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View Full Version : 400ex has crack in head!


Narly R
08-23-2003, 08:07 AM
My friends 400ex has a stripped head bolt on top of his motor, and he said it is leaking exuast. He is going to take it to our bike shop, which is the worst for fixing problems in the WORLD. I was woundering if he could just put some of that sealant in there that forms into a casket, and rethread the bolt, or does he need a new head? Please help!:confused:
nacs400ex
08-23-2003, 01:03 PM
Its worth a try, but I have a feeling your gunna ahve to get it fixed. I am sure a machine shop could do a temporary fixe as well.
08-23-2003, 02:22 PM
get a new bolt.
nakomis0
08-23-2003, 04:43 PM
Is it the very top of the motor, one of them 12 bolts that seals the top? Think its called the valve cover head or something.

Cause i broke one of them bolts before... just put some JB weld on it and then replaced the bolt like 1.5 yrs later when i did my rebuild.
Narly R
08-23-2003, 05:52 PM
Ok ill tell him jb weld might work. Any more ideas?:confused:
luvmyex
08-24-2003, 03:02 AM
THe best way is to go to nappa and buy a heli-coil.Cost around $40.You need a 6mm one.You drill the hole with whatever size its says (1/4 maybe i dont remember) Then twist the heli-coil into the hole and you can use the same size bolt. Order a new bolt from service honda.
08-24-2003, 04:08 AM
wait i thought this was about a cracked head:confused:
Narly R
08-24-2003, 05:17 AM
There is a crach in the head too, thats whay i was woundering if that sealant would work or jb weld, or if he needs a new head?
MOFO
08-24-2003, 08:18 AM
Originally posted by Narly R
There is a crach in the head too, thats whay i was woundering if that sealant would work or jb weld, or if he needs a new head?



If the head is cracked, get a new one. You can try using temporary fixes, but in the long run, it will crack again. Do it the right way, buy a new head.
Narly R
08-24-2003, 07:04 PM
Ok ya thgats prolly what he'll end up doin, how much do they cost?
luvmyex
08-25-2003, 04:16 AM
is it the hrad itself or the head cover? I have both if he needs it.
Narly R
08-25-2003, 06:01 AM
Im not egzacly shure he just told me about it I never saw it, um I hink it could be the head cover... Its the head on the very top of the engine thats about 2 inche sthick I think...:ermm:
luvmyex
08-25-2003, 08:17 AM
just happen to have a polished cover:D with rockers too.let me know.
08-25-2003, 08:20 AM
Sounds like we got some crack heads on this page for damn sure...:blah:


:devil: LMFAO
UglyMotha™
08-25-2003, 08:21 AM
Originally posted by Rico
Sounds like we got some crack heads on this page for damn sure...:blah:


:devil: LMFAO



that brought a tear to my eye, ROFLMAO :p
Narly R
08-25-2003, 08:49 AM
LMAO!:huh


ha ha
luvmyex
08-25-2003, 09:28 AM
does a pot head count?