400 Valve SpringMy #7
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5th Wheeling
Joined: Oct 2023
Posts: 32
Likes: 2
400 Valve SpringMy #7
My #7 exhaust spring broke, the pishrod fell down and is lating across the lifters.
I think I can get it out with a magnett. Asd for the spring, wgat do I replace it with. I don't know what size, pressure etc.
I think I can get it out with a magnett. Asd for the spring, wgat do I replace it with. I don't know what size, pressure etc.
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5th Wheeling
Joined: Oct 2023
Posts: 32
Likes: 2
Right where it should be. I fished out the pushrod, bent, nut the valve is still sitting in its spot. I ordered a new stock exhaust spring and a few pushrods. I don't know the history of the engine, it's in a 66 F100 I just bought. The seller said engone needs rebuild. It looks like the puishrod and spring are the only problems. Fingers crossed.
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5th Wheeling
Joined: Oct 2023
Posts: 32
Likes: 2
Removed bent pushrod
and installed new spring. Starts and runs fine but I’m going to pull the covers and inspect everything. One thing puzzles me, the pushrods have no hole for oil. Many sellers have pushrods with little holes presumably for oil, this motor has rods with no holes. Which is correct?
Hotshot
Joined: Jul 2020
Posts: 10,456
Likes: 2,630
From: Near Salt Lake City
Your 400 needs hollow pushrods with oil traveling up through the center to lube the rocker arms
When they get worn pretty bad the oil hole sometimes gets rounded over and the oil hole disappears
The only Ford I am aware of that has no pushrod oiling provision is the FE series 352-428
They have a hardened steel ball on the end of the pushrods and shaft mounted rockers with provision for oil through the rocker shaft
Was your motor clacking pretty good?
I think you have a few worn pushrods maybe.
There is a little holr in each rocker where the pushrod sits right?
That is the oil hole for the rocker fulcrum. It needs a hollow pushrod
Good luck
Take a pointy pick tool and see if the hole opens up on a few
When they get worn pretty bad the oil hole sometimes gets rounded over and the oil hole disappears
The only Ford I am aware of that has no pushrod oiling provision is the FE series 352-428
They have a hardened steel ball on the end of the pushrods and shaft mounted rockers with provision for oil through the rocker shaft
Was your motor clacking pretty good?
I think you have a few worn pushrods maybe.
There is a little holr in each rocker where the pushrod sits right?
That is the oil hole for the rocker fulcrum. It needs a hollow pushrod
Good luck
Take a pointy pick tool and see if the hole opens up on a few
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5th Wheeling
Joined: Oct 2023
Posts: 32
Likes: 2
Yes, little hole in rocker
Your 400 needs hollow pushrods with oil traveling up through the center to lube the rocker arms
When they get worn pretty bad the oil hole sometimes gets rounded over and the oil hole disappears
The only Ford I am aware of that has no pushrod oiling provision is the FE series 352-428
They have a hardened steel ball on the end of the pushrods and shaft mounted rockers with provision for oil through the rocker shaft
Was your motor clacking pretty good?
I think you have a few worn pushrods maybe.
There is a little holr in each rocker where the pushrod sits right?
That is the oil hole for the rocker fulcrum. It needs a hollow pushrod
Good luck
Take a pointy pick tool and see if the hole opens up on a few
When they get worn pretty bad the oil hole sometimes gets rounded over and the oil hole disappears
The only Ford I am aware of that has no pushrod oiling provision is the FE series 352-428
They have a hardened steel ball on the end of the pushrods and shaft mounted rockers with provision for oil through the rocker shaft
Was your motor clacking pretty good?
I think you have a few worn pushrods maybe.
There is a little holr in each rocker where the pushrod sits right?
That is the oil hole for the rocker fulcrum. It needs a hollow pushrod
Good luck
Take a pointy pick tool and see if the hole opens up on a few
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Hotshot
Joined: Jul 2020
Posts: 10,456
Likes: 2,630
From: Near Salt Lake City
Their listing must be wrong
Go on the autozone website and look at 351 and 400 M pushrods, they will be hollow and have a hardened ball with a hole in it on both ends
Shows MPR 310 and it has a hole
Maybe they installed the wrong hardened ***** in yours or they were mis boxed?
Either way your 400 needs oil to come through the pushrod
Go on the autozone website and look at 351 and 400 M pushrods, they will be hollow and have a hardened ball with a hole in it on both ends
Shows MPR 310 and it has a hole
Maybe they installed the wrong hardened ***** in yours or they were mis boxed?
Either way your 400 needs oil to come through the pushrod
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5th Wheeling
Joined: Oct 2023
Posts: 32
Likes: 2
All is right
runs and drives. Took it for maiden voyage. It died after 1.5 mikes. 12 volt sup to distro came disconnected. Fixed it and now I’m having a whisk at my favorite lounge. F 100 proudly parked out front. Everyone stops and admires.
😂👍
😂👍
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