Darren

Posted by Caveman on 03/09/2020 21:14:40: This YouTube video shows the rebuild of an OS 52 four stroke. Building the valve into the head is shown from 5:45 Valve rebuild He makes it look very easy and quite simple!! GDB Those valves that are secured in place with circlips are pretty simple, it is the ones that are held in place with the collects that are the pain. You need three hands.

Thanks for all of the info and tips, I will give the ring spanner a go, that sounds a bit better than the tweezers that I have been using.

Posted by kc on 03/09/2020 15:31:57: I think Brian Winch covered this in one of his articles -- the one bit I remember is that you should use a polythene bag to catch the bits that fly out. I have actually tried re assembling within a large grip seal bag to save loosing flying bits and parts, to be honest it just makes things even harder.

Is there any such tool as a mini valve spring compressor for model 4 stroke engines? To re fit the tiny collets to hold the valves in place I use a set of tweezers in one hand to compress the spring and fit the collets with the other but this takes multiple attempts and sometimes when the tweezers slip off it pings the collets across the workshop never to be found, I am looking for an easier solution to this problem. Manufactures must have a tool for this job?? Any tips or tricks would be appreciated. Thanks Edited By Darren on 03/09/2020 15:27:37

Hi Alan, yes I am interested, I have sent a reply to you via private message. Cheers, Darren Edited By Darren on 01/07/2016 17:26:41

I am looking to buy an OS Wankel engine, working or non working considered but must be complete. If anyone has a spare one of these engines for sale please message me. Thanks Darren