Valve stem oil seals

[Friday]

Has anyone experience in changing the valve stem oil seals on an rcz 156?

I plan to use the rope method to change the seals and need some advice on the specific valve spring compression tool that is best. The engine is fairly tight so I’m looking for a tool that fits the space plus makes swapping the collets simple.

Also, the timing tools for the engine look quite cheap - anyone with bad experience of using cheap timing set on this engine?

I’ve asked AI and am convinced AI will be the death of many an engine.

 

[Pedro]

Depending on Mileage if heavy Carbon Build up if the valve chambers & valve seats are clogged up changing seals will not fully cure the problem

 

[gwest]

I'm thinking I might just change the exhaust valve stem seals on my 124k km RCZ THP200. I don't think the carbon buildup would be too bad at this mileage and it would be interesting to see how much difference it makes to my oil consumption. I saw a tool on Aliexpress that seems to have quite a versatile setup for doing the job without removing the head. I don't think it would be worth trying to use it on the inlet valves because of lack of room for dealing with the complicated business of removing the variable valve height mechanism