TM 10-3930-669-20 (14) Apply teflon tape to threads of oil pressure sending unit (11) and engine oil temperature sensor (5). (15) Install oil pressure sending unit (11) in heater valve (14). (16) Install engine oil temperature sensor (5) in heater valve (14). (17) Remove heater valve (14) from soft-jawed vise. NOTE Engine remote oil filter hoses must be installed on heater valve prior to installing heater valve to allow proper tightening of engine remote oil filter hoses. (18) Install two engine remote oil filter hoses (24), as tagged and marked during removal, on two fittings (25). (19) Position fitting (20) on heater valve (14) with two seals (19) and hollow screw (18).  Do not tighten. 16-37