rocker arm spring?

datdrift · #1 25-08-2006, 16:04

you really think its worth helicoiling all of them

i might just threadlock them back in? i will probbaly change the rocker shaft tho as ive got loads of spare heads, etc
it seems to be doing alright at the moment, ive done over 100miles with it, don't think its seen the redline yet, but probably hasent been far off

JackieFan · #2 25-08-2006, 16:39

Loctite will only help the problem if it's caused by the bolts coming loose and vibrating the threads to bits. I think it's more likely that its beacuse the threads are stressed that they rip out.

sideways danny · #3 25-08-2006, 20:45

Quote:

Originally Posted by JackieFan

Loctite will only help the problem if it's caused by the bolts coming loose and vibrating the threads to bits. I think it's more likely that its beacuse the threads are stressed that they rip out.

Bang on IMO, too many revs, and it overloads the threads

datdrift · #4 26-08-2006, 08:56

ok well ive already got the helicoil kit thru - thanks for the speedy delivery northener

now ive just got to get a drill bit and have a go sometime this weekend.......
went out for a play in it last night and it held up alright, it did seem to be a bit more 'ticky' than usual, but thats probably just me noticing in more

PukkaSilvia · #5 29-08-2006, 01:23

valve clearances or bent/damaged rocker shaft may be causing it to be more ticky.....

30psi · #6 29-08-2006, 09:43

Probably the valve clearances need to be set.

Out of interest how did you stop the sward falling into the bottom of the head?

datdrift · #7 29-08-2006, 13:36

yeh i did check the valve clearances, the inlet valve on no1 which pop'd the rocker spring off was the most out so i tighened it a bit, the others seemed to be alright(ish

) but i'm not used to using a feeler gauge for anything other than sparkies so i don't know how accurate im being

i'm probably gonna do this tonight, just gotta find a 8.3mm drill bit......