Had a head bolt fail on me today (pic inside)
Luckily i realised it was about to fail before things turned serious.
Its a brand new Heavy Duty ZVH conversion bolt rated at 12.9
When i got to 30lb torque i could feel something was not quite right so took it out.

Could have been a right pain if it had of snapped.
Its a brand new Heavy Duty ZVH conversion bolt rated at 12.9
When i got to 30lb torque i could feel something was not quite right so took it out.

Could have been a right pain if it had of snapped.
Yeah was properly oiled,
Cleaned and tapped the thread in the block first etc as well, made sure there was no oil or water to give me hydralic problems either,
Must have just been a dodgy bolt as ive had loads of these in the past and never a problem.
Sorry, peteh had put it on my white worktop with flash on.
Matt.
Cleaned and tapped the thread in the block first etc as well, made sure there was no oil or water to give me hydralic problems either,
Must have just been a dodgy bolt as ive had loads of these in the past and never a problem.
Sorry, peteh had put it on my white worktop with flash on.
Matt.
Originally Posted by zvhturbo
Sorry, peteh had put it on my white worktop with flash on.
Matt.
Matt.
Trending Topics
I've just phoned the supplier (i won't name them!!)
They basically didn't care, just said send it back and we will take a look at it.
Christ i'm worried i could have one totally snap and it will then be engine out time
They basically didn't care, just said send it back and we will take a look at it.
Christ i'm worried i could have one totally snap and it will then be engine out time
Thread
Thread Starter
Forum
Replies
Last Post
JoeyBoyden
General Car Related Discussion.
14
Aug 15, 2015 09:51 PM
track.focus'd
Restorations, Rebuilds & Projects.
26
Aug 12, 2015 05:53 PM



ouch, looks like it's in one of those crazy mirror rooms like you get at the fair
