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Car Forum / Ford / Ford Falcon / December 2003grinding valves in Escort 1300
It says in the manual that the valves dont need to be ground in, but i feel they do. Any ideas on this subject ?? Also is it the best to push pistons thru the top of block or out thru the bottom ?? Thanx folks Peter Out the top. Brenden > It says in the manual that the valves dont need to be ground in, but i feel > they do. Any ideas on this subject ?? Also is it the best to push pistons > thru the top of block or out thru the bottom ?? Thanx folks > > Peter > It says in the manual that the valves dont need to be ground in, but i feel > they do. Any ideas on this subject ?? Also is it the best to push pistons > thru the top of block or out thru the bottom ?? Thanx folks > > Peter Haven't heard of removing pistons from the bottom, tho its theoretically possible with the crank out I suppose. Valve grinding is supposed to be done to ensure the seal is correct. The seat should leave a witness mark in the middle of the valve face, with clearance on both sides equal in width. I would only lap valves in if the seats have been re-cut (and relieved to stop pocketting), otherwise lapping them in can cause the valve face to go concave due worn seats in the head. Opinion only ~(8^I) Jason
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