Thanks for that, yes, on further inspection I found exactly as you said should be the way it works, but then found the reason that it wasn't doing it. All the deck mounting pins were either badly worn, or about to wear through. Every bolt/pin was rusted and seized. Dropped the whole deck and reworked it all. Yes, it now slides forward/backward with the deck engage lever. This mower has became a long headache for me, as the 11hp briggs was a throw away also, with the counterweight bushes gone, and no longer available. Have sourced a nice honda engine for it, so it is looking more up now. Never again will I buy a non running machine though. Oh...and the steering gear and shaft was missing, and had to be made up also. Regards. Geoff