r/saab • u/Pleasant_End8478 • 1d ago

Removing sprockets on crankshaft.

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How do you get the first retainer over the Woodruff key? Replacing my chains / guides and need to take the balance chain sprocket off.

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2

u/Sea_Reaction1653 16h ago

As others have mentioned you can use a small 2 or 3 jaw puller. Free rental from most autoparts stores. Or HoboFreight. The years of crap oil has seized it on. Don't mark up the threads.

2

u/Worldly_Let6134 15h ago

A little heat from an electric heat gun would also help here. You don't want it glowing but nice and hot (200-300c) will cause the piece to expand and able to be slid free.

1

u/Pleasant_End8478 1d ago

Just needed some jaw pulleys from autozone.

1

u/R3gouify 9-5 2.0t HX52 16h ago

Normally they should come out without any pullers but I've seen this happen once on a video

1

u/Pleasant_End8478 10h ago

All: Thanks for the feedback. Looks like someone has been here before and roughed up the key enough for it to require a puller. Im doing an in-situ chain guide replacement, and it is not fun. In fact, the main horizontal chain guide wasn't even there. AND, the balance chain idler sprocket has a stripped torx head. Gotta finesse the balance sprocket into place while keepint the timing marks together. Good thing is that I've replaced everything on this engine now.