Nifty Posted August 30, 2008 Share Posted August 30, 2008 I am fitting a "new" oil filter housing to my engine and wanted opinions on whether I need to put some threadlock on the bolts that fix it to the block. My concern is that if I do and then need to remove it again I may struggle to get the bolts out and possibly damage the bolt head and the thread in the process. On the other hand I don't want the filter housing coming lose ❗ ❗ 😳 *confused* Keep off the straight and narrow 😬 Link to comment Share on other sites More sharing options...
Irrelevant Posted August 30, 2008 Share Posted August 30, 2008 Drill the bolts and lockwire them if you don't want to use threadlock. Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted August 30, 2008 Share Posted August 30, 2008 Just put a couple of drops on the thread. Threadlock acts as anti-corrosion agent too. Link to comment Share on other sites More sharing options...
shn7 Posted August 30, 2008 Share Posted August 30, 2008 Why should you have problems getting them out having used thread lock Now stud/bearing lock may be a different matter. Steve. Sussex (West) AR Not forgetting Percy the Polar Bear Link to comment Share on other sites More sharing options...
Myles Posted August 30, 2008 Share Posted August 30, 2008 I can't recall threadlocking the bolts. My memory might be dodgy, but the only thing I can explicitly remember locking on the last rebuild was the s*dding big bolt holding the front pulley on.... Oh - and prop-bolts of course (although they used to be pre-locktighted). 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester Racing 7s Ecosse™ 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
oilyhands Posted August 31, 2008 Share Posted August 31, 2008 The only bolts you *need* to loctite are the flywheel bolts (this seals the threads to prevent oil from escaping) and any bolts inside the cambelt void, I.E. water pump, cambelt backplate, oil pump and cambelt tensioner. Bolts that have been fastened with blue loctite are not that hard to undo. The filter housing bolts should simply be torqued to the appropriate value although loctite cant do any harm it is unnecessary. Oily Link to comment Share on other sites More sharing options...
Nifty Posted August 31, 2008 Author Share Posted August 31, 2008 Cheers Dave Any idea what the official torque setting is please 🤔 Keep off the straight and narrow 😬 Edited by - Nifty on 31 Aug 2008 09:11:29 Link to comment Share on other sites More sharing options...
oilyhands Posted August 31, 2008 Share Posted August 31, 2008 10-12NM Oily Link to comment Share on other sites More sharing options...
Nifty Posted August 31, 2008 Author Share Posted August 31, 2008 Thanks again Dave Keep off the straight and narrow 😬 Link to comment Share on other sites More sharing options...
ashaughnessy Posted September 1, 2008 Share Posted September 1, 2008 Oily - what's the general principle behind your advice? It would be good to know how to apply this guidance to other situations. Anthony Link to comment Share on other sites More sharing options...
Dickie Normuss Posted September 1, 2008 Share Posted September 1, 2008 Does this not cover it? seals the threads to prevent oil from escaping VX HPC - Loud and proud here Watch out, whatever hits the fan will not be distributed evenly Link to comment Share on other sites More sharing options...
ashaughnessy Posted September 1, 2008 Share Posted September 1, 2008 > Does this not cover it? No it doesn't, unless preventing oil escaping from oil filled areas is the only principle involved in the use of loctite on threads. Anthony Link to comment Share on other sites More sharing options...
oilyhands Posted September 1, 2008 Share Posted September 1, 2008 It doesn't really cover it, the flywheel bolts are an unusual setup in as much as the holes are not blind as with the majority of fasteners, they are drilled right through the crank flange so that the end of the hole is swathed in pressurized oil exiting from the bearing which will wind down the bolt threads. My golden rule is that flyhweel bolts notwithstanding, most engine fasteners do not require loctite, however anything inside the cambelt void where a shed bolt will cause disaster or on the induction system where a shed fastener will be ingested is loctited as a matter of course. Oily Link to comment Share on other sites More sharing options...
ashaughnessy Posted September 1, 2008 Share Posted September 1, 2008 Thanks Oily. On a related topic, what would be your golden rule for use of copper grease on threads? I hope I'm not hijacking this topic too much, but this question does seem relevant and on-topic. Anthony Link to comment Share on other sites More sharing options...
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