sparkplugs won't stay tight

[John H]

01 4.0,I been having trouble with the #4 & #3 not staying tight(#3 is worst one) seems like im tightening them every 2 weeks. Any way i can fix this without removing the head? My dad suggested loctite but i don't think that is a good idea

 

[06RangerXLT]

yea blue loctite is your best bet. red needs heat to be removed i believe. so go blue. it wont hurt anything

 

[sholzy]

yea blue loctite is your best bet. red needs heat to be removed i believe. so go blue. it wont hurt anything

Red needs like over 400* to free it. How hot does a cylinder head get? Won't need more than a drop or two of the blue. The perfect amount will be the least amount needed to do the job right.

 

[06RangerXLT]

Red needs like over 400* to free it. How hot does a cylinder head get? Won't need more than a drop or two of the blue. The perfect amount will be the least amount needed to do the job right.

id go with blue. idk how hot they get but i wouldnt chance it.

 

[Ranger44]

I'd check out those threads.

Them backing out isn't right.....

 

[alwaysFlOoReD]

Make sure you have the correct spark-plugs.

Richard