Chuck I am not sure that is a good idea to redrill the hole. I have looked
all over the house and tried to find the oil circulation diagram for the 455
engine but can't find it. I believe however that the small hole may act as
an oil resticter to keep oil flow high to the main bearings when engine RPM
is low. If so drilling it could have long term consequences to the engine.
I would not change anything in the engine unless I understood the
consequences of the change first. Just an opinion and maybe someone else has
the correct answer.
>While your underneath your coach and you have all the oil lines and
>filter off. Take a minute to remove the oil filter adapter, take a look
>at the size of the oil passage between the adapter (aluminum) and the
>engine. You will see there is very little clearance for the oil to
>flow. I looked at several and they were all pretty small, about the
>size of a screwdriver point (flat number 2). I had the machines drill
>and dress mine and I am sure I am getting good oil flow and no false
>sense of security in the oil gauge. Chuck
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
all over the house and tried to find the oil circulation diagram for the 455
engine but can't find it. I believe however that the small hole may act as
an oil resticter to keep oil flow high to the main bearings when engine RPM
is low. If so drilling it could have long term consequences to the engine.
I would not change anything in the engine unless I understood the
consequences of the change first. Just an opinion and maybe someone else has
the correct answer.
>While your underneath your coach and you have all the oil lines and
>filter off. Take a minute to remove the oil filter adapter, take a look
>at the size of the oil passage between the adapter (aluminum) and the
>engine. You will see there is very little clearance for the oil to
>flow. I looked at several and they were all pretty small, about the
>size of a screwdriver point (flat number 2). I had the machines drill
>and dress mine and I am sure I am getting good oil flow and no false
>sense of security in the oil gauge. Chuck
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
