ISX 435 CM871 DOHC Removal

[ChrisMc]

Does anyone know if the IFSM sprocket has to be pulled out of the head in order to remove the injector cam?

[Bengy88]

The assembly does need to be pulled back away from the head. I think Rawze has videos on his YouTube channel where he overhauled his engine and he shows the cam removal in these.

[ChrisMc]

Yes, in the videos he cleared everything to pull the head. I'm just changing cams and the valve train so I'm trying to remove as little as possible.

[Rawze]

maybe pulling only the gear pump away instead of the whole IFSM??>.. just a thought.

[Bengy88]

(06-27-2023 )Rawze Wrote:  maybe pulling only the gear pump away instead of the whole IFSM??>.. just a thought.

Brain fart lol. I defaulted to an overhaul oops.

[Signature620]

The IFSM needs to be removed or pulled back regardless. The gear that contacts the cam is an idler between the fuel pump and the cam. There's no other way.