2005 400ex spark plug problem

[poke_53]

I have a 2005 400ex and I somehow stripped out the threads in the head where the spark plug goes in. My spark plug will just spin. Any suggestions?


Thanks

[400exrider989]

new head is my best guess
by the way spark plugs only need to be a little tight

[my88r]

no need to wrench them down. time for a new head.

[dpizz450]

try gettin a thread repair kit from somehwere like napa auto parts. i know they make ones special for spark plugs.

[Flyin-Low]

You can Helicoil it.. not exactly sure on how it's done but ask at your local autoshop, they'll have the answer. No need for a whole new head because of a couple stripped threads lol.

[Kickstarts-suck]

Try helicoil and if that doesn't work your might have to look into a new head :ermm:

[dpizz450]

Originally posted by Flyin-Low
You can Helicoil it.. not exactly sure on how it's done but ask at your local autoshop, they'll have the answer. No need for a whole new head because of a couple stripped threads lol.

yeah thats the word i was looking for helicoil. we have them at napa and im sure any other auto parts store.

[poke_53]

It stripped coming out not going in. That is what is wierd about this whole thing. Thanks for the input guys.

Thanks

[Kickstarts-suck]

Originally posted by poke_53
It stripped coming out not going in. That is what is wierd about this whole thing. Thanks for the input guys.

Thanks

huh :huh

[pods_BMOC]

Tap and Die Set.

[f4istunna]

they have spark plug repair kits at the autoparts stores like said above (helicoils or timeserts) id try that first.


Or i have this for you....

[poke_53]

How much for the head.

[f4istunna]

Id take $175 shipping included in the states for it. From great running low hour 04

[400exrapes]

i think your not pushing hard enough, my spark plug used to spin for so long and it wouldnt tighten but that was only because i wasnt pushing hard enough. I'm pretty sure your threads arent stripped just that you dont have the plug lined up in the hole.

[400exrider707]

Originally posted by poke_53
It stripped coming out not going in. That is what is wierd about this whole thing. Thanks for the input guys.

Thanks

That is usually how it does it. If you cross thread it going in, the threads on the bolt (or in this case the spark plug) actually cut the threads in the nut(your head) on the way out. I'm not sure if I'd trust a heli-coil, but its worth a shot I guess before you drop the coin on a new head

[f4istunna]

Ive had good luck w/ helicoils. They actually use timeserts as a permanent fix to caddy's northstar motor. The head studs pull just like the 440ex have a tendency to do.

the helicoil kit isnt cheap but if you know someone that has the kit you could just buy the inserts and save some $$

[pods_BMOC]

good luck

[hess442]

ive helicoiled the longer head bolt and its holdin up real good. id say to try that first. its only about 7 dollars for the kit

[f4istunna]

where did you get the helicoil kit for $7 ??:eek2:

[hess442]

alright it might have been alittle more but it was still under $20. it was over the summer and i think i got it from advanced auto parts down the road from me