I think blue hylomar was developed for early jet engines. Non setting sealant , if gap opens and closes due to heating/cooling cycles the sealant still works when gap closes .
The original blue hylomar seemed to have an indefinite shelf live , the "new" stuff appears to go off. I expect it has been improved (-:
It was used on steam plants same as hermattite, red hermatite sets hylomar dosn't, which was better on valves that need removing for maintenance etc.
worked on high pressure steam plants running at 1600-1800 psi (110-125bar)
If you use Hylomar on a 'jet'(gas turbine) engine, then you would be classed as a bad engineeer!
My Uncle who died at least 30 years ago worked on the Merlin production lines at Hillington Renfrew. I'm pretty sure he said Hylomar was invented so they could use fewer gaskets. But it's so long ago who knows if I've remembered correctly.
My Uncle who died at least 30 years ago worked on the Merlin production lines at Hillington Renfrew. I'm pretty sure he said Hylomar was invented so they could use fewer gaskets. But it's so long ago who knows if I've remembered correctly.
Thanks Jock. I think your device would be a great idea. With the many Renaults I had, you could just unclip the header bottle and clip it to the bonnet latch to get a head. The 69HP has a different filler cap and I think a male 15mm hose connector might just push in which would make life easy. I will either copy yours or bodge something similar. I think its OK for now as the level seems to be stable. A few more miles will tell. I'm still waiting to hopefully loose my own lower hose. Back to hospital -hopefully- on 16th. If I am lucky I might get repaired as well as inspected. If not my car mending days are over anyway.