Camshaft not getting oil
#17
#18
PICS WHERE ROCKER ARM CAME OFF
Got more pics at photobucket linked below. It looks to me like everything is in place except this 1 rocker arm that came loose. I still have not found the screw that holds the rocker arm in place.
I bought Mobil 1 oil 5w20 and a mobil 1 oil filter today. I plan to clean the valve bank with a little diesel and a brush and remove all the debris out carefully then change the oil. I have read that the motorcraft oil and filter is best so if I can get the truck running again I will go ahead and change both again. Just using this Mobil 1 as a wash until I can get the motorcraft products. Also will drop the oil pan and check for debris and the strainer screen.
Questions
Can I use the oil pan gasket again?
Can I use the valve cover gasket again?
Suggestions as to what I should do next to proceed with repair would really be appreciated.
FORD TRUCK pictures by BigWill1767 - Photobucket
I bought Mobil 1 oil 5w20 and a mobil 1 oil filter today. I plan to clean the valve bank with a little diesel and a brush and remove all the debris out carefully then change the oil. I have read that the motorcraft oil and filter is best so if I can get the truck running again I will go ahead and change both again. Just using this Mobil 1 as a wash until I can get the motorcraft products. Also will drop the oil pan and check for debris and the strainer screen.
Questions
Can I use the oil pan gasket again?
Can I use the valve cover gasket again?
Suggestions as to what I should do next to proceed with repair would really be appreciated.
FORD TRUCK pictures by BigWill1767 - Photobucket
#19
Looking at your pics I can say the head is trashed. Look at how dark the cam and cam caps are compared to the rest of the head. Those parts ran very hot from lack of lube. Also looking beside the caps at the cam I can see metal shavings sticking out. I bet if you take off the rear cap you will find a piece of oil filter clogging the oil passage. Also there are no screws holding the rockers in. The valvesprings do that.
#20
That head is junk. The camshaft bores in the cylinder head do not have a "bearing" insert-the cams ride on the machined aluminum "bore" for the camshaft. That head was starved for oil,and basically the camshaft "chewed" it's way into the cylinder head. That's why the follower popped off-there's not enough tension there to hold it in place against the valvespring and lash adjuster. Before you go on replacing the head-you need to know why it was starved for oil. What caused it,and how do you prevent it from happening again? I know it sucks,but just be glad it wasn't one of a pair of $2000 ported cylinder heads. Stock heads are cheap in comparison.
JL
JL
#21
That head is junk. The camshaft bores in the cylinder head do not have a "bearing" insert-the cams ride on the machined aluminum "bore" for the camshaft. That head was starved for oil,and basically the camshaft "chewed" it's way into the cylinder head. That's why the follower popped off-there's not enough tension there to hold it in place against the valvespring and lash adjuster. Before you go on replacing the head-you need to know why it was starved for oil. What caused it,and how do you prevent it from happening again? I know it sucks,but just be glad it wasn't one of a pair of $2000 ported cylinder heads. Stock heads are cheap in comparison.
JL
JL
#22
#23
It was a built block with high HP so I had to rebuild it with all new pistons,bearings.Had to have the head redone too.
The worst part is the motor only had about 5000 miles on it!
The heads,cams and springs were new and a bran new Comp spring broke. That's what did the damage.
Oh yeah,,,,and NO help from CompCams for any of the rebuild!
#24
JL
#25
Thanks guys for all the input. I tried to be in denial and think I could just clean it up, replace the cam follower & lash adjuster and would be ok. This evening I discovered that 4 bolts on 2 camshaft caps were so loose I took them out with my fingers. The caps were scored so bad they are lined with metal shavings. Also where the camshaft mates up with the head is full of shavings.
I think at this point the whole motor is probably full of shavings and I would be better off to replace the motor. The head replacement is only about 400.00 from what I saw but I dont want to have problems later with the other side. Its obvious the head got very hot and little oil so other side may be in bad shape also. IDK.
I friend found a 98 4.6 that is in a wrecked Expedition for 750.00. Says the motor is not hurt. Asked me if mine is 6 or 8 bolt flywheel and IDK. From my VIN, 8th digit is 6 and 10th is W. From what I read this engine could be either 6 or 8 bolt flywheel.If I read correctly, it doesnt matter which bolt pattern but I may have to replace the plate from the transmission to engine in order for it to work.
I think at this point the whole motor is probably full of shavings and I would be better off to replace the motor. The head replacement is only about 400.00 from what I saw but I dont want to have problems later with the other side. Its obvious the head got very hot and little oil so other side may be in bad shape also. IDK.
I friend found a 98 4.6 that is in a wrecked Expedition for 750.00. Says the motor is not hurt. Asked me if mine is 6 or 8 bolt flywheel and IDK. From my VIN, 8th digit is 6 and 10th is W. From what I read this engine could be either 6 or 8 bolt flywheel.If I read correctly, it doesnt matter which bolt pattern but I may have to replace the plate from the transmission to engine in order for it to work.
#26
Probably not-the oil is filtered before the oil flow gets to the crankshaft.A couple of years ago, I tore apart a 4.6L (the one with the ported heads) that had a oiling issue, and it was FAR worse than that-the camshaft would rattle around in the bores,and the oil pump was full of debris,but none of it got past the filter. We replaced the bearings since that one sees 7000+ rpms regularly,but the crank was still perfect.
JL
JL
#27
Thanks guys for all the input. I tried to be in denial and think I could just clean it up, replace the cam follower & lash adjuster and would be ok. This evening I discovered that 4 bolts on 2 camshaft caps were so loose I took them out with my fingers. The caps were scored so bad they are lined with metal shavings. Also where the camshaft mates up with the head is full of shavings.
I think at this point the whole motor is probably full of shavings and I would be better off to replace the motor. The head replacement is only about 400.00 from what I saw but I dont want to have problems later with the other side. Its obvious the head got very hot and little oil so other side may be in bad shape also. IDK.
I friend found a 98 4.6 that is in a wrecked Expedition for 750.00. Says the motor is not hurt. Asked me if mine is 6 or 8 bolt flywheel and IDK. From my VIN, 8th digit is 6 and 10th is W. From what I read this engine could be either 6 or 8 bolt flywheel.If I read correctly, it doesnt matter which bolt pattern but I may have to replace the plate from the transmission to engine in order for it to work.
I think at this point the whole motor is probably full of shavings and I would be better off to replace the motor. The head replacement is only about 400.00 from what I saw but I dont want to have problems later with the other side. Its obvious the head got very hot and little oil so other side may be in bad shape also. IDK.
I friend found a 98 4.6 that is in a wrecked Expedition for 750.00. Says the motor is not hurt. Asked me if mine is 6 or 8 bolt flywheel and IDK. From my VIN, 8th digit is 6 and 10th is W. From what I read this engine could be either 6 or 8 bolt flywheel.If I read correctly, it doesnt matter which bolt pattern but I may have to replace the plate from the transmission to engine in order for it to work.
#28
JL
#30
JL