New hard bolts required?

[mark123]

Do you need to get new cylinder head bolts when refitting the head?

Ktec web site says yes.

Renault manual says maybe - "The bolts can be re-used if the length under the head does not exceed 117.7 mm (otherwise change all the
bolts)."

Title should read head bolts BTW

 

[Chapster5]

I would it wouldn't hurt to have new ones fitted for peace of mind mate.

 

[jack_davey]

I've never had a head off one, however it sounds a bit like the crank pulley bolt when changing the belts, I've always just replaced it as it only costs around £7 and you cant measure the bugger until you've removed it anyway.

On a rover k series however I would always replace the head bolts regardless, but I think it was on a vauxhall XE engine you only had to replace the washers on the head bolts.

 

[Chip-mk1]

I've never had a head off one, however it sounds a bit like the crank pulley bolt when changing the belts, I've always just replaced it as it only costs around £7 and you cant measure the bugger until you've removed it anyway.

On a rover k series however I would always replace the head bolts regardless, but I think it was on a vauxhall XE engine you only had to replace the washers on the head bolts.

Vauxhall XE is a stretch bolt engine and they MUST be replaced.
Unless running aftermarket ARP stud and nut or similar.

 

[Chip-mk1]

Do you need to get new cylinder head bolts when refitting the head?

Ktec web site says yes.

Renault manual says maybe - "The bolts can be re-used if the length under the head does not exceed 117.7 mm (otherwise change all the
bolts)."

Title should read head bolts BTW

If you are talking 70K and 10 year old original ones then I wouldnt even consider it, if you have only recently fitted them for some reason then measure them and take your chances if you like.