Engine is out; suggest servicing recommendations

[Fazerider]

[quote author=fazersharp link=topic=24808.msg289340#msg289340 date=1545390434]
Take the opportunity to remove the exhaust studs and replace with stainless steel. Search the forum for exhaust studs.

:agree [size=1em] Definitely a good move, did mine while still in the frame, not easy but not impossible either.[/size]
[size=1em]Stainless studs with plain steel nuts, or, Stainless nuts on plain steel studs.[/size]
[size=1em]Stainless with Stainless is not good because of 'Galling' (Cold Welding) can make it impossible to undo.[/size]

[size=1em]Stainless steel turnbuckles on a yachts standing rigging are a disaster, they are strong and fine until you need to adjust or remove them.[/size]

[size=1em]Had a survey done on Zara (Yacht) last spring ready for the new season (Insurance requirement) and we had to take the mast down for the survey and to replace a navigation light head, ended up having to cut all the turnbuckles off with a disc cutter as they refused to shift. [/size]
[size=1em]6 new turnbuckles at £47 each and a lot of work. I put one of the old turnbuckles in an engineers vice and attacked it with a set of 24" Stilsons, all I managed was to twist the 60 mm long x 10mm stud around like a candy twist and snap it off, no sign of movement on the threads. Don't need galling on an exhaust stud.[/size]

[size=1em]It's worth putting dab of copper slip on the studs before you spin the nuts on, I remove the stud nuts one at [/size]a time, not all at once, each year and reapply copper slip to each as a part of my winterisation service, they come undo with no problems at all.  
[/quote]

Using different grades of stainless steel is supposed to go a long way towards avoiding the risk of galling.
I used A2 threaded rod for the studs and A4 dome nuts and haven’t had any problem. Though admittedly, I do stuff the nuts with Copaslip too which would probably be adequate protection even if you used the same grade of stainless for both nut and stud.