Well it's my first post and I just want to say thank you.
From what I've found and read here I've been able to sort my 17" 4508 that I bought at a house clearance for just $50 some 12 months ago.
I've replaced the clutch body with the new type that uses the grub screws, the captive cotter pin having long since jumped ship and had flogged out the bore of body so the whole mower shook, rattled and ran very erratically. Thankfully the shaft wasn't too badly damaged with just minor wear on the keyway.
I got all my parts this morning and it's now running so so much better. No hunting and running very smoothly.
Thanks everyone.
