new head bolts. I put the timing back together (according to the Haynes manual) and the crank turned freely two revolutions. I put the valve covers back on, intake, ect... I replaced the thermostat with a new one as well as new oem spark plugs and wires as well...put a new oil filter and oil pressure sending sensor on...filled the radiator and replaced the belt and tensioner...
So...here comes the panic!!!
I went ahead and tried to start it...and...I hear what appears to be a "valve slap" of some sort...the engine was turning over but wouldn't fire...so I let it sit for a second and checked for any leaks...I went to attempt to start it again and ... NOTHING!!!
I'm assuming that this is a timing issue but I'm not exactly familiar with Fords just yet...I'm hoping that someone here may have a few ideas so I can get this up and running! I'm sure that I'm forgetting something...
Thanks ahead of time!
D
#3
I'm pretty sure I did, I'm going to tear it apart and make sure in a few minutes. From my understanding, from what I've read about this particular timing setup, the crank won't manually turn over if it isn't timed correctly. Nonetheless, I'm concerned that I may have bent a valve, is that possible? I only turned it over a few cranks then stopped...Then it froze up! Is there a better writeup or instruction to timing the Windsor 4.6L than the Haynes manual?
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So was I!! I dodged a bullet on this one...$22 and I'm back in the game! However, I'm going to look into your advice for future reference. Now that I've torn this apart a couple of times, I know I'll be adding to it and tweaking it sooner than later. I have never been one to leave good enough alone!
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Well....Here's an unfortunate update for everyone...I got the ring, out it on and all back together. Tried to fire her up and....clankity clank clank..! So...I tore it all down, as I was doing so, I noticed a "bleep" load of antifreeze in the bottom of the pan! That led me back where I began and with a knot in my stomach, I tore it completely down....again...I took the passenger side head off (one of the rockers had broken off and three had fallen off!! You know what that means!) and to my amazement....The number one and four pistons were ****eyed! Now I'm boned! So now I've got to do a valve job, two pistons and rocker arms and I don't have a lift or engine stand! F...M...L! Any suggestions? Thanks again,
D
D
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Soooooo.....I'm in definite need of some advice!!! I was trying to piece this together on a minimal budget (no choice)...and...well, now I'm really boned!!! I yanked it, did a valve job...cleaned/honed the cylinders as best I could in my shop...put two new pistons with .010 over rings...cleaned everything!!! Snapped it all back together...and...it cranked...but...didn't fire! Worse yet, it spat fluid/water (used water J.I.C to save money...I had a feeling I knew what would happen!) out the passenger side exhaust manifold after I tried turning it over and I could hear fluid draining into the oil pan again!!! Obviously, my passenger side head is SHOT but I'm curious if replacing just that one is worth it or do I somehow have to try to figure out how I'm going to afford a new/used engine. If I do have to do that...any suggestions on the best pricing for a reman/rebuilt/used motor? I don't have much but at this point I don't have much of a choice it seems! Is it worth looking into the 5.4? I appreciate your input...
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