The head is off... You can get a spring compressor which will work with the head in - it looks like a lever, where the pivot bolts down to an exposed thread in the head. I've only got the engine, no vehicle as of yet. Plan being to build one up over time.

Suffix G... Understood. Cheers for the tip! Valve stem oil seals and caps ordered; and a few tools to get it done. I don't see any reason to change the springs, unless I'm missing something? Considering trying to offer some of these guys at the hand car wash a few notes to blast the gunk off...

So, I did actually check the shaft with a micrometer; less than 0.01mm difference across the length. The rocker bearings aren't down to the second layer of metal, but I'm not sure how much play is allowed. Basically, if I hold the tip on the valve end, I can feel it move slightly side to side...

Hi everyone... I have a question for those with more experience. Are the £3 aftermarket rocker arms a disaster waiting to happen? Or are the £30 genuine ones a rip-off? Having removed and dismantled my rocker assembly I've noticed there's a bit of play in the rocker arms. I thought about...