IMS install

[JFP in PA]

If the engine is not locked at TDC, one or more valve springs are under compression and will try to rotate the engine when the tensioners are released. Do a search, Jake has commented on this multiple times. TDC is the only engine position where the springs to not load the cam drives. If the cams are unlocked and the engine is not locked at TDC, you risk the system jumping time when the tensioners are released. You may get away with doing it in this weird manor, but then again, you may not.............my guess is that you won’t.

[Meir]

Originally Posted by JFP in PA

If the engine is not locked at TDC, one or more valve springs are under compression and will try to rotate the engine when the tensioners are released. Do a search, Jake has commented on this multiple times. TDC is the only engine position where the springs to not load the cam drives. If the cams are unlocked and the engine is not locked at TDC, you risk the system jumping time when the tensioners are released. You may get away with doing it in this weird manor, but then again, you may not.............my guess is that you won’t.

with that said, why Wayne came up with the screw locking method of the IMS ?
am i missing something in his great article?
and if i got JFP on the hook , i whould like to ask another question please.
if the oil pan is removed, will i be able to see the tip of the IMS?
what i'm trying to understand, is if in a case of the IMS going of center, will i be able to re center it thru the oil sump.

[JFP in PA]

Originally Posted by Meir

with that said, why Wayne came up with the screw locking method of the IMS ?
am i missing something in his great article?
and if i got JFP on the hook , i whould like to ask another question please.
if the oil pan is removed, will i be able to see the tip of the IMS?
what i'm trying to understand, is if in a case of the IMS going of center, will i be able to re center it thru the oil sump.

I can only speculate that Wayne was trying to extend his "low cost alternative" to the required tooling as well.

If you look up with the sump cover removed, you will not be able to see very much as the sump air oil separators (arrows) and oil pick up are in the way, plus there is no real access to the IMS shaft because the sump is crosswise to the axis of the IMS and crank: