Why can't a job ever go smooth??? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 11 (permalink) Old 02-28-2009, 09:31 PM Thread Starter
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Why can't a job ever go smooth???

Well, apparently when the drives side head was replaced by the previous owner the rear drivers side fuel plug hole was cross threaded. When I installed the fitting today, it went straight in no problems, but couldn't get it to stop leaking. Put a mirror back there and it's sitting crooked. Any ideas for in truck fixes? I know the right thing would be to pull the head and drill and re-tap or heli-coil it, but that's not really a feasible option. Is there anything besides JB weld that you guys might recommend? Does that thread repair stuff they parts stores have work?


1999.5 F-250 XLT Crew Cab Short Box
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post #2 of 11 (permalink) Old 02-28-2009, 09:34 PM
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Re: Why can't a job ever go smooth???

See my reply on APG!

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post #3 of 11 (permalink) Old 02-28-2009, 09:40 PM
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Re: Why can't a job ever go smooth???

Locktite make a thread sealer that is permanent. Have to lookup the number though (471 I think - but must check).

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post #4 of 11 (permalink) Old 02-28-2009, 09:53 PM
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Re: Why can't a job ever go smooth???

Same thing I was going to say Grumpy. Helicoil in a tube.




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post #5 of 11 (permalink) Old 02-28-2009, 10:35 PM
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Re: Why can't a job ever go smooth???

Teflon tape with a few extra wraps should stop it.
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post #6 of 11 (permalink) Old 02-28-2009, 11:04 PM Thread Starter
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Re: Why can't a job ever go smooth???

Well....it wasn't cross threaded. Turns out those fittings are not at a 90 from the head from the factory. That's the good news....

Bad news is the head is cracked. It's cracked on the back and the engine side of the head from the fuel fitting hole to the outside of the head, that's where it's seeping out. Not sure what's gonna happen. About the only thing I can think of is to try and JBweld it, but I'm not sure if that's going to work either.


1999.5 F-250 XLT Crew Cab Short Box
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post #7 of 11 (permalink) Old 03-01-2009, 01:48 AM Thread Starter
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Re: Why can't a job ever go smooth???

Well, I made sure all the diesel was out, let it sit for a bit, sprayed the outside with carb/choke cleaner. Used a bunch of cue tips making sure all the diesel was out and let it sit to make sure I didn't get any residual. Used a bunch more cue tips and lacquer thinner to clean the outside of the head and around the inside of the hole.

Mixed up some good ole' JB and put some on the fitting, screwed the fitting into the hole and got it tight. Spread some JB onto the crack and tried to push it in. Spread a patch around the entire corner where that fitting is at and put it about an inch away from the crack in all directions. If any fuel gets into the crack, I'm hoping the "patch" will hold to the head and give a good seal.

Going to wait at least 12 hours before I try and prime the system again. Just sucks cuz I have my uppies waiting to go in. Figured it would be pointless to do all that work if the JB doesn't do the trick so might not get the truck done this weekend. Oh well.....crap happens, just plug along and try to make it work.


1999.5 F-250 XLT Crew Cab Short Box
4X4 7.3L Powerstroke
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post #8 of 11 (permalink) Old 03-01-2009, 06:07 AM
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Re: Why can't a job ever go smooth???

Oh $hit. Hope it works. It should, I think.

Probably pretty much your thoughts also.




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post #9 of 11 (permalink) Old 03-01-2009, 06:25 PM Thread Starter
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Re: Why can't a job ever go smooth???

Well, went out to try and prime the system today and it helped quite a bit, but didn't cure it. I am now waiting for the fuel to quite seeping out of the rail. I am going to use some of the quick set JB weld to try and fill in the one spot that is still seeping. We'll see.....


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post #10 of 11 (permalink) Old 03-01-2009, 08:38 PM
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Re: Why can't a job ever go smooth???

Man that sucks hope you can get it sealed up.

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Lots of go fast parts and still slow.

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Frame is a little shorter now
workin on body
engine build underway


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