Cylinder Block Studs

Fitting Cylinder Block Studs ok 2 nuts to tighten then up but do I use loctite ? I've heard some people say loctite them in & others say add grease so they can come out at a later date !

Hi

Use a thread sealant on then to assist getting a steam tight fit.

The steamseal ?

Oh

Is it the block to boiler or block to safety valves?

The hundreds of m6 studs into the cylinder block

Little bit of thread lock then just to keep them put

Some of the holes are 'through holes' into the steam ways of the cylinder block. These definitely need a thread sealer. I found PTFE tape very successful. Others are 'blind holes' and sealing is pointless. Very useful to be able to remove some of these studs at a later date in order to fix problems with items that attach to the cylinder block. Space for these activities can often be very limited and stud removal makes things a lot easier. eg Exhaust pipe to chimney base when the joint to cylinder block starts to leak.