Anderzander Posted April 15, 2015 Share Posted April 15, 2015 Would you fit these with gaskets or sealant ? Or both ? I'm not sure which is best to stop water getting into the bolt threads. Quote Link to comment Share on other sites More sharing options...
western Posted April 15, 2015 Share Posted April 15, 2015 LR list gaskets for these, see item 5,6 for hinges or items 13,14 for later fixed screens http://lrcat.com/#31/4/52775 a bead of sealant around the finally fitted item won't do any harm. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted April 15, 2015 Share Posted April 15, 2015 Gaskets, with sealant around the bolt holes. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted April 15, 2015 Author Share Posted April 15, 2015 Revealing the true depth of my ignorance ... which side of the gasket would you put the sealant - against the frame I presume ? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted April 15, 2015 Share Posted April 15, 2015 Both I would say, better safe than sorry with the propensity these bloody things have for leaking! Quote Link to comment Share on other sites More sharing options...
need4speed Posted April 15, 2015 Share Posted April 15, 2015 Don't think it matters too much. As James says I think it's more important you get it round the bolt holes Quote Link to comment Share on other sites More sharing options...
Anderzander Posted April 15, 2015 Author Share Posted April 15, 2015 Thanks folks Quote Link to comment Share on other sites More sharing options...
dailysleaze Posted April 15, 2015 Share Posted April 15, 2015 I'd put ptfe on the bolt threads too as mine had massive corrosion inside that was spreading to the windscreen frame due to the steel bolts Quote Link to comment Share on other sites More sharing options...
need4speed Posted April 15, 2015 Share Posted April 15, 2015 That's a very good point that I forgot about. I did that to mine as well as every ss bolt ive used in order to try and prevent galvanic corrosion. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted April 15, 2015 Author Share Posted April 15, 2015 Great idea thank you. Quote Link to comment Share on other sites More sharing options...
RustyNissanPrairie Posted April 15, 2015 Share Posted April 15, 2015 That's a very good point that I forgot about. I did that to mine as well as every ss bolt ive used in order to try and prevent galvanic corrosion. Stainless actually increases the amount of galvanic corrosion - zinc ( preferably in either galvanized or sherardized form) is the best for Landrover based applications ie mild steel & aluminium materials. SS is okay as long as its smothered in Duralac (or better) or has a physical barrier. http://www.preservationscience.com/materials/metals/PGC.html Quote Link to comment Share on other sites More sharing options...
need4speed Posted April 16, 2015 Share Posted April 16, 2015 Stainless actually increases the amount of galvanic corrosion... Which is exactly why I made the point of covering each bolt with ptfe tape. Also used rubber washers where ss washers would be up against ally.. Digressing a bit from op mind you. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted April 16, 2015 Author Share Posted April 16, 2015 Don't worry about digression - it's all helpful. I do wonder about the stainless issue. As a result of having only a partial understanding I can't work out why some people I've known rebuilt with stainless fasteners years ago and have had no sign of galvanic corrosion since ? Is it because of a good seal and an absence of an electrolyte ? Or is it something to do with the cathodic metal being the fastener with the smaller surface area ? Quote Link to comment Share on other sites More sharing options...
need4speed Posted April 16, 2015 Share Posted April 16, 2015 If stainless touches ally it WILL promote fast galvanic corrosion. Stainless fasteners are great (for non high-tensile applications) but they MUST be separated from ally. Otherwise the ally will practically turn to powder before your very eyes. As long as you make sure that the shank of any bolt/screw is covered in ptfe you will be fine. Same with washers. If you isolate the stainless washer from the ally by using a rubber washer as a kind of gasket between the 2 different metals you will be golden.. Quote Link to comment Share on other sites More sharing options...
cackshifter Posted April 16, 2015 Share Posted April 16, 2015 I have found Tefgel seems to work and is less messy than duralac Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.