6 replies to this topic

[rally1380]

(Apology's if this has been discussed before....I've started this thread on another forum, and thought i'd get the opinion on here too.....there are more experts on here!!!!)

 

 

Bit of a wide ranging question this as it is relevant to every engine build......as per title really, when (if ever) do you use a thread lock solution (Loctite as an example) on nuts and bolts inside an engine?
 

About to start doing final assembly and want to know whether or not to use the stuff on bolts like main caps and big ends (as an example). I know there wasn't any on them originally, but seeing as some fixings do like to shake loose over time (not that I've ever had a main cap bolt come loose) is it best to apply some blue gloop whilst assembling or can this affect the torqueing process?

Cheers

 

[Spider]

I don't use a thread locker on much inside the engine. Off hand, the Cam Nut, The Harmonic Damper Bolt, Flywheel Bolt - basically the stuff that had the locktabs from the factory and I no longer use the locktabs.

 

The other fasteners, I clean the threads with thinners and either oil them or use ARP's lube as appropriate.

 

I also use locitie on all the plugs too, not as a locker, but a sealant,

[Ethel]

... so ones that are in the centre of spinning bits and are at risk of being unscrewed. Ones that hold static bits together rely on tension to keep them in place and resist fatigue from being stretched. The correct tension is a product of the fitting torque which will rely on the correct, or lack of any, lube.

[Mini Manannán]

 

 

I also use loctite on all the plugs too, not as a locker, but a sealant,

 

The spark plugs Chris? 

[GraemeC]

Core plugs I would presume

[Spider]

 

 

 

I also use loctite on all the plugs too, not as a locker, but a sealant,

 

The spark plugs Chris? 

 

 

Bhahaha,,, nah, not the spark plugs mate.

 

The Freeze Plugs and Oil Gallery Plugs. Also, the Oil Switch / Gauge Adaptor too.

[Mini Manannán]

 

 

 

 

I also use loctite on all the plugs too, not as a locker, but a sealant,

 

The spark plugs Chris? 

 

 

Bhahaha,,, nah, not the spark plugs mate.

 

The Freeze Plugs and Oil Gallery Plugs. Also, the Oil Switch / Gauge Adaptor too.

 

 

Thought that was a bit extreme, even for you Chris!!!