BIG trouble
Thread Starter
|
New User
Joined: Sep 2003
Posts: 10
Likes: 0
BIG trouble
What started out as a typical Saturday morning tune-up has ended up in disaster.
Here's the story, went out this morning to change the plugs on my '96 F350 (351), all's well till two of them snapped off. OK, not a huge deal, I get the wheel well liner out (pass. side) so I got a clear shot at the two plugs. I get them out with good old fashioned Yankee ingenuity. I knew it would be dangerous but I took a drift and punched the remaining porcelain core out, cleaned it up as good as I could, drove a four sided screw remover in and fashioned a socket to fit over it. With a little heat and PB Blaster I get them both out. I send a magnet down the hole for any stray pieces, vaccum the crap out of the CC, put everything back together. I go and fire it up and %*@$, nasty sounds!
I'm thinking something got sucked up into one of the valves, piece of porcelain, the electrode, whatever.
Anyone ever done this before?
I guess I'm looking at a teardown of that side of the engine, maybe a bent valve or something. Problem is this project is probably over my head. I've only done a head swap once, 20 years ago, on an old LTD.
Here's the story, went out this morning to change the plugs on my '96 F350 (351), all's well till two of them snapped off. OK, not a huge deal, I get the wheel well liner out (pass. side) so I got a clear shot at the two plugs. I get them out with good old fashioned Yankee ingenuity. I knew it would be dangerous but I took a drift and punched the remaining porcelain core out, cleaned it up as good as I could, drove a four sided screw remover in and fashioned a socket to fit over it. With a little heat and PB Blaster I get them both out. I send a magnet down the hole for any stray pieces, vaccum the crap out of the CC, put everything back together. I go and fire it up and %*@$, nasty sounds!
I'm thinking something got sucked up into one of the valves, piece of porcelain, the electrode, whatever.
Anyone ever done this before?
I guess I'm looking at a teardown of that side of the engine, maybe a bent valve or something. Problem is this project is probably over my head. I've only done a head swap once, 20 years ago, on an old LTD.
Posting Guru
Joined: Jan 2002
Posts: 1,346
Likes: 8
From: Baltimore
Sounds like the damage is already done.
I'd remove the spark plugs from the damaged cylinders, disconnect the coil and crank the engine.
Place a rag over over the area to catch any flying debri.
If you know anyone that has a borescope, it would allow you to look inside the cylinder.
I'd remove the spark plugs from the damaged cylinders, disconnect the coil and crank the engine.
Place a rag over over the area to catch any flying debri.
If you know anyone that has a borescope, it would allow you to look inside the cylinder.
Posting Guru
Joined: Jan 2002
Posts: 1,346
Likes: 8
From: Baltimore
Hard saying what damage was done.
Since you heard some weird noise, there must be some debri in the cylinder. I would try to get any debri out of the cylinder. That's why I recommended cranking the engine with the spark plugs out and coil wire disconnected.
Maybe it will blow the debri out of the combustion chamber.
If you get the debri out, reinstall the spark plugs and start the engine and see how it runs.
Yes you could have bent a valve, scored the cylinder wall or even damaged the piston.
Since you heard some weird noise, there must be some debri in the cylinder. I would try to get any debri out of the cylinder. That's why I recommended cranking the engine with the spark plugs out and coil wire disconnected.
Maybe it will blow the debri out of the combustion chamber.
If you get the debri out, reinstall the spark plugs and start the engine and see how it runs.
Yes you could have bent a valve, scored the cylinder wall or even damaged the piston.
Thread
Thread Starter
Forum
Replies
Last Post
rferoni
2004 - 2008 F150
17
Jan 8, 2010 02:49 PM
