6.9l glow plug problem
Thread Starter
|
Senior User
Joined: Mar 2013
Posts: 219
Likes: 0
6.9l glow plug problem
hello everybody i just bought a 84 ford f250 6.9 and they said it was hard to start. so i started changing glow plugs and one i had a problem with.i needed to rewire because the wire was slit and i thought it as corroded but i tryed it and it fired right up and i tryed it again alittle bit later and it would not start just fire and i got told it was on fire around the glow plug and the wire on the inner fender was burnt and i went and changed that glow plug (only changed the bad ones) and i ran into this. i was wondering if i should worry about this. and do i have to pull the head.thank you
Elder User
Joined: Nov 2013
Posts: 627
Likes: 0
From: Manteca
Well it doesn't look like a fresh break. I also ran into the same problem when I was changing my glow plugs as well... I ended up pulling the driver side head because I did not have the piston at TDC to catch the broken tip. you can try and rotate the engine over by hand to see if there is a broken peace in there, if it doesn't rotate over by hand then you know you have a broken tip in the cylinder.. I will find my thread about the glow plug and post it here in a few
https://www.ford-trucks.com/forums/s...058&styleid=20
^^^^^^^^^^^^^^
Found it! Lol there's some other good information in there as well and you will see what kind of damage is done if you start the engine with the glow plug tip still in there. The previous owner of my truck got lucky and didn't blow a hole in the piston
https://www.ford-trucks.com/forums/s...058&styleid=20
^^^^^^^^^^^^^^
Found it! Lol there's some other good information in there as well and you will see what kind of damage is done if you start the engine with the glow plug tip still in there. The previous owner of my truck got lucky and didn't blow a hole in the piston
Thread Starter
|
Senior User
Joined: Mar 2013
Posts: 219
Likes: 0
Well it doesn't look like a fresh break. I also ran into the same problem when I was changing my glow plugs as well... I ended up pulling the driver side head because I did not have the piston at TDC to catch the broken tip. you can try and rotate the engine over by hand to see if there is a broken peace in there, if it doesn't rotate over by hand then you know you have a broken tip in the cylinder.. I will find my thread about the glow plug and post it here in a few
glow plug install 6.9 - Ford Truck Enthusiasts Forums
^^^^^^^^^^^^^^
Found it! Lol there's some other good information in there as well and you will see what kind of damage is done if you start the engine with the glow plug tip still in there. The previous owner of my truck got lucky and didn't blow a hole in the piston
glow plug install 6.9 - Ford Truck Enthusiasts Forums
^^^^^^^^^^^^^^
Found it! Lol there's some other good information in there as well and you will see what kind of damage is done if you start the engine with the glow plug tip still in there. The previous owner of my truck got lucky and didn't blow a hole in the piston
t
Elder User
Joined: Nov 2013
Posts: 627
Likes: 0
From: Manteca
You know I didn't even think about that, I have a few of those still laying around! Now what would you fill the center with? Might be a good idea lol because that is how I still time mine
Thread Starter
|
Senior User
Joined: Mar 2013
Posts: 219
Likes: 0
Trending Topics
Logistics Pro
Joined: Apr 2005
Posts: 4,221
Likes: 17
That's a good question. I've heard of people turning old GPs into Lumy's, but I have no clue what they are putting in them.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Logistics Pro
Joined: Apr 2005
Posts: 4,221
Likes: 17
That's really a tough call to make. If that tip just incinerated into ash then there's no issue. If it dropped off intact there could be a problem.
If it was me I'd take the chance as it looks like the tip burned off. But then I take gambles sometimes so that call really is up to you.
Thread Starter
|
Senior User
Joined: Mar 2013
Posts: 219
Likes: 0
good news i talked to a diesel shop they said said anything that if the brake is anything over 1/8 of an inch will do damage. Since i had no where close i turned it over and no noise so i fired it up and its runs great. No more hard start. Thanks every one
Logistics Pro
Joined: Apr 2005
Posts: 4,221
Likes: 17
Well that's absurd, chalk that up as another 'shop' that doesn't know what they're talking about. There is no specific size of any piece of metal that's allowable in the piston area, ANY chunk of ANY size that gets wedged between a piston and the cylinder wall will cause major damage.
Thread
Thread Starter
Forum
Replies
Last Post
Catlan Zuliani
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
25
Nov 18, 2018 11:43 PM
Willfredo
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
4
Feb 25, 2017 10:33 PM
switchback05
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
5
May 28, 2008 12:38 PM