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Copper RTV on cyclinder head?
Posted: Sun Oct 11, 2015 9:58 pm
by alanscottj
Can I use a very thin smearing of Copper RTV gasket stuff as a sealant on my TS1 top end? I know it's used for exhausts but am I safe to use on cyclinder head? Thanks
Re: Copper RTV on cyclinder head?
Posted: Mon Oct 12, 2015 5:57 am
by LI225Canada
Re: Copper RTV on cyclinder head?
Posted: Sat Oct 17, 2015 8:26 am
by ming
My latest go-to on cylinder heads is high-temp loctite or equivalent thread lock. I know Broadhurst touts the benefits of loctite on heads and head gaskets and I was initially skeptical but nowadays I'm pretty sold.
Re: Copper RTV on cyclinder head?
Posted: Sat Oct 17, 2015 11:01 am
by alanscottj
I used the copper RTV on it in the end, only a very, very thin smear on each side of the gasket and it appears to have done the job. As soon as I sealed all of the joints on the exhaust and the top end I realised just how bad the engine was for air leaks as the difference in performance/sound even vibration, was really significant. Lesson learned - leak down test, every time!
Just had her set up properly on a dyno on Wednesday and it is a different bike all together. I thought it was running ok before (had nothing to compare it to it being my first Lambretta) but once they had set it up I can now see how rough it was running. Best 60 quid I've spent on it, that included them setting the timing and the dyno
runs like a proper TS1 now and certainly has the grin factor, she's a flier
