There is a small rubber seal which sits between the intake manifold and the thermostat housing, and I would like to replace this seal. How can I replace this seal if there is such a small gap between the intake manifold and the thermostat housing (when the thermostat housing bolts have been removed). There seems to be a half inch gap at the most, not enough room to get fingers into the gap and just not enough room to remove the old seal and put a new seal in and make sure it has seated itself properly.