Spark Plugs keep coming loose...

[ironmule]

plugs

if the threads ever get stretched you have to weld up hole redrill and tap that is if someone put the plugs in so tight like it never had to be changed try not putting on washer and see if helps? sounds to me like it is screwed

 

[5.0Flareside]

if the threads ever get stretched you have to weld up hole redrill and tap that is if someone put the plugs in so tight like it never had to be changed try not putting on washer and see if helps? sounds to me like it is screwed

ok... well im not horribly worried bout it, its not gonna be like this for long...

 

[95F350XL]

That is really strange, id say you might not be making them tight enough. You can put some lock-tight on em, you will be fine gettin em out again. How often do you change your plugs? Platumns are like 100K plugs. I wouldnt waste time with coppers even tho im opening up a can of worms with this comment.

 

[5.0Flareside]

coppers every 10k miles... i know typically its 30k but i like to keep my maintenance up...

and Platinums typically suck *** in 302's & 351W's.... IMHO... sorry..

 

[95F350XL]

Sadly I have ran the same plugs in my 88 bronk for the past 2 years ive had it. Im a mechanic and we dont use coppers anymore. They just dont last long enough. I got platimuns in all my 302/351's, even the 347 stroker in the stang. All run like champs. Here is a funny story. Did plugs in a 03 E150 with a 4.6L 220K on the orig plat plugs. Finally started missing with that mileage. Im sold lol.

 

[5.0Flareside]

ive never had that kind of luck with Plats..... they have always eat up and pewped out on me with in 5k miles.... dont know why.. this is in my old 302 and my Flaresides 351W.....

 

[95F350XL]

Thats wierd. Id Give them plugs a good crank till you get the other motor done.

 

[5.0Flareside]

Thats wierd. Id Give them plugs a good crank till you get the other motor done.

thats what im doing...


the dam thing is this engines been doing it every plug change since i've had it... 3 plug changes..

 

[Fordzilla80]

Lemon heads.

Sounds like the P.O. passed a problem they had onto you.

 

[5.0Flareside]

there are a few things that are popping up here and there that were so-so repairs when he had the truck...

 

[flareside_thunder]

The mod motors call for plats via the factory.....these smallblocks typically ask for coppers but I only use NGK's.

 

[LEB Ben]

Sounds like ya aint gettin em tight enough. Id quit usin the anti sieze on em and crank em down good but dont kill em. Ive had some very tight spark plugs before and havent stripped one yet. Also helps to go back and re tighten em after a heat cycle or two.

This is exactly my thought as well. And if you're changing your spark plugs every 10k...what's the point in anti-seize?

 

[dragogt]

I don't even use anti seize on Iron heads...

Aluminum yes Iron no.....

 

[gsxr1238]

Chase the threads with a tap.Tighten the plugs to 15 lb.ft.Anti seize is always good insurance when clamping two disimilar metals together(iron bolts in an aluminum intake)to cut down corrosion,and always used where heat(spark plugs,header bolts,etc.)is a consideration.Also look for any distortion in the plug hole seat.

 

[95F350XL]

I use antiseize on every bolt i take out and put back in. Ever take plugs outta an iron head in the salt belt? Took me 2 weeks to get all 8 plugs outta my F350 when I 1st got em, the plugs had rusted to the heads, was unreal.

 

[73F100Shortbed]

Ditch the anti-sieze and stop tightening them like a girl

 

[Fordzilla80]

Ditch the anti-sieze and stop tightening them like a girl

The Corsica made him weak!!!

 

[73F100Shortbed]

The Corsica made him weak!!!

Hahaha and you would think that since he left ann without a car for so long that his right hand would be pretty strong by now.

 

[Fordzilla80]

Hahaha and you would think that since he left ann without a car for so long that his right hand would be pretty strong by now.

Wrong arm, but we get the point.

 

[Ridgerunner]

Wrong arm, but we get the point.

So Shaun are you saying you are a Lefty????