Welding oil feed off head shut

[dffusion20]

I have kinda dug myself into a hole here. I was putting on a head fed oil line and stripped out the hole... No biggie, I went and bough a heli coil and didnt have the drill perfectly straight, so I ended up cross threading it and just making it even worse. So I was able to squeeze a brass pipe fitting with jb weld on the threads into the head and I guess because of heat cycles we are still leaking. I have tried jb weld around the fitting as well and I'm still leaking a little bit. I was just going to run a restrictor off my filter housing and weld the head feed shut, but the weld shop that I have do most my things said that the frequencies given off the welder through the head would damage my ecu. Even if I took it out including the battery. Is this true? I cant take the head off bc its my DD.
Sorry if this was supposed to be in engine head, block section...

 

[95gst16g]

How would it ruin something if its not even in the car? I don't think so...

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[ramsack]

No, if you took the ECU out it wouldn't ruin it. But there are other "computers" throughout the car that could be ruined just as easily. I really don't see how anything could be damaged because it's the ground of the car. A lot of stuff that are connected to the ground of a car generate high voltages that could damage stuff by ESD.

 

[dffusion20]

Ok cool, glad to see were on the same page here...

 

[Boosted98gsx]

You could weld a bung in there..

 

[JusMX141]

I like Andrew's idea....get an aluminum 1/8" NPT to -4AN fitting and weld it into the corner of the head.

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[dffusion20]

not a bad idea... I already have a brass one in there. I guess I could just yank it out, try and clean as much jb weld that was in there as possible and then get it welded in. I already have an inline filter so that could work!

 

[ramsack]

I'm wondering why JB weld didn't seal things up...makes me think there is cracking going on, or one didn't clean the surfaces all the way, or wait for it to cure all the way.

 

[dffusion20]

Yea I cleaned it. I cleaned it with lighter fluid on a cue tip and sanded the surfaces down too... its nothing major but still annoying. And I let the weld cure over 24 hours

 

[ramsack]

If by lighter fluid you mean the stuff you put into a zippo lighter, it's petroleum (basically kerosene and other heavy hydrocarbons) and will leave an oily residue in the metal.

 

[95gst16g]

For cleaning stuff like that do yourself a favor and go buy some brake cleaner...works good.that's how I clean the surface of my block and head after I get all the gasket stuff off of it.

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[1gcrazy]

Brake Kleen is retarded. Thats stuff will eat through anything!

 

[ramsack]

Brake parts cleaner will eat through stuff polystyrene. It doesn't do a damn thing to metal. It can make some rubbers swell up and kind of break down, too. Working on cars is more than knowing how to read what bolts take what torque, it's also knowing what certain chemicals are used for. Lubricants are a HUGE part of that. Solvents, not so much. People don't fix or clean shit anymore, they just replace it.

 

[95gst16g]

Brake Kleen is retarded. Thats stuff will eat through anything!

Yeah when I was doing my head about a week ago it was freezing outside and I was in the garage with a heater so I didn't freeze my ass off...well I was cleaning the head and block surfaces and my buddy opened the door and walked in and was like holy shit man it smelled so bad....I had no clue until I walked out and back inside wow I'm glad he walked in I would have probably died in there! Make sure to do it OUTSIDE! haha

Ramsack...we must go to lunch at the same time unless you just stay on here and post all day.
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[ramsack]

I used to wash my hands and arms with brake parts cleaner, I would always get it in my eyes and get lungs full of vapors that I could feel inside my lungs, kind of a suffocating feeling. I'm still here.

 

[Eeeeky]

Sounds like your welder is an idiot with electronics. Im a tig welder, and have welded MANY things in the car (with a tig) with everything connected, and never hurt anything. The whole car is grounded to itself. Your not going to hurt anything.

 

[ramsack]

The car is not grounded to anything, because the rubber tires insulate it from ground. You can swing on power lines all day and be fine as long as you don't get close enough to something else that is of neutral, grounded, or opposite potential to cause an arc.

 

[Eeeeky]

I didnt mean grounded to the ground...Hah. I meant the engine is grounded to the frame, the ecu is grounded, everything is grounded within the car is what i meant.

 

[olddsmer]

I think the head is cast aluminum and the nipple or whatever you have in there is steel.They probably both react different to the heat that is created and causing your leak. They probably expand and contract at different rates.


Regards
Greg

 

[Boosted98gsx]

If by lighter fluid you mean the stuff you put into a zippo lighter, it's petroleum (basically kerosene and other heavy hydrocarbons) and will leave an oily residue in the metal.

Must use ACETONE